ComfyUI version v0.3.68

Updated help text for the --fast argument to clarify potential risks.

.ci/windows_nvidia_base_files/advanced/run_nvidia_gpu_disable_api_nodes.bat

@@ -0,0 +1,3 @@
+..\python_embeded\python.exe -s ..\ComfyUI\main.py --windows-standalone-build --disable-api-nodes
+echo If you see this and ComfyUI did not start try updating your Nvidia Drivers to the latest.
+pause

.ci/windows_nvidia_base_files/run_nvidia_gpu.bat

@@ -1,2 +1,3 @@
 .\python_embeded\python.exe -s ComfyUI\main.py --windows-standalone-build
+echo If you see this and ComfyUI did not start try updating your Nvidia Drivers to the latest.
 pause

.ci/windows_nvidia_base_files/run_nvidia_gpu_fast_fp16_accumulation.bat

@@ -1,2 +1,3 @@
 .\python_embeded\python.exe -s ComfyUI\main.py --windows-standalone-build --fast fp16_accumulation
+echo If you see this and ComfyUI did not start try updating your Nvidia Drivers to the latest.
 pause

.github/workflows/release-stable-all.yml

@@ -18,9 +18,9 @@ jobs:
     uses: ./.github/workflows/stable-release.yml
     with:
       git_tag: ${{ inputs.git_tag }}
-      cache_tag: "cu129"
+      cache_tag: "cu130"
       python_minor: "13"
-      python_patch: "6"
+      python_patch: "9"
       rel_name: "nvidia"
       rel_extra_name: ""
       test_release: true

.github/workflows/windows_release_dependencies.yml

@@ -17,7 +17,7 @@ on:
         description: 'cuda version'
         required: true
         type: string
-        default: "129"
+        default: "130"
 
       python_minor:
         description: 'python minor version'
@@ -29,7 +29,7 @@ on:
         description: 'python patch version'
         required: true
         type: string
-        default: "6"
+        default: "9"
 #  push:
 #    branches:
 #      - master

README.md

@@ -176,6 +176,8 @@ Simply download, extract with [7-Zip](https://7-zip.org) and run. Make sure you
 
 If you have trouble extracting it, right click the file -> properties -> unblock
 
+Update your Nvidia drivers if it doesn't start.
+
 #### Alternative Downloads:
 
 [Experimental portable for AMD GPUs](https://github.com/comfyanonymous/ComfyUI/releases/latest/download/ComfyUI_windows_portable_amd.7z)
@@ -197,7 +199,11 @@ comfy install
 
 ## Manual Install (Windows, Linux)
 
-Python 3.13 is very well supported. If you have trouble with some custom node dependencies you can try 3.12
+Python 3.14 will work if you comment out the `kornia` dependency in the requirements.txt file (breaks the canny node) but it is not recommended.
+
+Python 3.13 is very well supported. If you have trouble with some custom node dependencies on 3.13 you can try 3.12
+
+### Instructions:
 
 Git clone this repo.
 
@@ -253,7 +259,7 @@ This is the command to install the Pytorch xpu nightly which might have some per
 
 Nvidia users should install stable pytorch using this command:
 
-```pip install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu129```
+```pip install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu130```
 
 This is the command to install pytorch nightly instead which might have performance improvements.
 

app/subgraph_manager.py

@@ -0,0 +1,112 @@
+from __future__ import annotations
+
+from typing import TypedDict
+import os
+import folder_paths
+import glob
+from aiohttp import web
+import hashlib
+
+
+class Source:
+    custom_node = "custom_node"
+
+class SubgraphEntry(TypedDict):
+    source: str
+    """
+    Source of subgraph - custom_nodes vs templates.
+    """
+    path: str
+    """
+    Relative path of the subgraph file.
+    For custom nodes, will be the relative directory like <custom_node_dir>/subgraphs/<name>.json
+    """
+    name: str
+    """
+    Name of subgraph file.
+    """
+    info: CustomNodeSubgraphEntryInfo
+    """
+    Additional info about subgraph; in the case of custom_nodes, will contain nodepack name
+    """
+    data: str
+
+class CustomNodeSubgraphEntryInfo(TypedDict):
+    node_pack: str
+    """Node pack name."""
+
+class SubgraphManager:
+    def __init__(self):
+        self.cached_custom_node_subgraphs: dict[SubgraphEntry] | None = None
+
+    async def load_entry_data(self, entry: SubgraphEntry):
+        with open(entry['path'], 'r') as f:
+            entry['data'] = f.read()
+        return entry
+
+    async def sanitize_entry(self, entry: SubgraphEntry | None, remove_data=False) -> SubgraphEntry | None:
+        if entry is None:
+            return None
+        entry = entry.copy()
+        entry.pop('path', None)
+        if remove_data:
+            entry.pop('data', None)
+        return entry
+
+    async def sanitize_entries(self, entries: dict[str, SubgraphEntry], remove_data=False) -> dict[str, SubgraphEntry]:
+        entries = entries.copy()
+        for key in list(entries.keys()):
+            entries[key] = await self.sanitize_entry(entries[key], remove_data)
+        return entries
+
+    async def get_custom_node_subgraphs(self, loadedModules, force_reload=False):
+        # if not forced to reload and cached, return cache
+        if not force_reload and self.cached_custom_node_subgraphs is not None:
+            return self.cached_custom_node_subgraphs
+        # Load subgraphs from custom nodes
+        subfolder = "subgraphs"
+        subgraphs_dict: dict[SubgraphEntry] = {}
+
+        for folder in folder_paths.get_folder_paths("custom_nodes"):
+            pattern = os.path.join(folder, f"*/{subfolder}/*.json")
+            matched_files = glob.glob(pattern)
+            for file in matched_files:
+                # replace backslashes with forward slashes
+                file = file.replace('\\', '/')
+                info: CustomNodeSubgraphEntryInfo = {
+                    "node_pack": "custom_nodes." + file.split('/')[-3]
+                }
+                source = Source.custom_node
+                # hash source + path to make sure id will be as unique as possible, but
+                # reproducible across backend reloads
+                id = hashlib.sha256(f"{source}{file}".encode()).hexdigest()
+                entry: SubgraphEntry = {
+                    "source": Source.custom_node,
+                    "name": os.path.splitext(os.path.basename(file))[0],
+                    "path": file,
+                    "info": info,
+                }
+                subgraphs_dict[id] = entry
+        self.cached_custom_node_subgraphs = subgraphs_dict
+        return subgraphs_dict
+
+    async def get_custom_node_subgraph(self, id: str, loadedModules):
+        subgraphs = await self.get_custom_node_subgraphs(loadedModules)
+        entry: SubgraphEntry = subgraphs.get(id, None)
+        if entry is not None and entry.get('data', None) is None:
+            await self.load_entry_data(entry)
+        return entry
+
+    def add_routes(self, routes, loadedModules):
+        @routes.get("/global_subgraphs")
+        async def get_global_subgraphs(request):
+            subgraphs_dict = await self.get_custom_node_subgraphs(loadedModules)
+            # NOTE: we may want to include other sources of global subgraphs such as templates in the future;
+            # that's the reasoning for the current implementation
+            return web.json_response(await self.sanitize_entries(subgraphs_dict, remove_data=True))
+
+        @routes.get("/global_subgraphs/{id}")
+        async def get_global_subgraph(request):
+            id = request.match_info.get("id", None)
+            subgraph = await self.get_custom_node_subgraph(id, loadedModules)
+            return web.json_response(await self.sanitize_entry(subgraph))

comfy/cli_args.py

@@ -105,6 +105,7 @@ cache_group = parser.add_mutually_exclusive_group()
 cache_group.add_argument("--cache-classic", action="store_true", help="Use the old style (aggressive) caching.")
 cache_group.add_argument("--cache-lru", type=int, default=0, help="Use LRU caching with a maximum of N node results cached. May use more RAM/VRAM.")
 cache_group.add_argument("--cache-none", action="store_true", help="Reduced RAM/VRAM usage at the expense of executing every node for each run.")
+cache_group.add_argument("--cache-ram", nargs='?', const=4.0, type=float, default=0, help="Use RAM pressure caching with the specified headroom threshold. If available RAM drops below the threhold the cache remove large items to free RAM. Default 4GB")
 
 attn_group = parser.add_mutually_exclusive_group()
 attn_group.add_argument("--use-split-cross-attention", action="store_true", help="Use the split cross attention optimization. Ignored when xformers is used.")
@@ -144,8 +145,9 @@ class PerformanceFeature(enum.Enum):
     Fp8MatrixMultiplication = "fp8_matrix_mult"
     CublasOps = "cublas_ops"
     AutoTune = "autotune"
+    PinnedMem = "pinned_memory"
 
-parser.add_argument("--fast", nargs="*", type=PerformanceFeature, help="Enable some untested and potentially quality deteriorating optimizations. --fast with no arguments enables everything. You can pass a list specific optimizations if you only want to enable specific ones. Current valid optimizations: {}".format(" ".join(map(lambda c: c.value, PerformanceFeature))))
+parser.add_argument("--fast", nargs="*", type=PerformanceFeature, help="Enable some untested and potentially quality deteriorating optimizations. This is used to test new features so using it might crash your comfyui. --fast with no arguments enables everything. You can pass a list specific optimizations if you only want to enable specific ones. Current valid optimizations: {}".format(" ".join(map(lambda c: c.value, PerformanceFeature))))
 
 parser.add_argument("--mmap-torch-files", action="store_true", help="Use mmap when loading ckpt/pt files.")
 parser.add_argument("--disable-mmap", action="store_true", help="Don't use mmap when loading safetensors.")

comfy/controlnet.py

@@ -310,11 +310,13 @@ class ControlLoraOps:
             self.bias = None
 
         def forward(self, input):
-            weight, bias = comfy.ops.cast_bias_weight(self, input)
+            weight, bias, offload_stream = comfy.ops.cast_bias_weight(self, input, offloadable=True)
             if self.up is not None:
-                return torch.nn.functional.linear(input, weight + (torch.mm(self.up.flatten(start_dim=1), self.down.flatten(start_dim=1))).reshape(self.weight.shape).type(input.dtype), bias)
+                x = torch.nn.functional.linear(input, weight + (torch.mm(self.up.flatten(start_dim=1), self.down.flatten(start_dim=1))).reshape(self.weight.shape).type(input.dtype), bias)
             else:
-                return torch.nn.functional.linear(input, weight, bias)
+                x = torch.nn.functional.linear(input, weight, bias)
+            comfy.ops.uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
     class Conv2d(torch.nn.Module, comfy.ops.CastWeightBiasOp):
         def __init__(
@@ -350,12 +352,13 @@ class ControlLoraOps:
 
 
         def forward(self, input):
-            weight, bias = comfy.ops.cast_bias_weight(self, input)
+            weight, bias, offload_stream = comfy.ops.cast_bias_weight(self, input, offloadable=True)
             if self.up is not None:
-                return torch.nn.functional.conv2d(input, weight + (torch.mm(self.up.flatten(start_dim=1), self.down.flatten(start_dim=1))).reshape(self.weight.shape).type(input.dtype), bias, self.stride, self.padding, self.dilation, self.groups)
+                x = torch.nn.functional.conv2d(input, weight + (torch.mm(self.up.flatten(start_dim=1), self.down.flatten(start_dim=1))).reshape(self.weight.shape).type(input.dtype), bias, self.stride, self.padding, self.dilation, self.groups)
             else:
-                return torch.nn.functional.conv2d(input, weight, bias, self.stride, self.padding, self.dilation, self.groups)
-
+                x = torch.nn.functional.conv2d(input, weight, bias, self.stride, self.padding, self.dilation, self.groups)
+            comfy.ops.uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
 class ControlLora(ControlNet):
     def __init__(self, control_weights, global_average_pooling=False, model_options={}): #TODO? model_options

comfy/ldm/chroma_radiance/model.py

@@ -189,15 +189,15 @@ class ChromaRadiance(Chroma):
         nerf_pixels = nn.functional.unfold(img_orig, kernel_size=patch_size, stride=patch_size)
         nerf_pixels = nerf_pixels.transpose(1, 2) # -> [B, NumPatches, C * P * P]
 
+        # Reshape for per-patch processing
+        nerf_hidden = img_out.reshape(B * num_patches, params.hidden_size)
+        nerf_pixels = nerf_pixels.reshape(B * num_patches, C, patch_size**2).transpose(1, 2)
+
         if params.nerf_tile_size > 0 and num_patches > params.nerf_tile_size:
             # Enable tiling if nerf_tile_size isn't 0 and we actually have more patches than
             # the tile size.
-            img_dct = self.forward_tiled_nerf(img_out, nerf_pixels, B, C, num_patches, patch_size, params)
+            img_dct = self.forward_tiled_nerf(nerf_hidden, nerf_pixels, B, C, num_patches, patch_size, params)
         else:
-            # Reshape for per-patch processing
-            nerf_hidden = img_out.reshape(B * num_patches, params.hidden_size)
-            nerf_pixels = nerf_pixels.reshape(B * num_patches, C, patch_size**2).transpose(1, 2)
-
             # Get DCT-encoded pixel embeddings [pixel-dct]
             img_dct = self.nerf_image_embedder(nerf_pixels)
 
@@ -240,17 +240,8 @@ class ChromaRadiance(Chroma):
             end = min(i + tile_size, num_patches)
 
             # Slice the current tile from the input tensors
-            nerf_hidden_tile = nerf_hidden[:, i:end, :]
-            nerf_pixels_tile = nerf_pixels[:, i:end, :]
-
-            # Get the actual number of patches in this tile (can be smaller for the last tile)
-            num_patches_tile = nerf_hidden_tile.shape[1]
-
-            # Reshape the tile for per-patch processing
-            # [B, NumPatches_tile, D] -> [B * NumPatches_tile, D]
-            nerf_hidden_tile = nerf_hidden_tile.reshape(batch * num_patches_tile, params.hidden_size)
-            # [B, NumPatches_tile, C*P*P] -> [B*NumPatches_tile, C, P*P] -> [B*NumPatches_tile, P*P, C]
-            nerf_pixels_tile = nerf_pixels_tile.reshape(batch * num_patches_tile, channels, patch_size**2).transpose(1, 2)
+            nerf_hidden_tile = nerf_hidden[i * batch:end * batch]
+            nerf_pixels_tile = nerf_pixels[i * batch:end * batch]
 
             # get DCT-encoded pixel embeddings [pixel-dct]
             img_dct_tile = self.nerf_image_embedder(nerf_pixels_tile)

comfy/ldm/lumina/model.py

@@ -522,7 +522,7 @@ class NextDiT(nn.Module):
         max_cap_len = max(l_effective_cap_len)
         max_img_len = max(l_effective_img_len)
 
-        position_ids = torch.zeros(bsz, max_seq_len, 3, dtype=torch.int32, device=device)
+        position_ids = torch.zeros(bsz, max_seq_len, 3, dtype=torch.float32, device=device)
 
         for i in range(bsz):
             cap_len = l_effective_cap_len[i]
@@ -531,10 +531,22 @@ class NextDiT(nn.Module):
             H_tokens, W_tokens = H // pH, W // pW
             assert H_tokens * W_tokens == img_len
 
-            position_ids[i, :cap_len, 0] = torch.arange(cap_len, dtype=torch.int32, device=device)
+            rope_options = transformer_options.get("rope_options", None)
+            h_scale = 1.0
+            w_scale = 1.0
+            h_start = 0
+            w_start = 0
+            if rope_options is not None:
+                h_scale = rope_options.get("scale_y", 1.0)
+                w_scale = rope_options.get("scale_x", 1.0)
+
+                h_start = rope_options.get("shift_y", 0.0)
+                w_start = rope_options.get("shift_x", 0.0)
+
+            position_ids[i, :cap_len, 0] = torch.arange(cap_len, dtype=torch.float32, device=device)
             position_ids[i, cap_len:cap_len+img_len, 0] = cap_len
-            row_ids = torch.arange(H_tokens, dtype=torch.int32, device=device).view(-1, 1).repeat(1, W_tokens).flatten()
-            col_ids = torch.arange(W_tokens, dtype=torch.int32, device=device).view(1, -1).repeat(H_tokens, 1).flatten()
+            row_ids = (torch.arange(H_tokens, dtype=torch.float32, device=device) * h_scale + h_start).view(-1, 1).repeat(1, W_tokens).flatten()
+            col_ids = (torch.arange(W_tokens, dtype=torch.float32, device=device) * w_scale + w_start).view(1, -1).repeat(H_tokens, 1).flatten()
             position_ids[i, cap_len:cap_len+img_len, 1] = row_ids
             position_ids[i, cap_len:cap_len+img_len, 2] = col_ids
 

comfy/ldm/mmaudio/vae/activations.py

@@ -0,0 +1,120 @@
+# Implementation adapted from https://github.com/EdwardDixon/snake under the MIT license.
+#   LICENSE is in incl_licenses directory.
+
+import torch
+from torch import nn, sin, pow
+from torch.nn import Parameter
+import comfy.model_management
+
+class Snake(nn.Module):
+    '''
+    Implementation of a sine-based periodic activation function
+    Shape:
+        - Input: (B, C, T)
+        - Output: (B, C, T), same shape as the input
+    Parameters:
+        - alpha - trainable parameter
+    References:
+        - This activation function is from this paper by Liu Ziyin, Tilman Hartwig, Masahito Ueda:
+        https://arxiv.org/abs/2006.08195
+    Examples:
+        >>> a1 = snake(256)
+        >>> x = torch.randn(256)
+        >>> x = a1(x)
+    '''
+    def __init__(self, in_features, alpha=1.0, alpha_trainable=True, alpha_logscale=False):
+        '''
+        Initialization.
+        INPUT:
+            - in_features: shape of the input
+            - alpha: trainable parameter
+            alpha is initialized to 1 by default, higher values = higher-frequency.
+            alpha will be trained along with the rest of your model.
+        '''
+        super(Snake, self).__init__()
+        self.in_features = in_features
+
+        # initialize alpha
+        self.alpha_logscale = alpha_logscale
+        if self.alpha_logscale:
+            self.alpha = Parameter(torch.empty(in_features))
+        else:
+            self.alpha = Parameter(torch.empty(in_features))
+
+        self.alpha.requires_grad = alpha_trainable
+
+        self.no_div_by_zero = 0.000000001
+
+    def forward(self, x):
+        '''
+        Forward pass of the function.
+        Applies the function to the input elementwise.
+        Snake ∶= x + 1/a * sin^2 (xa)
+        '''
+        alpha = comfy.model_management.cast_to(self.alpha, dtype=x.dtype, device=x.device).unsqueeze(0).unsqueeze(-1) # line up with x to [B, C, T]
+        if self.alpha_logscale:
+            alpha = torch.exp(alpha)
+        x = x + (1.0 / (alpha + self.no_div_by_zero)) * pow(sin(x * alpha), 2)
+
+        return x
+
+
+class SnakeBeta(nn.Module):
+    '''
+    A modified Snake function which uses separate parameters for the magnitude of the periodic components
+    Shape:
+        - Input: (B, C, T)
+        - Output: (B, C, T), same shape as the input
+    Parameters:
+        - alpha - trainable parameter that controls frequency
+        - beta - trainable parameter that controls magnitude
+    References:
+        - This activation function is a modified version based on this paper by Liu Ziyin, Tilman Hartwig, Masahito Ueda:
+        https://arxiv.org/abs/2006.08195
+    Examples:
+        >>> a1 = snakebeta(256)
+        >>> x = torch.randn(256)
+        >>> x = a1(x)
+    '''
+    def __init__(self, in_features, alpha=1.0, alpha_trainable=True, alpha_logscale=False):
+        '''
+        Initialization.
+        INPUT:
+            - in_features: shape of the input
+            - alpha - trainable parameter that controls frequency
+            - beta - trainable parameter that controls magnitude
+            alpha is initialized to 1 by default, higher values = higher-frequency.
+            beta is initialized to 1 by default, higher values = higher-magnitude.
+            alpha will be trained along with the rest of your model.
+        '''
+        super(SnakeBeta, self).__init__()
+        self.in_features = in_features
+
+        # initialize alpha
+        self.alpha_logscale = alpha_logscale
+        if self.alpha_logscale:
+            self.alpha = Parameter(torch.empty(in_features))
+            self.beta = Parameter(torch.empty(in_features))
+        else:
+            self.alpha = Parameter(torch.empty(in_features))
+            self.beta = Parameter(torch.empty(in_features))
+
+        self.alpha.requires_grad = alpha_trainable
+        self.beta.requires_grad = alpha_trainable
+
+        self.no_div_by_zero = 0.000000001
+
+    def forward(self, x):
+        '''
+        Forward pass of the function.
+        Applies the function to the input elementwise.
+        SnakeBeta ∶= x + 1/b * sin^2 (xa)
+        '''
+        alpha = comfy.model_management.cast_to(self.alpha, dtype=x.dtype, device=x.device).unsqueeze(0).unsqueeze(-1) # line up with x to [B, C, T]
+        beta = comfy.model_management.cast_to(self.beta, dtype=x.dtype, device=x.device).unsqueeze(0).unsqueeze(-1)
+        if self.alpha_logscale:
+            alpha = torch.exp(alpha)
+            beta = torch.exp(beta)
+        x = x + (1.0 / (beta + self.no_div_by_zero)) * pow(sin(x * alpha), 2)
+
+        return x

comfy/ldm/mmaudio/vae/alias_free_torch.py

@@ -0,0 +1,157 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+import math
+import comfy.model_management
+
+if 'sinc' in dir(torch):
+    sinc = torch.sinc
+else:
+    # This code is adopted from adefossez's julius.core.sinc under the MIT License
+    # https://adefossez.github.io/julius/julius/core.html
+    #   LICENSE is in incl_licenses directory.
+    def sinc(x: torch.Tensor):
+        """
+        Implementation of sinc, i.e. sin(pi * x) / (pi * x)
+        __Warning__: Different to julius.sinc, the input is multiplied by `pi`!
+        """
+        return torch.where(x == 0,
+                           torch.tensor(1., device=x.device, dtype=x.dtype),
+                           torch.sin(math.pi * x) / math.pi / x)
+
+
+# This code is adopted from adefossez's julius.lowpass.LowPassFilters under the MIT License
+# https://adefossez.github.io/julius/julius/lowpass.html
+#   LICENSE is in incl_licenses directory.
+def kaiser_sinc_filter1d(cutoff, half_width, kernel_size): # return filter [1,1,kernel_size]
+    even = (kernel_size % 2 == 0)
+    half_size = kernel_size // 2
+
+    #For kaiser window
+    delta_f = 4 * half_width
+    A = 2.285 * (half_size - 1) * math.pi * delta_f + 7.95
+    if A > 50.:
+        beta = 0.1102 * (A - 8.7)
+    elif A >= 21.:
+        beta = 0.5842 * (A - 21)**0.4 + 0.07886 * (A - 21.)
+    else:
+        beta = 0.
+    window = torch.kaiser_window(kernel_size, beta=beta, periodic=False)
+
+    # ratio = 0.5/cutoff -> 2 * cutoff = 1 / ratio
+    if even:
+        time = (torch.arange(-half_size, half_size) + 0.5)
+    else:
+        time = torch.arange(kernel_size) - half_size
+    if cutoff == 0:
+        filter_ = torch.zeros_like(time)
+    else:
+        filter_ = 2 * cutoff * window * sinc(2 * cutoff * time)
+        # Normalize filter to have sum = 1, otherwise we will have a small leakage
+        # of the constant component in the input signal.
+        filter_ /= filter_.sum()
+        filter = filter_.view(1, 1, kernel_size)
+
+    return filter
+
+
+class LowPassFilter1d(nn.Module):
+    def __init__(self,
+                 cutoff=0.5,
+                 half_width=0.6,
+                 stride: int = 1,
+                 padding: bool = True,
+                 padding_mode: str = 'replicate',
+                 kernel_size: int = 12):
+        # kernel_size should be even number for stylegan3 setup,
+        # in this implementation, odd number is also possible.
+        super().__init__()
+        if cutoff < -0.:
+            raise ValueError("Minimum cutoff must be larger than zero.")
+        if cutoff > 0.5:
+            raise ValueError("A cutoff above 0.5 does not make sense.")
+        self.kernel_size = kernel_size
+        self.even = (kernel_size % 2 == 0)
+        self.pad_left = kernel_size // 2 - int(self.even)
+        self.pad_right = kernel_size // 2
+        self.stride = stride
+        self.padding = padding
+        self.padding_mode = padding_mode
+        filter = kaiser_sinc_filter1d(cutoff, half_width, kernel_size)
+        self.register_buffer("filter", filter)
+
+    #input [B, C, T]
+    def forward(self, x):
+        _, C, _ = x.shape
+
+        if self.padding:
+            x = F.pad(x, (self.pad_left, self.pad_right),
+                      mode=self.padding_mode)
+        out = F.conv1d(x, comfy.model_management.cast_to(self.filter.expand(C, -1, -1), dtype=x.dtype, device=x.device),
+                       stride=self.stride, groups=C)
+
+        return out
+
+
+class UpSample1d(nn.Module):
+    def __init__(self, ratio=2, kernel_size=None):
+        super().__init__()
+        self.ratio = ratio
+        self.kernel_size = int(6 * ratio // 2) * 2 if kernel_size is None else kernel_size
+        self.stride = ratio
+        self.pad = self.kernel_size // ratio - 1
+        self.pad_left = self.pad * self.stride + (self.kernel_size - self.stride) // 2
+        self.pad_right = self.pad * self.stride + (self.kernel_size - self.stride + 1) // 2
+        filter = kaiser_sinc_filter1d(cutoff=0.5 / ratio,
+                                      half_width=0.6 / ratio,
+                                      kernel_size=self.kernel_size)
+        self.register_buffer("filter", filter)
+
+    # x: [B, C, T]
+    def forward(self, x):
+        _, C, _ = x.shape
+
+        x = F.pad(x, (self.pad, self.pad), mode='replicate')
+        x = self.ratio * F.conv_transpose1d(
+            x, comfy.model_management.cast_to(self.filter.expand(C, -1, -1), dtype=x.dtype, device=x.device), stride=self.stride, groups=C)
+        x = x[..., self.pad_left:-self.pad_right]
+
+        return x
+
+
+class DownSample1d(nn.Module):
+    def __init__(self, ratio=2, kernel_size=None):
+        super().__init__()
+        self.ratio = ratio
+        self.kernel_size = int(6 * ratio // 2) * 2 if kernel_size is None else kernel_size
+        self.lowpass = LowPassFilter1d(cutoff=0.5 / ratio,
+                                       half_width=0.6 / ratio,
+                                       stride=ratio,
+                                       kernel_size=self.kernel_size)
+
+    def forward(self, x):
+        xx = self.lowpass(x)
+
+        return xx
+
+class Activation1d(nn.Module):
+    def __init__(self,
+                 activation,
+                 up_ratio: int = 2,
+                 down_ratio: int = 2,
+                 up_kernel_size: int = 12,
+                 down_kernel_size: int = 12):
+        super().__init__()
+        self.up_ratio = up_ratio
+        self.down_ratio = down_ratio
+        self.act = activation
+        self.upsample = UpSample1d(up_ratio, up_kernel_size)
+        self.downsample = DownSample1d(down_ratio, down_kernel_size)
+
+    # x: [B,C,T]
+    def forward(self, x):
+        x = self.upsample(x)
+        x = self.act(x)
+        x = self.downsample(x)
+
+        return x

comfy/ldm/mmaudio/vae/autoencoder.py

@@ -0,0 +1,156 @@
+from typing import Literal
+
+import torch
+import torch.nn as nn
+
+from .distributions import DiagonalGaussianDistribution
+from .vae import VAE_16k
+from .bigvgan import BigVGANVocoder
+import logging
+
+try:
+    import torchaudio
+except:
+    logging.warning("torchaudio missing, MMAudio VAE model will be broken")
+
+def dynamic_range_compression_torch(x, C=1, clip_val=1e-5, *, norm_fn):
+    return norm_fn(torch.clamp(x, min=clip_val) * C)
+
+
+def spectral_normalize_torch(magnitudes, norm_fn):
+    output = dynamic_range_compression_torch(magnitudes, norm_fn=norm_fn)
+    return output
+
+class MelConverter(nn.Module):
+
+    def __init__(
+        self,
+        *,
+        sampling_rate: float,
+        n_fft: int,
+        num_mels: int,
+        hop_size: int,
+        win_size: int,
+        fmin: float,
+        fmax: float,
+        norm_fn,
+    ):
+        super().__init__()
+        self.sampling_rate = sampling_rate
+        self.n_fft = n_fft
+        self.num_mels = num_mels
+        self.hop_size = hop_size
+        self.win_size = win_size
+        self.fmin = fmin
+        self.fmax = fmax
+        self.norm_fn = norm_fn
+
+        # mel = librosa_mel_fn(sr=self.sampling_rate,
+        #                      n_fft=self.n_fft,
+        #                      n_mels=self.num_mels,
+        #                      fmin=self.fmin,
+        #                      fmax=self.fmax)
+        # mel_basis = torch.from_numpy(mel).float()
+        mel_basis = torch.empty((num_mels, 1 + n_fft // 2))
+        hann_window = torch.hann_window(self.win_size)
+
+        self.register_buffer('mel_basis', mel_basis)
+        self.register_buffer('hann_window', hann_window)
+
+    @property
+    def device(self):
+        return self.mel_basis.device
+
+    def forward(self, waveform: torch.Tensor, center: bool = False) -> torch.Tensor:
+        waveform = waveform.clamp(min=-1., max=1.).to(self.device)
+
+        waveform = torch.nn.functional.pad(
+            waveform.unsqueeze(1),
+            [int((self.n_fft - self.hop_size) / 2),
+             int((self.n_fft - self.hop_size) / 2)],
+            mode='reflect')
+        waveform = waveform.squeeze(1)
+
+        spec = torch.stft(waveform,
+                          self.n_fft,
+                          hop_length=self.hop_size,
+                          win_length=self.win_size,
+                          window=self.hann_window,
+                          center=center,
+                          pad_mode='reflect',
+                          normalized=False,
+                          onesided=True,
+                          return_complex=True)
+
+        spec = torch.view_as_real(spec)
+        spec = torch.sqrt(spec.pow(2).sum(-1) + (1e-9))
+        spec = torch.matmul(self.mel_basis, spec)
+        spec = spectral_normalize_torch(spec, self.norm_fn)
+
+        return spec
+
+class AudioAutoencoder(nn.Module):
+
+    def __init__(
+        self,
+        *,
+        # ckpt_path: str,
+        mode=Literal['16k', '44k'],
+        need_vae_encoder: bool = True,
+    ):
+        super().__init__()
+
+        assert mode == "16k", "Only 16k mode is supported currently."
+        self.mel_converter = MelConverter(sampling_rate=16_000,
+                            n_fft=1024,
+                            num_mels=80,
+                            hop_size=256,
+                            win_size=1024,
+                            fmin=0,
+                            fmax=8_000,
+                            norm_fn=torch.log10)
+
+        self.vae = VAE_16k().eval()
+
+        bigvgan_config = {
+            "resblock": "1",
+            "num_mels": 80,
+            "upsample_rates": [4, 4, 2, 2, 2, 2],
+            "upsample_kernel_sizes": [8, 8, 4, 4, 4, 4],
+            "upsample_initial_channel": 1536,
+            "resblock_kernel_sizes": [3, 7, 11],
+            "resblock_dilation_sizes": [
+                [1, 3, 5],
+                [1, 3, 5],
+                [1, 3, 5],
+            ],
+            "activation": "snakebeta",
+            "snake_logscale": True,
+        }
+
+        self.vocoder = BigVGANVocoder(
+            bigvgan_config
+        ).eval()
+
+    @torch.inference_mode()
+    def encode_audio(self, x) -> DiagonalGaussianDistribution:
+        # x: (B * L)
+        mel = self.mel_converter(x)
+        dist = self.vae.encode(mel)
+
+        return dist
+
+    @torch.no_grad()
+    def decode(self, z):
+        mel_decoded = self.vae.decode(z)
+        audio = self.vocoder(mel_decoded)
+
+        audio = torchaudio.functional.resample(audio, 16000, 44100)
+        return audio
+
+    @torch.no_grad()
+    def encode(self, audio):
+        audio = audio.mean(dim=1)
+        audio = torchaudio.functional.resample(audio, 44100, 16000)
+        dist = self.encode_audio(audio)
+        return dist.mean

comfy/ldm/mmaudio/vae/bigvgan.py

@@ -0,0 +1,219 @@
+# Copyright (c) 2022 NVIDIA CORPORATION.
+#   Licensed under the MIT license.
+
+# Adapted from https://github.com/jik876/hifi-gan under the MIT license.
+#   LICENSE is in incl_licenses directory.
+
+import torch
+import torch.nn as nn
+from types import SimpleNamespace
+from . import activations
+from .alias_free_torch import Activation1d
+import comfy.ops
+ops = comfy.ops.disable_weight_init
+
+def get_padding(kernel_size, dilation=1):
+    return int((kernel_size * dilation - dilation) / 2)
+
+class AMPBlock1(torch.nn.Module):
+
+    def __init__(self, h, channels, kernel_size=3, dilation=(1, 3, 5), activation=None):
+        super(AMPBlock1, self).__init__()
+        self.h = h
+
+        self.convs1 = nn.ModuleList([
+                ops.Conv1d(channels,
+                       channels,
+                       kernel_size,
+                       1,
+                       dilation=dilation[0],
+                       padding=get_padding(kernel_size, dilation[0])),
+                ops.Conv1d(channels,
+                       channels,
+                       kernel_size,
+                       1,
+                       dilation=dilation[1],
+                       padding=get_padding(kernel_size, dilation[1])),
+                ops.Conv1d(channels,
+                       channels,
+                       kernel_size,
+                       1,
+                       dilation=dilation[2],
+                       padding=get_padding(kernel_size, dilation[2]))
+        ])
+
+        self.convs2 = nn.ModuleList([
+                ops.Conv1d(channels,
+                       channels,
+                       kernel_size,
+                       1,
+                       dilation=1,
+                       padding=get_padding(kernel_size, 1)),
+                ops.Conv1d(channels,
+                       channels,
+                       kernel_size,
+                       1,
+                       dilation=1,
+                       padding=get_padding(kernel_size, 1)),
+                ops.Conv1d(channels,
+                       channels,
+                       kernel_size,
+                       1,
+                       dilation=1,
+                       padding=get_padding(kernel_size, 1))
+        ])
+
+        self.num_layers = len(self.convs1) + len(self.convs2)  # total number of conv layers
+
+        if activation == 'snake':  # periodic nonlinearity with snake function and anti-aliasing
+            self.activations = nn.ModuleList([
+                Activation1d(
+                    activation=activations.Snake(channels, alpha_logscale=h.snake_logscale))
+                for _ in range(self.num_layers)
+            ])
+        elif activation == 'snakebeta':  # periodic nonlinearity with snakebeta function and anti-aliasing
+            self.activations = nn.ModuleList([
+                Activation1d(
+                    activation=activations.SnakeBeta(channels, alpha_logscale=h.snake_logscale))
+                for _ in range(self.num_layers)
+            ])
+        else:
+            raise NotImplementedError(
+                "activation incorrectly specified. check the config file and look for 'activation'."
+            )
+
+    def forward(self, x):
+        acts1, acts2 = self.activations[::2], self.activations[1::2]
+        for c1, c2, a1, a2 in zip(self.convs1, self.convs2, acts1, acts2):
+            xt = a1(x)
+            xt = c1(xt)
+            xt = a2(xt)
+            xt = c2(xt)
+            x = xt + x
+
+        return x
+
+
+class AMPBlock2(torch.nn.Module):
+
+    def __init__(self, h, channels, kernel_size=3, dilation=(1, 3), activation=None):
+        super(AMPBlock2, self).__init__()
+        self.h = h
+
+        self.convs = nn.ModuleList([
+                ops.Conv1d(channels,
+                       channels,
+                       kernel_size,
+                       1,
+                       dilation=dilation[0],
+                       padding=get_padding(kernel_size, dilation[0])),
+                ops.Conv1d(channels,
+                       channels,
+                       kernel_size,
+                       1,
+                       dilation=dilation[1],
+                       padding=get_padding(kernel_size, dilation[1]))
+        ])
+
+        self.num_layers = len(self.convs)  # total number of conv layers
+
+        if activation == 'snake':  # periodic nonlinearity with snake function and anti-aliasing
+            self.activations = nn.ModuleList([
+                Activation1d(
+                    activation=activations.Snake(channels, alpha_logscale=h.snake_logscale))
+                for _ in range(self.num_layers)
+            ])
+        elif activation == 'snakebeta':  # periodic nonlinearity with snakebeta function and anti-aliasing
+            self.activations = nn.ModuleList([
+                Activation1d(
+                    activation=activations.SnakeBeta(channels, alpha_logscale=h.snake_logscale))
+                for _ in range(self.num_layers)
+            ])
+        else:
+            raise NotImplementedError(
+                "activation incorrectly specified. check the config file and look for 'activation'."
+            )
+
+    def forward(self, x):
+        for c, a in zip(self.convs, self.activations):
+            xt = a(x)
+            xt = c(xt)
+            x = xt + x
+
+        return x
+
+
+class BigVGANVocoder(torch.nn.Module):
+    # this is our main BigVGAN model. Applies anti-aliased periodic activation for resblocks.
+    def __init__(self, h):
+        super().__init__()
+        if isinstance(h, dict):
+            h = SimpleNamespace(**h)
+        self.h = h
+
+        self.num_kernels = len(h.resblock_kernel_sizes)
+        self.num_upsamples = len(h.upsample_rates)
+
+        # pre conv
+        self.conv_pre = ops.Conv1d(h.num_mels, h.upsample_initial_channel, 7, 1, padding=3)
+
+        # define which AMPBlock to use. BigVGAN uses AMPBlock1 as default
+        resblock = AMPBlock1 if h.resblock == '1' else AMPBlock2
+
+        # transposed conv-based upsamplers. does not apply anti-aliasing
+        self.ups = nn.ModuleList()
+        for i, (u, k) in enumerate(zip(h.upsample_rates, h.upsample_kernel_sizes)):
+            self.ups.append(
+                nn.ModuleList([
+                        ops.ConvTranspose1d(h.upsample_initial_channel // (2**i),
+                                        h.upsample_initial_channel // (2**(i + 1)),
+                                        k,
+                                        u,
+                                        padding=(k - u) // 2)
+                ]))
+
+        # residual blocks using anti-aliased multi-periodicity composition modules (AMP)
+        self.resblocks = nn.ModuleList()
+        for i in range(len(self.ups)):
+            ch = h.upsample_initial_channel // (2**(i + 1))
+            for j, (k, d) in enumerate(zip(h.resblock_kernel_sizes, h.resblock_dilation_sizes)):
+                self.resblocks.append(resblock(h, ch, k, d, activation=h.activation))
+
+        # post conv
+        if h.activation == "snake":  # periodic nonlinearity with snake function and anti-aliasing
+            activation_post = activations.Snake(ch, alpha_logscale=h.snake_logscale)
+            self.activation_post = Activation1d(activation=activation_post)
+        elif h.activation == "snakebeta":  # periodic nonlinearity with snakebeta function and anti-aliasing
+            activation_post = activations.SnakeBeta(ch, alpha_logscale=h.snake_logscale)
+            self.activation_post = Activation1d(activation=activation_post)
+        else:
+            raise NotImplementedError(
+                "activation incorrectly specified. check the config file and look for 'activation'."
+            )
+
+        self.conv_post = ops.Conv1d(ch, 1, 7, 1, padding=3)
+
+
+    def forward(self, x):
+        # pre conv
+        x = self.conv_pre(x)
+
+        for i in range(self.num_upsamples):
+            # upsampling
+            for i_up in range(len(self.ups[i])):
+                x = self.ups[i][i_up](x)
+            # AMP blocks
+            xs = None
+            for j in range(self.num_kernels):
+                if xs is None:
+                    xs = self.resblocks[i * self.num_kernels + j](x)
+                else:
+                    xs += self.resblocks[i * self.num_kernels + j](x)
+            x = xs / self.num_kernels
+
+        # post conv
+        x = self.activation_post(x)
+        x = self.conv_post(x)
+        x = torch.tanh(x)
+
+        return x

comfy/ldm/mmaudio/vae/distributions.py

@@ -0,0 +1,92 @@
+import torch
+import numpy as np
+
+
+class AbstractDistribution:
+    def sample(self):
+        raise NotImplementedError()
+
+    def mode(self):
+        raise NotImplementedError()
+
+
+class DiracDistribution(AbstractDistribution):
+    def __init__(self, value):
+        self.value = value
+
+    def sample(self):
+        return self.value
+
+    def mode(self):
+        return self.value
+
+
+class DiagonalGaussianDistribution(object):
+    def __init__(self, parameters, deterministic=False):
+        self.parameters = parameters
+        self.mean, self.logvar = torch.chunk(parameters, 2, dim=1)
+        self.logvar = torch.clamp(self.logvar, -30.0, 20.0)
+        self.deterministic = deterministic
+        self.std = torch.exp(0.5 * self.logvar)
+        self.var = torch.exp(self.logvar)
+        if self.deterministic:
+            self.var = self.std = torch.zeros_like(self.mean, device=self.parameters.device)
+
+    def sample(self):
+        x = self.mean + self.std * torch.randn(self.mean.shape, device=self.parameters.device)
+        return x
+
+    def kl(self, other=None):
+        if self.deterministic:
+            return torch.Tensor([0.])
+        else:
+            if other is None:
+                return 0.5 * torch.sum(torch.pow(self.mean, 2)
+                                       + self.var - 1.0 - self.logvar,
+                                       dim=[1, 2, 3])
+            else:
+                return 0.5 * torch.sum(
+                    torch.pow(self.mean - other.mean, 2) / other.var
+                    + self.var / other.var - 1.0 - self.logvar + other.logvar,
+                    dim=[1, 2, 3])
+
+    def nll(self, sample, dims=[1,2,3]):
+        if self.deterministic:
+            return torch.Tensor([0.])
+        logtwopi = np.log(2.0 * np.pi)
+        return 0.5 * torch.sum(
+            logtwopi + self.logvar + torch.pow(sample - self.mean, 2) / self.var,
+            dim=dims)
+
+    def mode(self):
+        return self.mean
+
+
+def normal_kl(mean1, logvar1, mean2, logvar2):
+    """
+    source: https://github.com/openai/guided-diffusion/blob/27c20a8fab9cb472df5d6bdd6c8d11c8f430b924/guided_diffusion/losses.py#L12
+    Compute the KL divergence between two gaussians.
+    Shapes are automatically broadcasted, so batches can be compared to
+    scalars, among other use cases.
+    """
+    tensor = None
+    for obj in (mean1, logvar1, mean2, logvar2):
+        if isinstance(obj, torch.Tensor):
+            tensor = obj
+            break
+    assert tensor is not None, "at least one argument must be a Tensor"
+
+    # Force variances to be Tensors. Broadcasting helps convert scalars to
+    # Tensors, but it does not work for torch.exp().
+    logvar1, logvar2 = [
+        x if isinstance(x, torch.Tensor) else torch.tensor(x).to(tensor)
+        for x in (logvar1, logvar2)
+    ]
+
+    return 0.5 * (
+        -1.0
+        + logvar2
+        - logvar1
+        + torch.exp(logvar1 - logvar2)
+        + ((mean1 - mean2) ** 2) * torch.exp(-logvar2)
+    )

comfy/ldm/mmaudio/vae/vae.py

@@ -0,0 +1,358 @@
+import logging
+from typing import Optional
+
+import torch
+import torch.nn as nn
+
+from .vae_modules import (AttnBlock1D, Downsample1D, ResnetBlock1D,
+                                                 Upsample1D, nonlinearity)
+from .distributions import DiagonalGaussianDistribution
+
+import comfy.ops
+ops = comfy.ops.disable_weight_init
+
+log = logging.getLogger()
+
+DATA_MEAN_80D = [
+    -1.6058, -1.3676, -1.2520, -1.2453, -1.2078, -1.2224, -1.2419, -1.2439, -1.2922, -1.2927,
+    -1.3170, -1.3543, -1.3401, -1.3836, -1.3907, -1.3912, -1.4313, -1.4152, -1.4527, -1.4728,
+    -1.4568, -1.5101, -1.5051, -1.5172, -1.5623, -1.5373, -1.5746, -1.5687, -1.6032, -1.6131,
+    -1.6081, -1.6331, -1.6489, -1.6489, -1.6700, -1.6738, -1.6953, -1.6969, -1.7048, -1.7280,
+    -1.7361, -1.7495, -1.7658, -1.7814, -1.7889, -1.8064, -1.8221, -1.8377, -1.8417, -1.8643,
+    -1.8857, -1.8929, -1.9173, -1.9379, -1.9531, -1.9673, -1.9824, -2.0042, -2.0215, -2.0436,
+    -2.0766, -2.1064, -2.1418, -2.1855, -2.2319, -2.2767, -2.3161, -2.3572, -2.3954, -2.4282,
+    -2.4659, -2.5072, -2.5552, -2.6074, -2.6584, -2.7107, -2.7634, -2.8266, -2.8981, -2.9673
+]
+
+DATA_STD_80D = [
+    1.0291, 1.0411, 1.0043, 0.9820, 0.9677, 0.9543, 0.9450, 0.9392, 0.9343, 0.9297, 0.9276, 0.9263,
+    0.9242, 0.9254, 0.9232, 0.9281, 0.9263, 0.9315, 0.9274, 0.9247, 0.9277, 0.9199, 0.9188, 0.9194,
+    0.9160, 0.9161, 0.9146, 0.9161, 0.9100, 0.9095, 0.9145, 0.9076, 0.9066, 0.9095, 0.9032, 0.9043,
+    0.9038, 0.9011, 0.9019, 0.9010, 0.8984, 0.8983, 0.8986, 0.8961, 0.8962, 0.8978, 0.8962, 0.8973,
+    0.8993, 0.8976, 0.8995, 0.9016, 0.8982, 0.8972, 0.8974, 0.8949, 0.8940, 0.8947, 0.8936, 0.8939,
+    0.8951, 0.8956, 0.9017, 0.9167, 0.9436, 0.9690, 1.0003, 1.0225, 1.0381, 1.0491, 1.0545, 1.0604,
+    1.0761, 1.0929, 1.1089, 1.1196, 1.1176, 1.1156, 1.1117, 1.1070
+]
+
+DATA_MEAN_128D = [
+    -3.3462, -2.6723, -2.4893, -2.3143, -2.2664, -2.3317, -2.1802, -2.4006, -2.2357, -2.4597,
+    -2.3717, -2.4690, -2.5142, -2.4919, -2.6610, -2.5047, -2.7483, -2.5926, -2.7462, -2.7033,
+    -2.7386, -2.8112, -2.7502, -2.9594, -2.7473, -3.0035, -2.8891, -2.9922, -2.9856, -3.0157,
+    -3.1191, -2.9893, -3.1718, -3.0745, -3.1879, -3.2310, -3.1424, -3.2296, -3.2791, -3.2782,
+    -3.2756, -3.3134, -3.3509, -3.3750, -3.3951, -3.3698, -3.4505, -3.4509, -3.5089, -3.4647,
+    -3.5536, -3.5788, -3.5867, -3.6036, -3.6400, -3.6747, -3.7072, -3.7279, -3.7283, -3.7795,
+    -3.8259, -3.8447, -3.8663, -3.9182, -3.9605, -3.9861, -4.0105, -4.0373, -4.0762, -4.1121,
+    -4.1488, -4.1874, -4.2461, -4.3170, -4.3639, -4.4452, -4.5282, -4.6297, -4.7019, -4.7960,
+    -4.8700, -4.9507, -5.0303, -5.0866, -5.1634, -5.2342, -5.3242, -5.4053, -5.4927, -5.5712,
+    -5.6464, -5.7052, -5.7619, -5.8410, -5.9188, -6.0103, -6.0955, -6.1673, -6.2362, -6.3120,
+    -6.3926, -6.4797, -6.5565, -6.6511, -6.8130, -6.9961, -7.1275, -7.2457, -7.3576, -7.4663,
+    -7.6136, -7.7469, -7.8815, -8.0132, -8.1515, -8.3071, -8.4722, -8.7418, -9.3975, -9.6628,
+    -9.7671, -9.8863, -9.9992, -10.0860, -10.1709, -10.5418, -11.2795, -11.3861
+]
+
+DATA_STD_128D = [
+    2.3804, 2.4368, 2.3772, 2.3145, 2.2803, 2.2510, 2.2316, 2.2083, 2.1996, 2.1835, 2.1769, 2.1659,
+    2.1631, 2.1618, 2.1540, 2.1606, 2.1571, 2.1567, 2.1612, 2.1579, 2.1679, 2.1683, 2.1634, 2.1557,
+    2.1668, 2.1518, 2.1415, 2.1449, 2.1406, 2.1350, 2.1313, 2.1415, 2.1281, 2.1352, 2.1219, 2.1182,
+    2.1327, 2.1195, 2.1137, 2.1080, 2.1179, 2.1036, 2.1087, 2.1036, 2.1015, 2.1068, 2.0975, 2.0991,
+    2.0902, 2.1015, 2.0857, 2.0920, 2.0893, 2.0897, 2.0910, 2.0881, 2.0925, 2.0873, 2.0960, 2.0900,
+    2.0957, 2.0958, 2.0978, 2.0936, 2.0886, 2.0905, 2.0845, 2.0855, 2.0796, 2.0840, 2.0813, 2.0817,
+    2.0838, 2.0840, 2.0917, 2.1061, 2.1431, 2.1976, 2.2482, 2.3055, 2.3700, 2.4088, 2.4372, 2.4609,
+    2.4731, 2.4847, 2.5072, 2.5451, 2.5772, 2.6147, 2.6529, 2.6596, 2.6645, 2.6726, 2.6803, 2.6812,
+    2.6899, 2.6916, 2.6931, 2.6998, 2.7062, 2.7262, 2.7222, 2.7158, 2.7041, 2.7485, 2.7491, 2.7451,
+    2.7485, 2.7233, 2.7297, 2.7233, 2.7145, 2.6958, 2.6788, 2.6439, 2.6007, 2.4786, 2.2469, 2.1877,
+    2.1392, 2.0717, 2.0107, 1.9676, 1.9140, 1.7102, 0.9101, 0.7164
+]
+
+
+class VAE(nn.Module):
+
+    def __init__(
+        self,
+        *,
+        data_dim: int,
+        embed_dim: int,
+        hidden_dim: int,
+    ):
+        super().__init__()
+
+        if data_dim == 80:
+            self.data_mean = nn.Buffer(torch.tensor(DATA_MEAN_80D, dtype=torch.float32))
+            self.data_std = nn.Buffer(torch.tensor(DATA_STD_80D, dtype=torch.float32))
+        elif data_dim == 128:
+            self.data_mean = nn.Buffer(torch.tensor(DATA_MEAN_128D, dtype=torch.float32))
+            self.data_std = nn.Buffer(torch.tensor(DATA_STD_128D, dtype=torch.float32))
+
+        self.data_mean = self.data_mean.view(1, -1, 1)
+        self.data_std = self.data_std.view(1, -1, 1)
+
+        self.encoder = Encoder1D(
+            dim=hidden_dim,
+            ch_mult=(1, 2, 4),
+            num_res_blocks=2,
+            attn_layers=[3],
+            down_layers=[0],
+            in_dim=data_dim,
+            embed_dim=embed_dim,
+        )
+        self.decoder = Decoder1D(
+            dim=hidden_dim,
+            ch_mult=(1, 2, 4),
+            num_res_blocks=2,
+            attn_layers=[3],
+            down_layers=[0],
+            in_dim=data_dim,
+            out_dim=data_dim,
+            embed_dim=embed_dim,
+        )
+
+        self.embed_dim = embed_dim
+        # self.quant_conv = nn.Conv1d(2 * embed_dim, 2 * embed_dim, 1)
+        # self.post_quant_conv = nn.Conv1d(embed_dim, embed_dim, 1)
+
+        self.initialize_weights()
+
+    def initialize_weights(self):
+        pass
+
+    def encode(self, x: torch.Tensor, normalize: bool = True) -> DiagonalGaussianDistribution:
+        if normalize:
+            x = self.normalize(x)
+        moments = self.encoder(x)
+        posterior = DiagonalGaussianDistribution(moments)
+        return posterior
+
+    def decode(self, z: torch.Tensor, unnormalize: bool = True) -> torch.Tensor:
+        dec = self.decoder(z)
+        if unnormalize:
+            dec = self.unnormalize(dec)
+        return dec
+
+    def normalize(self, x: torch.Tensor) -> torch.Tensor:
+        return (x - comfy.model_management.cast_to(self.data_mean, dtype=x.dtype, device=x.device)) / comfy.model_management.cast_to(self.data_std, dtype=x.dtype, device=x.device)
+
+    def unnormalize(self, x: torch.Tensor) -> torch.Tensor:
+        return x * comfy.model_management.cast_to(self.data_std, dtype=x.dtype, device=x.device) + comfy.model_management.cast_to(self.data_mean, dtype=x.dtype, device=x.device)
+
+    def forward(
+        self,
+        x: torch.Tensor,
+        sample_posterior: bool = True,
+        rng: Optional[torch.Generator] = None,
+        normalize: bool = True,
+        unnormalize: bool = True,
+    ) -> tuple[torch.Tensor, DiagonalGaussianDistribution]:
+
+        posterior = self.encode(x, normalize=normalize)
+        if sample_posterior:
+            z = posterior.sample(rng)
+        else:
+            z = posterior.mode()
+        dec = self.decode(z, unnormalize=unnormalize)
+        return dec, posterior
+
+    def load_weights(self, src_dict) -> None:
+        self.load_state_dict(src_dict, strict=True)
+
+    @property
+    def device(self) -> torch.device:
+        return next(self.parameters()).device
+
+    def get_last_layer(self):
+        return self.decoder.conv_out.weight
+
+    def remove_weight_norm(self):
+        return self
+
+
+class Encoder1D(nn.Module):
+
+    def __init__(self,
+                 *,
+                 dim: int,
+                 ch_mult: tuple[int] = (1, 2, 4, 8),
+                 num_res_blocks: int,
+                 attn_layers: list[int] = [],
+                 down_layers: list[int] = [],
+                 resamp_with_conv: bool = True,
+                 in_dim: int,
+                 embed_dim: int,
+                 double_z: bool = True,
+                 kernel_size: int = 3,
+                 clip_act: float = 256.0):
+        super().__init__()
+        self.dim = dim
+        self.num_layers = len(ch_mult)
+        self.num_res_blocks = num_res_blocks
+        self.in_channels = in_dim
+        self.clip_act = clip_act
+        self.down_layers = down_layers
+        self.attn_layers = attn_layers
+        self.conv_in = ops.Conv1d(in_dim, self.dim, kernel_size=kernel_size, padding=kernel_size // 2, bias=False)
+
+        in_ch_mult = (1, ) + tuple(ch_mult)
+        self.in_ch_mult = in_ch_mult
+        # downsampling
+        self.down = nn.ModuleList()
+        for i_level in range(self.num_layers):
+            block = nn.ModuleList()
+            attn = nn.ModuleList()
+            block_in = dim * in_ch_mult[i_level]
+            block_out = dim * ch_mult[i_level]
+            for i_block in range(self.num_res_blocks):
+                block.append(
+                    ResnetBlock1D(in_dim=block_in,
+                                  out_dim=block_out,
+                                  kernel_size=kernel_size,
+                                  use_norm=True))
+                block_in = block_out
+                if i_level in attn_layers:
+                    attn.append(AttnBlock1D(block_in))
+            down = nn.Module()
+            down.block = block
+            down.attn = attn
+            if i_level in down_layers:
+                down.downsample = Downsample1D(block_in, resamp_with_conv)
+            self.down.append(down)
+
+        # middle
+        self.mid = nn.Module()
+        self.mid.block_1 = ResnetBlock1D(in_dim=block_in,
+                                         out_dim=block_in,
+                                         kernel_size=kernel_size,
+                                         use_norm=True)
+        self.mid.attn_1 = AttnBlock1D(block_in)
+        self.mid.block_2 = ResnetBlock1D(in_dim=block_in,
+                                         out_dim=block_in,
+                                         kernel_size=kernel_size,
+                                         use_norm=True)
+
+        # end
+        self.conv_out = ops.Conv1d(block_in,
+                                 2 * embed_dim if double_z else embed_dim,
+                                 kernel_size=kernel_size, padding=kernel_size // 2, bias=False)
+
+        self.learnable_gain = nn.Parameter(torch.zeros([]))
+
+    def forward(self, x):
+
+        # downsampling
+        h = self.conv_in(x)
+        for i_level in range(self.num_layers):
+            for i_block in range(self.num_res_blocks):
+                h = self.down[i_level].block[i_block](h)
+                if len(self.down[i_level].attn) > 0:
+                    h = self.down[i_level].attn[i_block](h)
+                h = h.clamp(-self.clip_act, self.clip_act)
+            if i_level in self.down_layers:
+                h = self.down[i_level].downsample(h)
+
+        # middle
+        h = self.mid.block_1(h)
+        h = self.mid.attn_1(h)
+        h = self.mid.block_2(h)
+        h = h.clamp(-self.clip_act, self.clip_act)
+
+        # end
+        h = nonlinearity(h)
+        h = self.conv_out(h) * (self.learnable_gain + 1)
+        return h
+
+
+class Decoder1D(nn.Module):
+
+    def __init__(self,
+                 *,
+                 dim: int,
+                 out_dim: int,
+                 ch_mult: tuple[int] = (1, 2, 4, 8),
+                 num_res_blocks: int,
+                 attn_layers: list[int] = [],
+                 down_layers: list[int] = [],
+                 kernel_size: int = 3,
+                 resamp_with_conv: bool = True,
+                 in_dim: int,
+                 embed_dim: int,
+                 clip_act: float = 256.0):
+        super().__init__()
+        self.ch = dim
+        self.num_layers = len(ch_mult)
+        self.num_res_blocks = num_res_blocks
+        self.in_channels = in_dim
+        self.clip_act = clip_act
+        self.down_layers = [i + 1 for i in down_layers]  # each downlayer add one
+
+        # compute in_ch_mult, block_in and curr_res at lowest res
+        block_in = dim * ch_mult[self.num_layers - 1]
+
+        # z to block_in
+        self.conv_in = ops.Conv1d(embed_dim, block_in, kernel_size=kernel_size, padding=kernel_size // 2, bias=False)
+
+        # middle
+        self.mid = nn.Module()
+        self.mid.block_1 = ResnetBlock1D(in_dim=block_in, out_dim=block_in, use_norm=True)
+        self.mid.attn_1 = AttnBlock1D(block_in)
+        self.mid.block_2 = ResnetBlock1D(in_dim=block_in, out_dim=block_in, use_norm=True)
+
+        # upsampling
+        self.up = nn.ModuleList()
+        for i_level in reversed(range(self.num_layers)):
+            block = nn.ModuleList()
+            attn = nn.ModuleList()
+            block_out = dim * ch_mult[i_level]
+            for i_block in range(self.num_res_blocks + 1):
+                block.append(ResnetBlock1D(in_dim=block_in, out_dim=block_out, use_norm=True))
+                block_in = block_out
+                if i_level in attn_layers:
+                    attn.append(AttnBlock1D(block_in))
+            up = nn.Module()
+            up.block = block
+            up.attn = attn
+            if i_level in self.down_layers:
+                up.upsample = Upsample1D(block_in, resamp_with_conv)
+            self.up.insert(0, up)  # prepend to get consistent order
+
+        # end
+        self.conv_out = ops.Conv1d(block_in, out_dim, kernel_size=kernel_size, padding=kernel_size // 2, bias=False)
+        self.learnable_gain = nn.Parameter(torch.zeros([]))
+
+    def forward(self, z):
+        # z to block_in
+        h = self.conv_in(z)
+
+        # middle
+        h = self.mid.block_1(h)
+        h = self.mid.attn_1(h)
+        h = self.mid.block_2(h)
+        h = h.clamp(-self.clip_act, self.clip_act)
+
+        # upsampling
+        for i_level in reversed(range(self.num_layers)):
+            for i_block in range(self.num_res_blocks + 1):
+                h = self.up[i_level].block[i_block](h)
+                if len(self.up[i_level].attn) > 0:
+                    h = self.up[i_level].attn[i_block](h)
+                h = h.clamp(-self.clip_act, self.clip_act)
+            if i_level in self.down_layers:
+                h = self.up[i_level].upsample(h)
+
+        h = nonlinearity(h)
+        h = self.conv_out(h) * (self.learnable_gain + 1)
+        return h
+
+
+def VAE_16k(**kwargs) -> VAE:
+    return VAE(data_dim=80, embed_dim=20, hidden_dim=384, **kwargs)
+
+
+def VAE_44k(**kwargs) -> VAE:
+    return VAE(data_dim=128, embed_dim=40, hidden_dim=512, **kwargs)
+
+
+def get_my_vae(name: str, **kwargs) -> VAE:
+    if name == '16k':
+        return VAE_16k(**kwargs)
+    if name == '44k':
+        return VAE_44k(**kwargs)
+    raise ValueError(f'Unknown model: {name}')
+

comfy/ldm/mmaudio/vae/vae_modules.py

@@ -0,0 +1,121 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+from comfy.ldm.modules.diffusionmodules.model import vae_attention
+import math
+import comfy.ops
+ops = comfy.ops.disable_weight_init
+
+def nonlinearity(x):
+    # swish
+    return torch.nn.functional.silu(x) / 0.596
+
+def mp_sum(a, b, t=0.5):
+    return a.lerp(b, t) / math.sqrt((1 - t)**2 + t**2)
+
+def normalize(x, dim=None, eps=1e-4):
+    if dim is None:
+        dim = list(range(1, x.ndim))
+    norm = torch.linalg.vector_norm(x, dim=dim, keepdim=True, dtype=torch.float32)
+    norm = torch.add(eps, norm, alpha=math.sqrt(norm.numel() / x.numel()))
+    return x / norm.to(x.dtype)
+
+class ResnetBlock1D(nn.Module):
+
+    def __init__(self, *, in_dim, out_dim=None, conv_shortcut=False, kernel_size=3, use_norm=True):
+        super().__init__()
+        self.in_dim = in_dim
+        out_dim = in_dim if out_dim is None else out_dim
+        self.out_dim = out_dim
+        self.use_conv_shortcut = conv_shortcut
+        self.use_norm = use_norm
+
+        self.conv1 = ops.Conv1d(in_dim, out_dim, kernel_size=kernel_size, padding=kernel_size // 2, bias=False)
+        self.conv2 = ops.Conv1d(out_dim, out_dim, kernel_size=kernel_size, padding=kernel_size // 2, bias=False)
+        if self.in_dim != self.out_dim:
+            if self.use_conv_shortcut:
+                self.conv_shortcut = ops.Conv1d(in_dim, out_dim, kernel_size=kernel_size, padding=kernel_size // 2, bias=False)
+            else:
+                self.nin_shortcut = ops.Conv1d(in_dim, out_dim, kernel_size=1, padding=0, bias=False)
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+
+        # pixel norm
+        if self.use_norm:
+            x = normalize(x, dim=1)
+
+        h = x
+        h = nonlinearity(h)
+        h = self.conv1(h)
+
+        h = nonlinearity(h)
+        h = self.conv2(h)
+
+        if self.in_dim != self.out_dim:
+            if self.use_conv_shortcut:
+                x = self.conv_shortcut(x)
+            else:
+                x = self.nin_shortcut(x)
+
+        return mp_sum(x, h, t=0.3)
+
+
+class AttnBlock1D(nn.Module):
+
+    def __init__(self, in_channels, num_heads=1):
+        super().__init__()
+        self.in_channels = in_channels
+
+        self.num_heads = num_heads
+        self.qkv = ops.Conv1d(in_channels, in_channels * 3, kernel_size=1, padding=0, bias=False)
+        self.proj_out = ops.Conv1d(in_channels, in_channels, kernel_size=1, padding=0, bias=False)
+        self.optimized_attention = vae_attention()
+
+    def forward(self, x):
+        h = x
+        y = self.qkv(h)
+        y = y.reshape(y.shape[0], -1, 3, y.shape[-1])
+        q, k, v = normalize(y, dim=1).unbind(2)
+
+        h = self.optimized_attention(q, k, v)
+        h = self.proj_out(h)
+
+        return mp_sum(x, h, t=0.3)
+
+
+class Upsample1D(nn.Module):
+
+    def __init__(self, in_channels, with_conv):
+        super().__init__()
+        self.with_conv = with_conv
+        if self.with_conv:
+            self.conv = ops.Conv1d(in_channels, in_channels, kernel_size=3, padding=1, bias=False)
+
+    def forward(self, x):
+        x = F.interpolate(x, scale_factor=2.0, mode='nearest-exact')  # support 3D tensor(B,C,T)
+        if self.with_conv:
+            x = self.conv(x)
+        return x
+
+
+class Downsample1D(nn.Module):
+
+    def __init__(self, in_channels, with_conv):
+        super().__init__()
+        self.with_conv = with_conv
+        if self.with_conv:
+            # no asymmetric padding in torch conv, must do it ourselves
+            self.conv1 = ops.Conv1d(in_channels, in_channels, kernel_size=1, padding=0, bias=False)
+            self.conv2 = ops.Conv1d(in_channels, in_channels, kernel_size=1, padding=0, bias=False)
+
+    def forward(self, x):
+
+        if self.with_conv:
+            x = self.conv1(x)
+
+        x = F.avg_pool1d(x, kernel_size=2, stride=2)
+
+        if self.with_conv:
+            x = self.conv2(x)
+
+        return x

comfy/ldm/wan/model.py

@@ -588,7 +588,7 @@ class WanModel(torch.nn.Module):
         x = self.unpatchify(x, grid_sizes)
         return x
 
-    def rope_encode(self, t, h, w, t_start=0, steps_t=None, steps_h=None, steps_w=None, device=None, dtype=None):
+    def rope_encode(self, t, h, w, t_start=0, steps_t=None, steps_h=None, steps_w=None, device=None, dtype=None, transformer_options={}):
         patch_size = self.patch_size
         t_len = ((t + (patch_size[0] // 2)) // patch_size[0])
         h_len = ((h + (patch_size[1] // 2)) // patch_size[1])
@@ -601,10 +601,22 @@ class WanModel(torch.nn.Module):
         if steps_w is None:
             steps_w = w_len
 
+        h_start = 0
+        w_start = 0
+        rope_options = transformer_options.get("rope_options", None)
+        if rope_options is not None:
+            t_len = (t_len - 1.0) * rope_options.get("scale_t", 1.0) + 1.0
+            h_len = (h_len - 1.0) * rope_options.get("scale_y", 1.0) + 1.0
+            w_len = (w_len - 1.0) * rope_options.get("scale_x", 1.0) + 1.0
+
+            t_start += rope_options.get("shift_t", 0.0)
+            h_start += rope_options.get("shift_y", 0.0)
+            w_start += rope_options.get("shift_x", 0.0)
+
         img_ids = torch.zeros((steps_t, steps_h, steps_w, 3), device=device, dtype=dtype)
         img_ids[:, :, :, 0] = img_ids[:, :, :, 0] + torch.linspace(t_start, t_start + (t_len - 1), steps=steps_t, device=device, dtype=dtype).reshape(-1, 1, 1)
-        img_ids[:, :, :, 1] = img_ids[:, :, :, 1] + torch.linspace(0, h_len - 1, steps=steps_h, device=device, dtype=dtype).reshape(1, -1, 1)
-        img_ids[:, :, :, 2] = img_ids[:, :, :, 2] + torch.linspace(0, w_len - 1, steps=steps_w, device=device, dtype=dtype).reshape(1, 1, -1)
+        img_ids[:, :, :, 1] = img_ids[:, :, :, 1] + torch.linspace(h_start, h_start + (h_len - 1), steps=steps_h, device=device, dtype=dtype).reshape(1, -1, 1)
+        img_ids[:, :, :, 2] = img_ids[:, :, :, 2] + torch.linspace(w_start, w_start + (w_len - 1), steps=steps_w, device=device, dtype=dtype).reshape(1, 1, -1)
         img_ids = img_ids.reshape(1, -1, img_ids.shape[-1])
 
         freqs = self.rope_embedder(img_ids).movedim(1, 2)
@@ -630,7 +642,7 @@ class WanModel(torch.nn.Module):
         if self.ref_conv is not None and "reference_latent" in kwargs:
             t_len += 1
 
-        freqs = self.rope_encode(t_len, h, w, device=x.device, dtype=x.dtype)
+        freqs = self.rope_encode(t_len, h, w, device=x.device, dtype=x.dtype, transformer_options=transformer_options)
         return self.forward_orig(x, timestep, context, clip_fea=clip_fea, freqs=freqs, transformer_options=transformer_options, **kwargs)[:, :, :t, :h, :w]
 
     def unpatchify(self, x, grid_sizes):

comfy/ldm/wan/vae2_2.py

@@ -657,51 +657,51 @@ class WanVAE(nn.Module):
         )
 
     def encode(self, x):
-        self.clear_cache()
+        conv_idx = [0]
+        feat_map = [None] * count_conv3d(self.encoder)
         x = patchify(x, patch_size=2)
         t = x.shape[2]
         iter_ = 1 + (t - 1) // 4
         for i in range(iter_):
-            self._enc_conv_idx = [0]
+            conv_idx = [0]
             if i == 0:
                 out = self.encoder(
                     x[:, :, :1, :, :],
-                    feat_cache=self._enc_feat_map,
-                    feat_idx=self._enc_conv_idx,
+                    feat_cache=feat_map,
+                    feat_idx=conv_idx,
                 )
             else:
                 out_ = self.encoder(
                     x[:, :, 1 + 4 * (i - 1):1 + 4 * i, :, :],
-                    feat_cache=self._enc_feat_map,
-                    feat_idx=self._enc_conv_idx,
+                    feat_cache=feat_map,
+                    feat_idx=conv_idx,
                 )
                 out = torch.cat([out, out_], 2)
         mu, log_var = self.conv1(out).chunk(2, dim=1)
-        self.clear_cache()
         return mu
 
     def decode(self, z):
-        self.clear_cache()
+        conv_idx = [0]
+        feat_map = [None] * count_conv3d(self.decoder)
         iter_ = z.shape[2]
         x = self.conv2(z)
         for i in range(iter_):
-            self._conv_idx = [0]
+            conv_idx = [0]
             if i == 0:
                 out = self.decoder(
                     x[:, :, i:i + 1, :, :],
-                    feat_cache=self._feat_map,
-                    feat_idx=self._conv_idx,
+                    feat_cache=feat_map,
+                    feat_idx=conv_idx,
                     first_chunk=True,
                 )
             else:
                 out_ = self.decoder(
                     x[:, :, i:i + 1, :, :],
-                    feat_cache=self._feat_map,
-                    feat_idx=self._conv_idx,
+                    feat_cache=feat_map,
+                    feat_idx=conv_idx,
                 )
                 out = torch.cat([out, out_], 2)
         out = unpatchify(out, patch_size=2)
-        self.clear_cache()
         return out
 
     def reparameterize(self, mu, log_var):
@@ -715,12 +715,3 @@ class WanVAE(nn.Module):
             return mu
         std = torch.exp(0.5 * log_var.clamp(-30.0, 20.0))
         return mu + std * torch.randn_like(std)
-
-    def clear_cache(self):
-        self._conv_num = count_conv3d(self.decoder)
-        self._conv_idx = [0]
-        self._feat_map = [None] * self._conv_num
-        # cache encode
-        self._enc_conv_num = count_conv3d(self.encoder)
-        self._enc_conv_idx = [0]
-        self._enc_feat_map = [None] * self._enc_conv_num

comfy/model_base.py

@@ -134,10 +134,11 @@ class BaseModel(torch.nn.Module):
         if not unet_config.get("disable_unet_model_creation", False):
             if model_config.custom_operations is None:
                 fp8 = model_config.optimizations.get("fp8", False)
-                operations = comfy.ops.pick_operations(unet_config.get("dtype", None), self.manual_cast_dtype, fp8_optimizations=fp8, scaled_fp8=model_config.scaled_fp8)
+                operations = comfy.ops.pick_operations(unet_config.get("dtype", None), self.manual_cast_dtype, fp8_optimizations=fp8, scaled_fp8=model_config.scaled_fp8, model_config=model_config)
             else:
                 operations = model_config.custom_operations
             self.diffusion_model = unet_model(**unet_config, device=device, operations=operations)
+            self.diffusion_model.eval()
             if comfy.model_management.force_channels_last():
                 self.diffusion_model.to(memory_format=torch.channels_last)
                 logging.debug("using channels last mode for diffusion model")
@@ -196,8 +197,14 @@ class BaseModel(torch.nn.Module):
             extra_conds[o] = extra
 
         t = self.process_timestep(t, x=x, **extra_conds)
-        model_output = self.diffusion_model(xc, t, context=context, control=control, transformer_options=transformer_options, **extra_conds).float()
-        return self.model_sampling.calculate_denoised(sigma, model_output, x)
+        if "latent_shapes" in extra_conds:
+            xc = utils.unpack_latents(xc, extra_conds.pop("latent_shapes"))
+
+        model_output = self.diffusion_model(xc, t, context=context, control=control, transformer_options=transformer_options, **extra_conds)
+        if len(model_output) > 1 and not torch.is_tensor(model_output):
+            model_output, _ = utils.pack_latents(model_output)
+
+        return self.model_sampling.calculate_denoised(sigma, model_output.float(), x)
 
     def process_timestep(self, timestep, **kwargs):
         return timestep
@@ -326,6 +333,14 @@ class BaseModel(torch.nn.Module):
         if self.model_config.scaled_fp8 is not None:
             unet_state_dict["scaled_fp8"] = torch.tensor([], dtype=self.model_config.scaled_fp8)
 
+        # Save mixed precision metadata
+        if hasattr(self.model_config, 'layer_quant_config') and self.model_config.layer_quant_config:
+            metadata = {
+                "format_version": "1.0",
+                "layers": self.model_config.layer_quant_config
+            }
+            unet_state_dict["_quantization_metadata"] = metadata
+
         unet_state_dict = self.model_config.process_unet_state_dict_for_saving(unet_state_dict)
 
         if self.model_type == ModelType.V_PREDICTION:
@@ -669,7 +684,6 @@ class Lotus(BaseModel):
 class StableCascade_C(BaseModel):
     def __init__(self, model_config, model_type=ModelType.STABLE_CASCADE, device=None):
         super().__init__(model_config, model_type, device=device, unet_model=StageC)
-        self.diffusion_model.eval().requires_grad_(False)
 
     def extra_conds(self, **kwargs):
         out = {}
@@ -698,7 +712,6 @@ class StableCascade_C(BaseModel):
 class StableCascade_B(BaseModel):
     def __init__(self, model_config, model_type=ModelType.STABLE_CASCADE, device=None):
         super().__init__(model_config, model_type, device=device, unet_model=StageB)
-        self.diffusion_model.eval().requires_grad_(False)
 
     def extra_conds(self, **kwargs):
         out = {}

comfy/model_detection.py

@@ -6,6 +6,20 @@ import math
 import logging
 import torch
 
+
+def detect_layer_quantization(metadata):
+    quant_key = "_quantization_metadata"
+    if metadata is not None and quant_key in metadata:
+        quant_metadata = metadata.pop(quant_key)
+        quant_metadata = json.loads(quant_metadata)
+        if isinstance(quant_metadata, dict) and "layers" in quant_metadata:
+            logging.info(f"Found quantization metadata (version {quant_metadata.get('format_version', 'unknown')})")
+            return quant_metadata["layers"]
+        else:
+            raise ValueError("Invalid quantization metadata format")
+    return None
+
+
 def count_blocks(state_dict_keys, prefix_string):
     count = 0
     while True:
@@ -213,7 +227,7 @@ def detect_unet_config(state_dict, key_prefix, metadata=None):
                 dit_config["nerf_mlp_ratio"] = 4
                 dit_config["nerf_depth"] = 4
                 dit_config["nerf_max_freqs"] = 8
-                dit_config["nerf_tile_size"] = 32
+                dit_config["nerf_tile_size"] = 512
                 dit_config["nerf_final_head_type"] = "conv" if f"{key_prefix}nerf_final_layer_conv.norm.scale" in state_dict_keys else "linear"
                 dit_config["nerf_embedder_dtype"] = torch.float32
         else:
@@ -701,6 +715,12 @@ def model_config_from_unet(state_dict, unet_key_prefix, use_base_if_no_match=Fal
         else:
             model_config.optimizations["fp8"] = True
 
+    # Detect per-layer quantization (mixed precision)
+    layer_quant_config = detect_layer_quantization(metadata)
+    if layer_quant_config:
+        model_config.layer_quant_config = layer_quant_config
+        logging.info(f"Detected mixed precision quantization: {len(layer_quant_config)} layers quantized")
+
     return model_config
 
 def unet_prefix_from_state_dict(state_dict):

comfy/model_management.py

@@ -89,6 +89,7 @@ if args.deterministic:
 
 directml_enabled = False
 if args.directml is not None:
+    logging.warning("WARNING: torch-directml barely works, is very slow, has not been updated in over 1 year and might be removed soon, please don't use it, there are better options.")
     import torch_directml
     directml_enabled = True
     device_index = args.directml
@@ -330,13 +331,21 @@ except:
 
 
 SUPPORT_FP8_OPS = args.supports_fp8_compute
+
+AMD_RDNA2_AND_OLDER_ARCH = ["gfx1030", "gfx1031", "gfx1010", "gfx1011", "gfx1012", "gfx906", "gfx900", "gfx803"]
+
 try:
     if is_amd():
+        arch = torch.cuda.get_device_properties(get_torch_device()).gcnArchName
+        if not (any((a in arch) for a in AMD_RDNA2_AND_OLDER_ARCH)):
+            torch.backends.cudnn.enabled = False  # Seems to improve things a lot on AMD
+            logging.info("Set: torch.backends.cudnn.enabled = False for better AMD performance.")
+
         try:
             rocm_version = tuple(map(int, str(torch.version.hip).split(".")[:2]))
         except:
             rocm_version = (6, -1)
-        arch = torch.cuda.get_device_properties(get_torch_device()).gcnArchName
+
         logging.info("AMD arch: {}".format(arch))
         logging.info("ROCm version: {}".format(rocm_version))
         if args.use_split_cross_attention == False and args.use_quad_cross_attention == False:
@@ -344,11 +353,11 @@ try:
                 if torch_version_numeric >= (2, 7):  # works on 2.6 but doesn't actually seem to improve much
                     if any((a in arch) for a in ["gfx90a", "gfx942", "gfx1100", "gfx1101", "gfx1151"]):  # TODO: more arches, TODO: gfx950
                         ENABLE_PYTORCH_ATTENTION = True
-#                if torch_version_numeric >= (2, 8):
-#                    if any((a in arch) for a in ["gfx1201"]):
-#                        ENABLE_PYTORCH_ATTENTION = True
+                if rocm_version >= (7, 0):
+                   if any((a in arch) for a in ["gfx1201"]):
+                       ENABLE_PYTORCH_ATTENTION = True
         if torch_version_numeric >= (2, 7) and rocm_version >= (6, 4):
-            if any((a in arch) for a in ["gfx1200", "gfx1201", "gfx942", "gfx950"]):  # TODO: more arches
+            if any((a in arch) for a in ["gfx1200", "gfx1201", "gfx950"]):  # TODO: more arches, "gfx942" gives error on pytorch nightly 2.10 1013 rocm7.0
                 SUPPORT_FP8_OPS = True
 
 except:
@@ -370,6 +379,9 @@ try:
 except:
     pass
 
+if torch.cuda.is_available() and torch.backends.cudnn.is_available() and PerformanceFeature.AutoTune in args.fast:
+    torch.backends.cudnn.benchmark = True
+
 try:
     if torch_version_numeric >= (2, 5):
         torch.backends.cuda.allow_fp16_bf16_reduction_math_sdp(True)
@@ -925,11 +937,7 @@ def vae_dtype(device=None, allowed_dtypes=[]):
         if d == torch.float16 and should_use_fp16(device):
             return d
 
-        # NOTE: bfloat16 seems to work on AMD for the VAE but is extremely slow in some cases compared to fp32
-        # slowness still a problem on pytorch nightly 2.9.0.dev20250720+rocm6.4 tested on RDNA3
-        # also a problem on RDNA4 except fp32 is also slow there.
-        # This is due to large bf16 convolutions being extremely slow.
-        if d == torch.bfloat16 and ((not is_amd()) or amd_min_version(device, min_rdna_version=4)) and should_use_bf16(device):
+        if d == torch.bfloat16 and should_use_bf16(device):
             return d
 
     return torch.float32
@@ -991,12 +999,6 @@ def device_supports_non_blocking(device):
         return False
     return True
 
-def device_should_use_non_blocking(device):
-    if not device_supports_non_blocking(device):
-        return False
-    return False
-    # return True #TODO: figure out why this causes memory issues on Nvidia and possibly others
-
 def force_channels_last():
     if args.force_channels_last:
         return True
@@ -1011,6 +1013,16 @@ if args.async_offload:
     NUM_STREAMS = 2
     logging.info("Using async weight offloading with {} streams".format(NUM_STREAMS))
 
+def current_stream(device):
+    if device is None:
+        return None
+    if is_device_cuda(device):
+        return torch.cuda.current_stream()
+    elif is_device_xpu(device):
+        return torch.xpu.current_stream()
+    else:
+        return None
+
 stream_counters = {}
 def get_offload_stream(device):
     stream_counter = stream_counters.get(device, 0)
@@ -1019,21 +1031,17 @@ def get_offload_stream(device):
 
     if device in STREAMS:
         ss = STREAMS[device]
-        s = ss[stream_counter]
+        #Sync the oldest stream in the queue with the current
+        ss[stream_counter].wait_stream(current_stream(device))
         stream_counter = (stream_counter + 1) % len(ss)
-        if is_device_cuda(device):
-            ss[stream_counter].wait_stream(torch.cuda.current_stream())
-        elif is_device_xpu(device):
-            ss[stream_counter].wait_stream(torch.xpu.current_stream())
         stream_counters[device] = stream_counter
-        return s
+        return ss[stream_counter]
     elif is_device_cuda(device):
         ss = []
         for k in range(NUM_STREAMS):
             ss.append(torch.cuda.Stream(device=device, priority=0))
         STREAMS[device] = ss
         s = ss[stream_counter]
-        stream_counter = (stream_counter + 1) % len(ss)
         stream_counters[device] = stream_counter
         return s
     elif is_device_xpu(device):
@@ -1042,18 +1050,14 @@ def get_offload_stream(device):
             ss.append(torch.xpu.Stream(device=device, priority=0))
         STREAMS[device] = ss
         s = ss[stream_counter]
-        stream_counter = (stream_counter + 1) % len(ss)
         stream_counters[device] = stream_counter
         return s
     return None
 
 def sync_stream(device, stream):
-    if stream is None:
+    if stream is None or current_stream(device) is None:
         return
-    if is_device_cuda(device):
-        torch.cuda.current_stream().wait_stream(stream)
-    elif is_device_xpu(device):
-        torch.xpu.current_stream().wait_stream(stream)
+    current_stream(device).wait_stream(stream)
 
 def cast_to(weight, dtype=None, device=None, non_blocking=False, copy=False, stream=None):
     if device is None or weight.device == device:
@@ -1078,6 +1082,60 @@ def cast_to_device(tensor, device, dtype, copy=False):
     non_blocking = device_supports_non_blocking(device)
     return cast_to(tensor, dtype=dtype, device=device, non_blocking=non_blocking, copy=copy)
 
+
+PINNED_MEMORY = {}
+TOTAL_PINNED_MEMORY = 0
+if PerformanceFeature.PinnedMem in args.fast:
+    if WINDOWS:
+        MAX_PINNED_MEMORY = get_total_memory(torch.device("cpu")) * 0.45  # Windows limit is apparently 50%
+    else:
+        MAX_PINNED_MEMORY = get_total_memory(torch.device("cpu")) * 0.95
+else:
+    MAX_PINNED_MEMORY = -1
+
+def pin_memory(tensor):
+    global TOTAL_PINNED_MEMORY
+    if MAX_PINNED_MEMORY <= 0:
+        return False
+
+    if not is_nvidia():
+        return False
+
+    if not is_device_cpu(tensor.device):
+        return False
+
+    size = tensor.numel() * tensor.element_size()
+    if (TOTAL_PINNED_MEMORY + size) > MAX_PINNED_MEMORY:
+        return False
+
+    ptr = tensor.data_ptr()
+    if torch.cuda.cudart().cudaHostRegister(ptr, size, 1) == 0:
+        PINNED_MEMORY[ptr] = size
+        TOTAL_PINNED_MEMORY += size
+        return True
+
+    return False
+
+def unpin_memory(tensor):
+    global TOTAL_PINNED_MEMORY
+    if MAX_PINNED_MEMORY <= 0:
+        return False
+
+    if not is_nvidia():
+        return False
+
+    if not is_device_cpu(tensor.device):
+        return False
+
+    ptr = tensor.data_ptr()
+    if torch.cuda.cudart().cudaHostUnregister(ptr) == 0:
+        TOTAL_PINNED_MEMORY -= PINNED_MEMORY.pop(ptr)
+        if len(PINNED_MEMORY) == 0:
+            TOTAL_PINNED_MEMORY = 0
+        return True
+
+    return False
+
 def sage_attention_enabled():
     return args.use_sage_attention
 
@@ -1330,7 +1388,7 @@ def should_use_bf16(device=None, model_params=0, prioritize_performance=True, ma
 
     if is_amd():
         arch = torch.cuda.get_device_properties(device).gcnArchName
-        if any((a in arch) for a in ["gfx1030", "gfx1031", "gfx1010", "gfx1011", "gfx1012", "gfx906", "gfx900", "gfx803"]):  # RDNA2 and older don't support bf16
+        if any((a in arch) for a in AMD_RDNA2_AND_OLDER_ARCH):  # RDNA2 and older don't support bf16
             if manual_cast:
                 return True
             return False

comfy/model_patcher.py

@@ -238,6 +238,7 @@ class ModelPatcher:
         self.force_cast_weights = False
         self.patches_uuid = uuid.uuid4()
         self.parent = None
+        self.pinned = set()
 
         self.attachments: dict[str] = {}
         self.additional_models: dict[str, list[ModelPatcher]] = {}
@@ -275,6 +276,9 @@ class ModelPatcher:
         self.size = comfy.model_management.module_size(self.model)
         return self.size
 
+    def get_ram_usage(self):
+        return self.model_size()
+
     def loaded_size(self):
         return self.model.model_loaded_weight_memory
 
@@ -294,6 +298,7 @@ class ModelPatcher:
         n.backup = self.backup
         n.object_patches_backup = self.object_patches_backup
         n.parent = self
+        n.pinned = self.pinned
 
         n.force_cast_weights = self.force_cast_weights
 
@@ -450,6 +455,19 @@ class ModelPatcher:
     def set_model_post_input_patch(self, patch):
         self.set_model_patch(patch, "post_input")
 
+    def set_model_rope_options(self, scale_x, shift_x, scale_y, shift_y, scale_t, shift_t, **kwargs):
+        rope_options = self.model_options["transformer_options"].get("rope_options", {})
+        rope_options["scale_x"] = scale_x
+        rope_options["scale_y"] = scale_y
+        rope_options["scale_t"] = scale_t
+
+        rope_options["shift_x"] = shift_x
+        rope_options["shift_y"] = shift_y
+        rope_options["shift_t"] = shift_t
+
+        self.model_options["transformer_options"]["rope_options"] = rope_options
+
+
     def add_object_patch(self, name, obj):
         self.object_patches[name] = obj
 
@@ -618,6 +636,21 @@ class ModelPatcher:
         else:
             set_func(out_weight, inplace_update=inplace_update, seed=string_to_seed(key))
 
+    def pin_weight_to_device(self, key):
+        weight, set_func, convert_func = get_key_weight(self.model, key)
+        if comfy.model_management.pin_memory(weight):
+            self.pinned.add(key)
+
+    def unpin_weight(self, key):
+        if key in self.pinned:
+            weight, set_func, convert_func = get_key_weight(self.model, key)
+            comfy.model_management.unpin_memory(weight)
+            self.pinned.remove(key)
+
+    def unpin_all_weights(self):
+        for key in list(self.pinned):
+            self.unpin_weight(key)
+
     def _load_list(self):
         loading = []
         for n, m in self.model.named_modules():
@@ -639,9 +672,11 @@ class ModelPatcher:
             mem_counter = 0
             patch_counter = 0
             lowvram_counter = 0
+            lowvram_mem_counter = 0
             loading = self._load_list()
 
             load_completely = []
+            offloaded = []
             loading.sort(reverse=True)
             for x in loading:
                 n = x[1]
@@ -658,6 +693,7 @@ class ModelPatcher:
                     if mem_counter + module_mem >= lowvram_model_memory:
                         lowvram_weight = True
                         lowvram_counter += 1
+                        lowvram_mem_counter += module_mem
                         if hasattr(m, "prev_comfy_cast_weights"): #Already lowvramed
                             continue
 
@@ -683,6 +719,7 @@ class ModelPatcher:
                             patch_counter += 1
 
                     cast_weight = True
+                    offloaded.append((module_mem, n, m, params))
                 else:
                     if hasattr(m, "comfy_cast_weights"):
                         wipe_lowvram_weight(m)
@@ -713,7 +750,9 @@ class ModelPatcher:
                         continue
 
                 for param in params:
-                    self.patch_weight_to_device("{}.{}".format(n, param), device_to=device_to)
+                    key = "{}.{}".format(n, param)
+                    self.unpin_weight(key)
+                    self.patch_weight_to_device(key, device_to=device_to)
 
                 logging.debug("lowvram: loaded module regularly {} {}".format(n, m))
                 m.comfy_patched_weights = True
@@ -721,11 +760,17 @@ class ModelPatcher:
             for x in load_completely:
                 x[2].to(device_to)
 
+            for x in offloaded:
+                n = x[1]
+                params = x[3]
+                for param in params:
+                    self.pin_weight_to_device("{}.{}".format(n, param))
+
             if lowvram_counter > 0:
-                logging.info("loaded partially {} {} {}".format(lowvram_model_memory / (1024 * 1024), mem_counter / (1024 * 1024), patch_counter))
+                logging.info("loaded partially; {:.2f} MB usable, {:.2f} MB loaded, {:.2f} MB offloaded, lowvram patches: {}".format(lowvram_model_memory / (1024 * 1024), mem_counter / (1024 * 1024), lowvram_mem_counter / (1024 * 1024), patch_counter))
                 self.model.model_lowvram = True
             else:
-                logging.info("loaded completely {} {} {}".format(lowvram_model_memory / (1024 * 1024), mem_counter / (1024 * 1024), full_load))
+                logging.info("loaded completely; {:.2f} MB usable, {:.2f} MB loaded, full load: {}".format(lowvram_model_memory / (1024 * 1024), mem_counter / (1024 * 1024), full_load))
                 self.model.model_lowvram = False
                 if full_load:
                     self.model.to(device_to)
@@ -762,6 +807,7 @@ class ModelPatcher:
         self.eject_model()
         if unpatch_weights:
             self.unpatch_hooks()
+            self.unpin_all_weights()
             if self.model.model_lowvram:
                 for m in self.model.modules():
                     move_weight_functions(m, device_to)
@@ -857,6 +903,9 @@ class ModelPatcher:
                         memory_freed += module_mem
                         logging.debug("freed {}".format(n))
 
+                        for param in params:
+                            self.pin_weight_to_device("{}.{}".format(n, param))
+
             self.model.model_lowvram = True
             self.model.lowvram_patch_counter += patch_counter
             self.model.model_loaded_weight_memory -= memory_freed
@@ -1259,5 +1308,6 @@ class ModelPatcher:
         self.clear_cached_hook_weights()
 
     def __del__(self):
+        self.unpin_all_weights()
         self.detach(unpatch_all=False)
 

comfy/nested_tensor.py

@@ -0,0 +1,91 @@
+import torch
+
+class NestedTensor:
+    def __init__(self, tensors):
+        self.tensors = list(tensors)
+        self.is_nested = True
+
+    def _copy(self):
+        return NestedTensor(self.tensors)
+
+    def apply_operation(self, other, operation):
+        o = self._copy()
+        if isinstance(other, NestedTensor):
+            for i, t in enumerate(o.tensors):
+                o.tensors[i] = operation(t, other.tensors[i])
+        else:
+            for i, t in enumerate(o.tensors):
+                o.tensors[i] = operation(t, other)
+        return o
+
+    def __add__(self, b):
+        return self.apply_operation(b, lambda x, y: x + y)
+
+    def __sub__(self, b):
+        return self.apply_operation(b, lambda x, y: x - y)
+
+    def __mul__(self, b):
+        return self.apply_operation(b, lambda x, y: x * y)
+
+    # def __itruediv__(self, b):
+    #     return self.apply_operation(b, lambda x, y: x / y)
+
+    def __truediv__(self, b):
+        return self.apply_operation(b, lambda x, y: x / y)
+
+    def __getitem__(self, *args, **kwargs):
+        return self.apply_operation(None, lambda x, y: x.__getitem__(*args, **kwargs))
+
+    def unbind(self):
+        return self.tensors
+
+    def to(self, *args, **kwargs):
+        o = self._copy()
+        for i, t in enumerate(o.tensors):
+            o.tensors[i] = t.to(*args, **kwargs)
+        return o
+
+    def new_ones(self, *args, **kwargs):
+        return self.tensors[0].new_ones(*args, **kwargs)
+
+    def float(self):
+        return self.to(dtype=torch.float)
+
+    def chunk(self, *args, **kwargs):
+        return self.apply_operation(None, lambda x, y: x.chunk(*args, **kwargs))
+
+    def size(self):
+        return self.tensors[0].size()
+
+    @property
+    def shape(self):
+        return self.tensors[0].shape
+
+    @property
+    def ndim(self):
+        dims = 0
+        for t in self.tensors:
+            dims = max(t.ndim, dims)
+        return dims
+
+    @property
+    def device(self):
+        return self.tensors[0].device
+
+    @property
+    def dtype(self):
+        return self.tensors[0].dtype
+
+    @property
+    def layout(self):
+        return self.tensors[0].layout
+
+
+def cat_nested(tensors, *args, **kwargs):
+    cated_tensors = []
+    for i in range(len(tensors[0].tensors)):
+        tens = []
+        for j in range(len(tensors)):
+            tens.append(tensors[j].tensors[i])
+        cated_tensors.append(torch.cat(tens, *args, **kwargs))
+    return NestedTensor(cated_tensors)

comfy/ops.py

@@ -24,13 +24,18 @@ import comfy.float
 import comfy.rmsnorm
 import contextlib
 
+def run_every_op():
+    if torch.compiler.is_compiling():
+        return
+
+    comfy.model_management.throw_exception_if_processing_interrupted()
 
 def scaled_dot_product_attention(q, k, v, *args, **kwargs):
     return torch.nn.functional.scaled_dot_product_attention(q, k, v, *args, **kwargs)
 
 
 try:
-    if torch.cuda.is_available():
+    if torch.cuda.is_available() and comfy.model_management.WINDOWS:
         from torch.nn.attention import SDPBackend, sdpa_kernel
         import inspect
         if "set_priority" in inspect.signature(sdpa_kernel).parameters:
@@ -50,15 +55,26 @@ try:
 except (ModuleNotFoundError, TypeError):
     logging.warning("Could not set sdpa backend priority.")
 
-cast_to = comfy.model_management.cast_to #TODO: remove once no more references
+NVIDIA_MEMORY_CONV_BUG_WORKAROUND = False
+try:
+    if comfy.model_management.is_nvidia():
+        if torch.backends.cudnn.version() >= 91002 and comfy.model_management.torch_version_numeric >= (2, 9) and comfy.model_management.torch_version_numeric <= (2, 10):
+            #TODO: change upper bound version once it's fixed'
+            NVIDIA_MEMORY_CONV_BUG_WORKAROUND = True
+            logging.info("working around nvidia conv3d memory bug.")
+except:
+    pass
 
-if torch.cuda.is_available() and torch.backends.cudnn.is_available() and PerformanceFeature.AutoTune in args.fast:
-    torch.backends.cudnn.benchmark = True
+cast_to = comfy.model_management.cast_to #TODO: remove once no more references
 
 def cast_to_input(weight, input, non_blocking=False, copy=True):
     return comfy.model_management.cast_to(weight, input.dtype, input.device, non_blocking=non_blocking, copy=copy)
 
-def cast_bias_weight(s, input=None, dtype=None, device=None, bias_dtype=None):
+
+def cast_bias_weight(s, input=None, dtype=None, device=None, bias_dtype=None, offloadable=False):
+    # NOTE: offloadable=False is a a legacy and if you are a custom node author reading this please pass
+    # offloadable=True and call uncast_bias_weight() after your last usage of the weight/bias. This
+    # will add async-offload support to your cast and improve performance.
     if input is not None:
         if dtype is None:
             dtype = input.dtype
@@ -67,32 +83,58 @@ def cast_bias_weight(s, input=None, dtype=None, device=None, bias_dtype=None):
         if device is None:
             device = input.device
 
-    offload_stream = comfy.model_management.get_offload_stream(device)
+    if offloadable and (device != s.weight.device or
+                        (s.bias is not None and device != s.bias.device)):
+        offload_stream = comfy.model_management.get_offload_stream(device)
+    else:
+        offload_stream = None
+
     if offload_stream is not None:
         wf_context = offload_stream
     else:
         wf_context = contextlib.nullcontext()
 
-    bias = None
     non_blocking = comfy.model_management.device_supports_non_blocking(device)
-    if s.bias is not None:
-        has_function = len(s.bias_function) > 0
-        bias = comfy.model_management.cast_to(s.bias, bias_dtype, device, non_blocking=non_blocking, copy=has_function, stream=offload_stream)
 
-        if has_function:
+    weight_has_function = len(s.weight_function) > 0
+    bias_has_function = len(s.bias_function) > 0
+
+    weight = comfy.model_management.cast_to(s.weight, None, device, non_blocking=non_blocking, copy=weight_has_function, stream=offload_stream)
+
+    bias = None
+    if s.bias is not None:
+        bias = comfy.model_management.cast_to(s.bias, bias_dtype, device, non_blocking=non_blocking, copy=bias_has_function, stream=offload_stream)
+
+        if bias_has_function:
             with wf_context:
                 for f in s.bias_function:
                     bias = f(bias)
 
-    has_function = len(s.weight_function) > 0
-    weight = comfy.model_management.cast_to(s.weight, dtype, device, non_blocking=non_blocking, copy=has_function, stream=offload_stream)
-    if has_function:
+    weight = weight.to(dtype=dtype)
+    if weight_has_function:
         with wf_context:
             for f in s.weight_function:
                 weight = f(weight)
 
     comfy.model_management.sync_stream(device, offload_stream)
-    return weight, bias
+    if offloadable:
+        return weight, bias, offload_stream
+    else:
+        #Legacy function signature
+        return weight, bias
+
+
+def uncast_bias_weight(s, weight, bias, offload_stream):
+    if offload_stream is None:
+        return
+    if weight is not None:
+        device = weight.device
+    else:
+        if bias is None:
+            return
+        device = bias.device
+    offload_stream.wait_stream(comfy.model_management.current_stream(device))
+
 
 class CastWeightBiasOp:
     comfy_cast_weights = False
@@ -105,10 +147,13 @@ class disable_weight_init:
             return None
 
         def forward_comfy_cast_weights(self, input):
-            weight, bias = cast_bias_weight(self, input)
-            return torch.nn.functional.linear(input, weight, bias)
+            weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
+            x = torch.nn.functional.linear(input, weight, bias)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -119,10 +164,13 @@ class disable_weight_init:
             return None
 
         def forward_comfy_cast_weights(self, input):
-            weight, bias = cast_bias_weight(self, input)
-            return self._conv_forward(input, weight, bias)
+            weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
+            x = self._conv_forward(input, weight, bias)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -133,10 +181,13 @@ class disable_weight_init:
             return None
 
         def forward_comfy_cast_weights(self, input):
-            weight, bias = cast_bias_weight(self, input)
-            return self._conv_forward(input, weight, bias)
+            weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
+            x = self._conv_forward(input, weight, bias)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -146,11 +197,23 @@ class disable_weight_init:
         def reset_parameters(self):
             return None
 
+        def _conv_forward(self, input, weight, bias, *args, **kwargs):
+            if NVIDIA_MEMORY_CONV_BUG_WORKAROUND and weight.dtype in (torch.float16, torch.bfloat16):
+                out = torch.cudnn_convolution(input, weight, self.padding, self.stride, self.dilation, self.groups, benchmark=False, deterministic=False, allow_tf32=True)
+                if bias is not None:
+                    out += bias.reshape((1, -1) + (1,) * (out.ndim - 2))
+                return out
+            else:
+                return super()._conv_forward(input, weight, bias, *args, **kwargs)
+
         def forward_comfy_cast_weights(self, input):
-            weight, bias = cast_bias_weight(self, input)
-            return self._conv_forward(input, weight, bias)
+            weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
+            x = self._conv_forward(input, weight, bias)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -161,10 +224,13 @@ class disable_weight_init:
             return None
 
         def forward_comfy_cast_weights(self, input):
-            weight, bias = cast_bias_weight(self, input)
-            return torch.nn.functional.group_norm(input, self.num_groups, weight, bias, self.eps)
+            weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
+            x = torch.nn.functional.group_norm(input, self.num_groups, weight, bias, self.eps)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -176,13 +242,17 @@ class disable_weight_init:
 
         def forward_comfy_cast_weights(self, input):
             if self.weight is not None:
-                weight, bias = cast_bias_weight(self, input)
+                weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
             else:
                 weight = None
                 bias = None
-            return torch.nn.functional.layer_norm(input, self.normalized_shape, weight, bias, self.eps)
+                offload_stream = None
+            x = torch.nn.functional.layer_norm(input, self.normalized_shape, weight, bias, self.eps)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -195,13 +265,18 @@ class disable_weight_init:
 
         def forward_comfy_cast_weights(self, input):
             if self.weight is not None:
-                weight, bias = cast_bias_weight(self, input)
+                weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
             else:
                 weight = None
-            return comfy.rmsnorm.rms_norm(input, weight, self.eps)  # TODO: switch to commented out line when old torch is deprecated
-            # return torch.nn.functional.rms_norm(input, self.normalized_shape, weight, self.eps)
+                bias = None
+                offload_stream = None
+            x = comfy.rmsnorm.rms_norm(input, weight, self.eps)  # TODO: switch to commented out line when old torch is deprecated
+            # x = torch.nn.functional.rms_norm(input, self.normalized_shape, weight, self.eps)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -217,12 +292,15 @@ class disable_weight_init:
                 input, output_size, self.stride, self.padding, self.kernel_size,
                 num_spatial_dims, self.dilation)
 
-            weight, bias = cast_bias_weight(self, input)
-            return torch.nn.functional.conv_transpose2d(
+            weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
+            x = torch.nn.functional.conv_transpose2d(
                 input, weight, bias, self.stride, self.padding,
                 output_padding, self.groups, self.dilation)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -238,12 +316,15 @@ class disable_weight_init:
                 input, output_size, self.stride, self.padding, self.kernel_size,
                 num_spatial_dims, self.dilation)
 
-            weight, bias = cast_bias_weight(self, input)
-            return torch.nn.functional.conv_transpose1d(
+            weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
+            x = torch.nn.functional.conv_transpose1d(
                 input, weight, bias, self.stride, self.padding,
                 output_padding, self.groups, self.dilation)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -258,10 +339,14 @@ class disable_weight_init:
             output_dtype = out_dtype
             if self.weight.dtype == torch.float16 or self.weight.dtype == torch.bfloat16:
                 out_dtype = None
-            weight, bias = cast_bias_weight(self, device=input.device, dtype=out_dtype)
-            return torch.nn.functional.embedding(input, weight, self.padding_idx, self.max_norm, self.norm_type, self.scale_grad_by_freq, self.sparse).to(dtype=output_dtype)
+            weight, bias, offload_stream = cast_bias_weight(self, device=input.device, dtype=out_dtype, offloadable=True)
+            x = torch.nn.functional.embedding(input, weight, self.padding_idx, self.max_norm, self.norm_type, self.scale_grad_by_freq, self.sparse).to(dtype=output_dtype)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
+
 
         def forward(self, *args, **kwargs):
+            run_every_op()
             if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
                 return self.forward_comfy_cast_weights(*args, **kwargs)
             else:
@@ -312,20 +397,18 @@ class manual_cast(disable_weight_init):
 
 
 def fp8_linear(self, input):
+    """
+    Legacy FP8 linear function for backward compatibility.
+    Uses QuantizedTensor subclass for dispatch.
+    """
     dtype = self.weight.dtype
     if dtype not in [torch.float8_e4m3fn]:
         return None
 
-    tensor_2d = False
-    if len(input.shape) == 2:
-        tensor_2d = True
-        input = input.unsqueeze(1)
-
-    input_shape = input.shape
     input_dtype = input.dtype
-    if len(input.shape) == 3:
-        w, bias = cast_bias_weight(self, input, dtype=dtype, bias_dtype=input_dtype)
-        w = w.t()
+
+    if input.ndim == 3 or input.ndim == 2:
+        w, bias, offload_stream = cast_bias_weight(self, input, dtype=dtype, bias_dtype=input_dtype, offloadable=True)
 
         scale_weight = self.scale_weight
         scale_input = self.scale_input
@@ -337,23 +420,20 @@ def fp8_linear(self, input):
         if scale_input is None:
             scale_input = torch.ones((), device=input.device, dtype=torch.float32)
             input = torch.clamp(input, min=-448, max=448, out=input)
-            input = input.reshape(-1, input_shape[2]).to(dtype).contiguous()
+            layout_params_weight = {'scale': scale_input, 'orig_dtype': input_dtype}
+            quantized_input = QuantizedTensor(input.to(dtype).contiguous(), "TensorCoreFP8Layout", layout_params_weight)
         else:
             scale_input = scale_input.to(input.device)
-            input = (input * (1.0 / scale_input).to(input_dtype)).reshape(-1, input_shape[2]).to(dtype).contiguous()
+            quantized_input = QuantizedTensor.from_float(input, "TensorCoreFP8Layout", scale=scale_input, dtype=dtype)
 
-        if bias is not None:
-            o = torch._scaled_mm(input, w, out_dtype=input_dtype, bias=bias, scale_a=scale_input, scale_b=scale_weight)
-        else:
-            o = torch._scaled_mm(input, w, out_dtype=input_dtype, scale_a=scale_input, scale_b=scale_weight)
+        # Wrap weight in QuantizedTensor - this enables unified dispatch
+        # Call F.linear - __torch_dispatch__ routes to fp8_linear handler in quant_ops.py!
+        layout_params_weight = {'scale': scale_weight, 'orig_dtype': input_dtype}
+        quantized_weight = QuantizedTensor(w, "TensorCoreFP8Layout", layout_params_weight)
+        o = torch.nn.functional.linear(quantized_input, quantized_weight, bias)
 
-        if isinstance(o, tuple):
-            o = o[0]
-
-        if tensor_2d:
-            return o.reshape(input_shape[0], -1)
-
-        return o.reshape((-1, input_shape[1], self.weight.shape[0]))
+        uncast_bias_weight(self, w, bias, offload_stream)
+        return o
 
     return None
 
@@ -373,8 +453,10 @@ class fp8_ops(manual_cast):
                 except Exception as e:
                     logging.info("Exception during fp8 op: {}".format(e))
 
-            weight, bias = cast_bias_weight(self, input)
-            return torch.nn.functional.linear(input, weight, bias)
+            weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
+            x = torch.nn.functional.linear(input, weight, bias)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
 
 def scaled_fp8_ops(fp8_matrix_mult=False, scale_input=False, override_dtype=None):
     logging.info("Using scaled fp8: fp8 matrix mult: {}, scale input: {}".format(fp8_matrix_mult, scale_input))
@@ -402,12 +484,14 @@ def scaled_fp8_ops(fp8_matrix_mult=False, scale_input=False, override_dtype=None
                     if out is not None:
                         return out
 
-                weight, bias = cast_bias_weight(self, input)
+                weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
 
                 if weight.numel() < input.numel(): #TODO: optimize
-                    return torch.nn.functional.linear(input, weight * self.scale_weight.to(device=weight.device, dtype=weight.dtype), bias)
+                    x = torch.nn.functional.linear(input, weight * self.scale_weight.to(device=weight.device, dtype=weight.dtype), bias)
                 else:
-                    return torch.nn.functional.linear(input * self.scale_weight.to(device=weight.device, dtype=weight.dtype), weight, bias)
+                    x = torch.nn.functional.linear(input * self.scale_weight.to(device=weight.device, dtype=weight.dtype), weight, bias)
+                uncast_bias_weight(self, weight, bias, offload_stream)
+                return x
 
             def convert_weight(self, weight, inplace=False, **kwargs):
                 if inplace:
@@ -446,7 +530,130 @@ if CUBLAS_IS_AVAILABLE:
             def forward(self, *args, **kwargs):
                 return super().forward(*args, **kwargs)
 
-def pick_operations(weight_dtype, compute_dtype, load_device=None, disable_fast_fp8=False, fp8_optimizations=False, scaled_fp8=None):
+
+# ==============================================================================
+# Mixed Precision Operations
+# ==============================================================================
+from .quant_ops import QuantizedTensor
+
+QUANT_FORMAT_MIXINS = {
+    "float8_e4m3fn": {
+        "dtype": torch.float8_e4m3fn,
+        "layout_type": "TensorCoreFP8Layout",
+        "parameters": {
+            "weight_scale": torch.nn.Parameter(torch.zeros((), dtype=torch.float32), requires_grad=False),
+            "input_scale": torch.nn.Parameter(torch.zeros((), dtype=torch.float32), requires_grad=False),
+        }
+    }
+}
+
+class MixedPrecisionOps(disable_weight_init):
+    _layer_quant_config = {}
+    _compute_dtype = torch.bfloat16
+
+    class Linear(torch.nn.Module, CastWeightBiasOp):
+        def __init__(
+            self,
+            in_features: int,
+            out_features: int,
+            bias: bool = True,
+            device=None,
+            dtype=None,
+        ) -> None:
+            super().__init__()
+
+            self.factory_kwargs = {"device": device, "dtype": MixedPrecisionOps._compute_dtype}
+            # self.factory_kwargs = {"device": device, "dtype": dtype}
+
+            self.in_features = in_features
+            self.out_features = out_features
+            if bias:
+                self.bias = torch.nn.Parameter(torch.empty(out_features, **self.factory_kwargs))
+            else:
+                self.register_parameter("bias", None)
+
+            self.tensor_class = None
+
+        def reset_parameters(self):
+            return None
+
+        def _load_from_state_dict(self, state_dict, prefix, local_metadata,
+                                  strict, missing_keys, unexpected_keys, error_msgs):
+
+            device = self.factory_kwargs["device"]
+            layer_name = prefix.rstrip('.')
+            weight_key = f"{prefix}weight"
+            weight = state_dict.pop(weight_key, None)
+            if weight is None:
+                raise ValueError(f"Missing weight for layer {layer_name}")
+
+            manually_loaded_keys = [weight_key]
+
+            if layer_name not in MixedPrecisionOps._layer_quant_config:
+                self.weight = torch.nn.Parameter(weight.to(device=device, dtype=MixedPrecisionOps._compute_dtype), requires_grad=False)
+            else:
+                quant_format = MixedPrecisionOps._layer_quant_config[layer_name].get("format", None)
+                if quant_format is None:
+                    raise ValueError(f"Unknown quantization format for layer {layer_name}")
+
+                mixin = QUANT_FORMAT_MIXINS[quant_format]
+                self.layout_type = mixin["layout_type"]
+
+                scale_key = f"{prefix}weight_scale"
+                layout_params = {
+                    'scale': state_dict.pop(scale_key, None),
+                    'orig_dtype': MixedPrecisionOps._compute_dtype
+                }
+                if layout_params['scale'] is not None:
+                    manually_loaded_keys.append(scale_key)
+
+                self.weight = torch.nn.Parameter(
+                    QuantizedTensor(weight.to(device=device, dtype=mixin["dtype"]), self.layout_type, layout_params),
+                    requires_grad=False
+                )
+
+                for param_name, param_value in mixin["parameters"].items():
+                    param_key = f"{prefix}{param_name}"
+                    _v = state_dict.pop(param_key, None)
+                    if _v is None:
+                        continue
+                    setattr(self, param_name, torch.nn.Parameter(_v.to(device=device), requires_grad=False))
+                    manually_loaded_keys.append(param_key)
+
+            super()._load_from_state_dict(state_dict, prefix, local_metadata, strict, missing_keys, unexpected_keys, error_msgs)
+
+            for key in manually_loaded_keys:
+                if key in missing_keys:
+                    missing_keys.remove(key)
+
+        def _forward(self, input, weight, bias):
+            return torch.nn.functional.linear(input, weight, bias)
+
+        def forward_comfy_cast_weights(self, input):
+            weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
+            x = self._forward(input, weight, bias)
+            uncast_bias_weight(self, weight, bias, offload_stream)
+            return x
+
+        def forward(self, input, *args, **kwargs):
+            run_every_op()
+
+            if self.comfy_cast_weights or len(self.weight_function) > 0 or len(self.bias_function) > 0:
+                return self.forward_comfy_cast_weights(input, *args, **kwargs)
+            if (getattr(self, 'layout_type', None) is not None and
+                getattr(self, 'input_scale', None) is not None and
+                not isinstance(input, QuantizedTensor)):
+                input = QuantizedTensor.from_float(input, self.layout_type, scale=self.input_scale, fp8_dtype=self.weight.dtype)
+            return self._forward(input, self.weight, self.bias)
+
+
+def pick_operations(weight_dtype, compute_dtype, load_device=None, disable_fast_fp8=False, fp8_optimizations=False, scaled_fp8=None, model_config=None):
+    if model_config and hasattr(model_config, 'layer_quant_config') and model_config.layer_quant_config:
+        MixedPrecisionOps._layer_quant_config = model_config.layer_quant_config
+        MixedPrecisionOps._compute_dtype = compute_dtype
+        logging.info(f"Using mixed precision operations: {len(model_config.layer_quant_config)} quantized layers")
+        return MixedPrecisionOps
+
     fp8_compute = comfy.model_management.supports_fp8_compute(load_device)
     if scaled_fp8 is not None:
         return scaled_fp8_ops(fp8_matrix_mult=fp8_compute and fp8_optimizations, scale_input=fp8_optimizations, override_dtype=scaled_fp8)

comfy/patcher_extension.py

@@ -150,7 +150,7 @@ def merge_nested_dicts(dict1: dict, dict2: dict, copy_dict1=True):
     for key, value in dict2.items():
         if isinstance(value, dict):
             curr_value = merged_dict.setdefault(key, {})
-            merged_dict[key] = merge_nested_dicts(value, curr_value)
+            merged_dict[key] = merge_nested_dicts(curr_value, value)
         elif isinstance(value, list):
             merged_dict.setdefault(key, []).extend(value)
         else:

comfy/quant_ops.py

@@ -0,0 +1,512 @@
+import torch
+import logging
+from typing import Tuple, Dict
+
+_LAYOUT_REGISTRY = {}
+_GENERIC_UTILS = {}
+
+
+def register_layout_op(torch_op, layout_type):
+    """
+    Decorator to register a layout-specific operation handler.
+    Args:
+        torch_op: PyTorch operation (e.g., torch.ops.aten.linear.default)
+        layout_type: Layout class (e.g., TensorCoreFP8Layout)
+    Example:
+        @register_layout_op(torch.ops.aten.linear.default, TensorCoreFP8Layout)
+        def fp8_linear(func, args, kwargs):
+            # FP8-specific linear implementation
+            ...
+    """
+    def decorator(handler_func):
+        if torch_op not in _LAYOUT_REGISTRY:
+            _LAYOUT_REGISTRY[torch_op] = {}
+        _LAYOUT_REGISTRY[torch_op][layout_type] = handler_func
+        return handler_func
+    return decorator
+
+
+def register_generic_util(torch_op):
+    """
+    Decorator to register a generic utility that works for all layouts.
+    Args:
+        torch_op: PyTorch operation (e.g., torch.ops.aten.detach.default)
+
+    Example:
+        @register_generic_util(torch.ops.aten.detach.default)
+        def generic_detach(func, args, kwargs):
+            # Works for any layout
+            ...
+    """
+    def decorator(handler_func):
+        _GENERIC_UTILS[torch_op] = handler_func
+        return handler_func
+    return decorator
+
+
+def _get_layout_from_args(args):
+    for arg in args:
+        if isinstance(arg, QuantizedTensor):
+            return arg._layout_type
+        elif isinstance(arg, (list, tuple)):
+            for item in arg:
+                if isinstance(item, QuantizedTensor):
+                    return item._layout_type
+    return None
+
+
+def _move_layout_params_to_device(params, device):
+    new_params = {}
+    for k, v in params.items():
+        if isinstance(v, torch.Tensor):
+            new_params[k] = v.to(device=device)
+        else:
+            new_params[k] = v
+    return new_params
+
+
+def _copy_layout_params(params):
+    new_params = {}
+    for k, v in params.items():
+        if isinstance(v, torch.Tensor):
+            new_params[k] = v.clone()
+        else:
+            new_params[k] = v
+    return new_params
+
+
+class QuantizedLayout:
+    """
+    Base class for quantization layouts.
+
+    A layout encapsulates the format-specific logic for quantization/dequantization
+    and provides a uniform interface for extracting raw tensors needed for computation.
+
+    New quantization formats should subclass this and implement the required methods.
+    """
+    @classmethod
+    def quantize(cls, tensor, **kwargs) -> Tuple[torch.Tensor, Dict]:
+        raise NotImplementedError(f"{cls.__name__} must implement quantize()")
+
+    @staticmethod
+    def dequantize(qdata, **layout_params) -> torch.Tensor:
+        raise NotImplementedError("TensorLayout must implement dequantize()")
+
+    @classmethod
+    def get_plain_tensors(cls, qtensor) -> torch.Tensor:
+        raise NotImplementedError(f"{cls.__name__} must implement get_plain_tensors()")
+
+
+class QuantizedTensor(torch.Tensor):
+    """
+    Universal quantized tensor that works with any layout.
+
+    This tensor subclass uses a pluggable layout system to support multiple
+    quantization formats (FP8, INT4, INT8, etc.) without code duplication.
+
+    The layout_type determines format-specific behavior, while common operations
+    (detach, clone, to) are handled generically.
+
+    Attributes:
+        _qdata: The quantized tensor data
+        _layout_type: Layout class (e.g., TensorCoreFP8Layout)
+        _layout_params: Dict with layout-specific params (scale, zero_point, etc.)
+    """
+
+    @staticmethod
+    def __new__(cls, qdata, layout_type, layout_params):
+        """
+        Create a quantized tensor.
+
+        Args:
+            qdata: The quantized data tensor
+            layout_type: Layout class (subclass of QuantizedLayout)
+            layout_params: Dict with layout-specific parameters
+        """
+        return torch.Tensor._make_wrapper_subclass(cls, qdata.shape, device=qdata.device, dtype=qdata.dtype, requires_grad=False)
+
+    def __init__(self, qdata, layout_type, layout_params):
+        self._qdata = qdata
+        self._layout_type = layout_type
+        self._layout_params = layout_params
+
+    def __repr__(self):
+        layout_name = self._layout_type
+        param_str = ", ".join(f"{k}={v}" for k, v in list(self._layout_params.items())[:2])
+        return f"QuantizedTensor(shape={self.shape}, layout={layout_name}, {param_str})"
+
+    @property
+    def layout_type(self):
+        return self._layout_type
+
+    def __tensor_flatten__(self):
+        """
+        Tensor flattening protocol for proper device movement.
+        """
+        inner_tensors = ["_qdata"]
+        ctx = {
+            "layout_type": self._layout_type,
+        }
+
+        tensor_params = {}
+        non_tensor_params = {}
+        for k, v in self._layout_params.items():
+            if isinstance(v, torch.Tensor):
+                tensor_params[k] = v
+            else:
+                non_tensor_params[k] = v
+
+        ctx["tensor_param_keys"] = list(tensor_params.keys())
+        ctx["non_tensor_params"] = non_tensor_params
+
+        for k, v in tensor_params.items():
+            attr_name = f"_layout_param_{k}"
+            object.__setattr__(self, attr_name, v)
+            inner_tensors.append(attr_name)
+
+        return inner_tensors, ctx
+
+    @staticmethod
+    def __tensor_unflatten__(inner_tensors, ctx, outer_size, outer_stride):
+        """
+        Tensor unflattening protocol for proper device movement.
+        Reconstructs the QuantizedTensor after device movement.
+        """
+        layout_type = ctx["layout_type"]
+        layout_params = dict(ctx["non_tensor_params"])
+
+        for key in ctx["tensor_param_keys"]:
+            attr_name = f"_layout_param_{key}"
+            layout_params[key] = inner_tensors[attr_name]
+
+        return QuantizedTensor(inner_tensors["_qdata"], layout_type, layout_params)
+
+    @classmethod
+    def from_float(cls, tensor, layout_type, **quantize_kwargs) -> 'QuantizedTensor':
+        qdata, layout_params = LAYOUTS[layout_type].quantize(tensor, **quantize_kwargs)
+        return cls(qdata, layout_type, layout_params)
+
+    def dequantize(self) -> torch.Tensor:
+        return LAYOUTS[self._layout_type].dequantize(self._qdata, **self._layout_params)
+
+    @classmethod
+    def __torch_dispatch__(cls, func, types, args=(), kwargs=None):
+        kwargs = kwargs or {}
+
+        # Step 1: Check generic utilities first (detach, clone, to, etc.)
+        if func in _GENERIC_UTILS:
+            return _GENERIC_UTILS[func](func, args, kwargs)
+
+        # Step 2: Check layout-specific handlers (linear, matmul, etc.)
+        layout_type = _get_layout_from_args(args)
+        if layout_type and func in _LAYOUT_REGISTRY:
+            handler = _LAYOUT_REGISTRY[func].get(layout_type)
+            if handler:
+                return handler(func, args, kwargs)
+
+        # Step 3: Fallback to dequantization
+        if isinstance(args[0] if args else None, QuantizedTensor):
+            logging.info(f"QuantizedTensor: Unhandled operation {func}, falling back to dequantization. kwargs={kwargs}")
+        return cls._dequant_and_fallback(func, args, kwargs)
+
+    @classmethod
+    def _dequant_and_fallback(cls, func, args, kwargs):
+        def dequant_arg(arg):
+            if isinstance(arg, QuantizedTensor):
+                return arg.dequantize()
+            elif isinstance(arg, (list, tuple)):
+                return type(arg)(dequant_arg(a) for a in arg)
+            return arg
+
+        new_args = dequant_arg(args)
+        new_kwargs = dequant_arg(kwargs)
+        return func(*new_args, **new_kwargs)
+
+
+# ==============================================================================
+# Generic Utilities (Layout-Agnostic Operations)
+# ==============================================================================
+
+def _create_transformed_qtensor(qt, transform_fn):
+    new_data = transform_fn(qt._qdata)
+    new_params = _copy_layout_params(qt._layout_params)
+    return QuantizedTensor(new_data, qt._layout_type, new_params)
+
+
+def _handle_device_transfer(qt, target_device, target_dtype=None, target_layout=None, op_name="to"):
+    if target_dtype is not None and target_dtype != qt.dtype:
+        logging.warning(
+            f"QuantizedTensor: dtype conversion requested to {target_dtype}, "
+            f"but not supported for quantized tensors. Ignoring dtype."
+        )
+
+    if target_layout is not None and target_layout != torch.strided:
+        logging.warning(
+            f"QuantizedTensor: layout change requested to {target_layout}, "
+            f"but not supported. Ignoring layout."
+        )
+
+    # Handle device transfer
+    current_device = qt._qdata.device
+    if target_device is not None:
+        # Normalize device for comparison
+        if isinstance(target_device, str):
+            target_device = torch.device(target_device)
+        if isinstance(current_device, str):
+            current_device = torch.device(current_device)
+
+        if target_device != current_device:
+            logging.debug(f"QuantizedTensor.{op_name}: Moving from {current_device} to {target_device}")
+            new_q_data = qt._qdata.to(device=target_device)
+            new_params = _move_layout_params_to_device(qt._layout_params, target_device)
+            new_qt = QuantizedTensor(new_q_data, qt._layout_type, new_params)
+            logging.debug(f"QuantizedTensor.{op_name}: Created new tensor on {target_device}")
+            return new_qt
+
+    logging.debug(f"QuantizedTensor.{op_name}: No device change needed, returning original")
+    return qt
+
+
+@register_generic_util(torch.ops.aten.detach.default)
+def generic_detach(func, args, kwargs):
+    """Detach operation - creates a detached copy of the quantized tensor."""
+    qt = args[0]
+    if isinstance(qt, QuantizedTensor):
+        return _create_transformed_qtensor(qt, lambda x: x.detach())
+    return func(*args, **kwargs)
+
+
+@register_generic_util(torch.ops.aten.clone.default)
+def generic_clone(func, args, kwargs):
+    """Clone operation - creates a deep copy of the quantized tensor."""
+    qt = args[0]
+    if isinstance(qt, QuantizedTensor):
+        return _create_transformed_qtensor(qt, lambda x: x.clone())
+    return func(*args, **kwargs)
+
+
+@register_generic_util(torch.ops.aten._to_copy.default)
+def generic_to_copy(func, args, kwargs):
+    """Device/dtype transfer operation - handles .to(device) calls."""
+    qt = args[0]
+    if isinstance(qt, QuantizedTensor):
+        return _handle_device_transfer(
+            qt,
+            target_device=kwargs.get('device', None),
+            target_dtype=kwargs.get('dtype', None),
+            op_name="_to_copy"
+        )
+    return func(*args, **kwargs)
+
+
+@register_generic_util(torch.ops.aten.to.dtype_layout)
+def generic_to_dtype_layout(func, args, kwargs):
+    """Handle .to(device) calls using the dtype_layout variant."""
+    qt = args[0]
+    if isinstance(qt, QuantizedTensor):
+        return _handle_device_transfer(
+            qt,
+            target_device=kwargs.get('device', None),
+            target_dtype=kwargs.get('dtype', None),
+            target_layout=kwargs.get('layout', None),
+            op_name="to"
+        )
+    return func(*args, **kwargs)
+
+
+@register_generic_util(torch.ops.aten.copy_.default)
+def generic_copy_(func, args, kwargs):
+    qt_dest = args[0]
+    src = args[1]
+
+    if isinstance(qt_dest, QuantizedTensor):
+        if isinstance(src, QuantizedTensor):
+            # Copy from another quantized tensor
+            qt_dest._qdata.copy_(src._qdata)
+            qt_dest._layout_type = src._layout_type
+            qt_dest._layout_params = _copy_layout_params(src._layout_params)
+        else:
+            # Copy from regular tensor - just copy raw data
+            qt_dest._qdata.copy_(src)
+        return qt_dest
+    return func(*args, **kwargs)
+
+
+@register_generic_util(torch.ops.aten._has_compatible_shallow_copy_type.default)
+def generic_has_compatible_shallow_copy_type(func, args, kwargs):
+    return True
+
+# ==============================================================================
+# FP8 Layout + Operation Handlers
+# ==============================================================================
+class TensorCoreFP8Layout(QuantizedLayout):
+    """
+    Storage format:
+    - qdata: FP8 tensor (torch.float8_e4m3fn or torch.float8_e5m2)
+    - scale: Scalar tensor (float32) for dequantization
+    - orig_dtype: Original dtype before quantization (for casting back)
+    """
+    @classmethod
+    def quantize(cls, tensor, scale=None, dtype=torch.float8_e4m3fn):
+        orig_dtype = tensor.dtype
+
+        if scale is None:
+            scale = torch.amax(tensor.abs()) / torch.finfo(dtype).max
+
+        if not isinstance(scale, torch.Tensor):
+            scale = torch.tensor(scale)
+        scale = scale.to(device=tensor.device, dtype=torch.float32)
+
+        tensor_scaled = tensor * (1.0 / scale).to(tensor.dtype)
+        # TODO: uncomment this if it's actually needed because the clamp has a small performance penality'
+        # lp_amax = torch.finfo(dtype).max
+        # torch.clamp(tensor_scaled, min=-lp_amax, max=lp_amax, out=tensor_scaled)
+        qdata = tensor_scaled.to(dtype, memory_format=torch.contiguous_format)
+
+        layout_params = {
+            'scale': scale,
+            'orig_dtype': orig_dtype
+        }
+        return qdata, layout_params
+
+    @staticmethod
+    def dequantize(qdata, scale, orig_dtype, **kwargs):
+        plain_tensor = torch.ops.aten._to_copy.default(qdata, dtype=orig_dtype)
+        return plain_tensor * scale
+
+    @classmethod
+    def get_plain_tensors(cls, qtensor):
+        return qtensor._qdata, qtensor._layout_params['scale']
+
+
+LAYOUTS = {
+    "TensorCoreFP8Layout": TensorCoreFP8Layout,
+}
+
+
+@register_layout_op(torch.ops.aten.linear.default, "TensorCoreFP8Layout")
+def fp8_linear(func, args, kwargs):
+    input_tensor = args[0]
+    weight = args[1]
+    bias = args[2] if len(args) > 2 else None
+
+    if isinstance(input_tensor, QuantizedTensor) and isinstance(weight, QuantizedTensor):
+        plain_input, scale_a = TensorCoreFP8Layout.get_plain_tensors(input_tensor)
+        plain_weight, scale_b = TensorCoreFP8Layout.get_plain_tensors(weight)
+
+        out_dtype = kwargs.get("out_dtype")
+        if out_dtype is None:
+            out_dtype = input_tensor._layout_params['orig_dtype']
+
+        weight_t = plain_weight.t()
+
+        tensor_2d = False
+        if len(plain_input.shape) == 2:
+            tensor_2d = True
+            plain_input = plain_input.unsqueeze(1)
+
+        input_shape = plain_input.shape
+        if len(input_shape) != 3:
+            return None
+
+        try:
+            output = torch._scaled_mm(
+                plain_input.reshape(-1, input_shape[2]).contiguous(),
+                weight_t,
+                bias=bias,
+                scale_a=scale_a,
+                scale_b=scale_b,
+                out_dtype=out_dtype,
+            )
+
+            if isinstance(output, tuple):  # TODO: remove when we drop support for torch 2.4
+                output = output[0]
+
+            if not tensor_2d:
+                output = output.reshape((-1, input_shape[1], weight.shape[0]))
+
+            if output.dtype in [torch.float8_e4m3fn, torch.float8_e5m2]:
+                output_scale = scale_a * scale_b
+                output_params = {
+                    'scale': output_scale,
+                    'orig_dtype': input_tensor._layout_params['orig_dtype']
+                }
+                return QuantizedTensor(output, "TensorCoreFP8Layout", output_params)
+            else:
+                return output
+
+        except Exception as e:
+            raise RuntimeError(f"FP8 _scaled_mm failed, falling back to dequantization: {e}")
+
+    # Case 2: DQ Fallback
+    if isinstance(weight, QuantizedTensor):
+        weight = weight.dequantize()
+    if isinstance(input_tensor, QuantizedTensor):
+        input_tensor = input_tensor.dequantize()
+
+    return torch.nn.functional.linear(input_tensor, weight, bias)
+
+def fp8_mm_(input_tensor, weight, bias=None, out_dtype=None):
+    if out_dtype is None:
+        out_dtype = input_tensor._layout_params['orig_dtype']
+
+    plain_input, scale_a = TensorCoreFP8Layout.get_plain_tensors(input_tensor)
+    plain_weight, scale_b = TensorCoreFP8Layout.get_plain_tensors(weight)
+
+    output = torch._scaled_mm(
+        plain_input.contiguous(),
+        plain_weight,
+        bias=bias,
+        scale_a=scale_a,
+        scale_b=scale_b,
+        out_dtype=out_dtype,
+    )
+
+    if isinstance(output, tuple):  # TODO: remove when we drop support for torch 2.4
+        output = output[0]
+    return output
+
+@register_layout_op(torch.ops.aten.addmm.default, "TensorCoreFP8Layout")
+def fp8_addmm(func, args, kwargs):
+    input_tensor = args[1]
+    weight = args[2]
+    bias = args[0]
+
+    if isinstance(input_tensor, QuantizedTensor) and isinstance(weight, QuantizedTensor):
+        return fp8_mm_(input_tensor, weight, bias=bias, out_dtype=kwargs.get("out_dtype", None))
+
+    a = list(args)
+    if isinstance(args[0], QuantizedTensor):
+        a[0] = args[0].dequantize()
+    if isinstance(args[1], QuantizedTensor):
+        a[1] = args[1].dequantize()
+    if isinstance(args[2], QuantizedTensor):
+        a[2] = args[2].dequantize()
+
+    return func(*a, **kwargs)
+
+@register_layout_op(torch.ops.aten.mm.default, "TensorCoreFP8Layout")
+def fp8_mm(func, args, kwargs):
+    input_tensor = args[0]
+    weight = args[1]
+
+    if isinstance(input_tensor, QuantizedTensor) and isinstance(weight, QuantizedTensor):
+        return fp8_mm_(input_tensor, weight, bias=None, out_dtype=kwargs.get("out_dtype", None))
+
+    a = list(args)
+    if isinstance(args[0], QuantizedTensor):
+        a[0] = args[0].dequantize()
+    if isinstance(args[1], QuantizedTensor):
+        a[1] = args[1].dequantize()
+    return func(*a, **kwargs)
+
+@register_layout_op(torch.ops.aten.view.default, "TensorCoreFP8Layout")
+@register_layout_op(torch.ops.aten.t.default, "TensorCoreFP8Layout")
+def fp8_func(func, args, kwargs):
+    input_tensor = args[0]
+    if isinstance(input_tensor, QuantizedTensor):
+        plain_input, scale_a = TensorCoreFP8Layout.get_plain_tensors(input_tensor)
+        ar = list(args)
+        ar[0] = plain_input
+        return QuantizedTensor(func(*ar, **kwargs), "TensorCoreFP8Layout", input_tensor._layout_params)
+    return func(*args, **kwargs)

comfy/sample.py

@@ -4,13 +4,9 @@ import comfy.samplers
 import comfy.utils
 import numpy as np
 import logging
+import comfy.nested_tensor
 
-def prepare_noise(latent_image, seed, noise_inds=None):
-    """
-    creates random noise given a latent image and a seed.
-    optional arg skip can be used to skip and discard x number of noise generations for a given seed
-    """
-    generator = torch.manual_seed(seed)
+def prepare_noise_inner(latent_image, generator, noise_inds=None):
     if noise_inds is None:
         return torch.randn(latent_image.size(), dtype=latent_image.dtype, layout=latent_image.layout, generator=generator, device="cpu")
 
@@ -21,10 +17,29 @@ def prepare_noise(latent_image, seed, noise_inds=None):
         if i in unique_inds:
             noises.append(noise)
     noises = [noises[i] for i in inverse]
-    noises = torch.cat(noises, axis=0)
+    return torch.cat(noises, axis=0)
+
+def prepare_noise(latent_image, seed, noise_inds=None):
+    """
+    creates random noise given a latent image and a seed.
+    optional arg skip can be used to skip and discard x number of noise generations for a given seed
+    """
+    generator = torch.manual_seed(seed)
+
+    if latent_image.is_nested:
+        tensors = latent_image.unbind()
+        noises = []
+        for t in tensors:
+            noises.append(prepare_noise_inner(t, generator, noise_inds))
+        noises = comfy.nested_tensor.NestedTensor(noises)
+    else:
+        noises = prepare_noise_inner(latent_image, generator, noise_inds)
+
     return noises
 
 def fix_empty_latent_channels(model, latent_image):
+    if latent_image.is_nested:
+        return latent_image
     latent_format = model.get_model_object("latent_format") #Resize the empty latent image so it has the right number of channels
     if latent_format.latent_channels != latent_image.shape[1] and torch.count_nonzero(latent_image) == 0:
         latent_image = comfy.utils.repeat_to_batch_size(latent_image, latent_format.latent_channels, dim=1)

comfy/samplers.py

@@ -306,17 +306,10 @@ def _calc_cond_batch(model: BaseModel, conds: list[list[dict]], x_in: torch.Tens
                                                                                  copy_dict1=False)
 
             if patches is not None:
-                # TODO: replace with merge_nested_dicts function
-                if "patches" in transformer_options:
-                    cur_patches = transformer_options["patches"].copy()
-                    for p in patches:
-                        if p in cur_patches:
-                            cur_patches[p] = cur_patches[p] + patches[p]
-                        else:
-                            cur_patches[p] = patches[p]
-                    transformer_options["patches"] = cur_patches
-                else:
-                    transformer_options["patches"] = patches
+                transformer_options["patches"] = comfy.patcher_extension.merge_nested_dicts(
+                    transformer_options.get("patches", {}),
+                    patches
+                )
 
             transformer_options["cond_or_uncond"] = cond_or_uncond[:]
             transformer_options["uuids"] = uuids[:]
@@ -789,7 +782,7 @@ def ksampler(sampler_name, extra_options={}, inpaint_options={}):
     return KSAMPLER(sampler_function, extra_options, inpaint_options)
 
 
-def process_conds(model, noise, conds, device, latent_image=None, denoise_mask=None, seed=None):
+def process_conds(model, noise, conds, device, latent_image=None, denoise_mask=None, seed=None, latent_shapes=None):
     for k in conds:
         conds[k] = conds[k][:]
         resolve_areas_and_cond_masks_multidim(conds[k], noise.shape[2:], device)
@@ -799,7 +792,7 @@ def process_conds(model, noise, conds, device, latent_image=None, denoise_mask=N
 
     if hasattr(model, 'extra_conds'):
         for k in conds:
-            conds[k] = encode_model_conds(model.extra_conds, conds[k], noise, device, k, latent_image=latent_image, denoise_mask=denoise_mask, seed=seed)
+            conds[k] = encode_model_conds(model.extra_conds, conds[k], noise, device, k, latent_image=latent_image, denoise_mask=denoise_mask, seed=seed, latent_shapes=latent_shapes)
 
     #make sure each cond area has an opposite one with the same area
     for k in conds:
@@ -969,11 +962,11 @@ class CFGGuider:
     def predict_noise(self, x, timestep, model_options={}, seed=None):
         return sampling_function(self.inner_model, x, timestep, self.conds.get("negative", None), self.conds.get("positive", None), self.cfg, model_options=model_options, seed=seed)
 
-    def inner_sample(self, noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed):
+    def inner_sample(self, noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=None):
         if latent_image is not None and torch.count_nonzero(latent_image) > 0: #Don't shift the empty latent image.
             latent_image = self.inner_model.process_latent_in(latent_image)
 
-        self.conds = process_conds(self.inner_model, noise, self.conds, device, latent_image, denoise_mask, seed)
+        self.conds = process_conds(self.inner_model, noise, self.conds, device, latent_image, denoise_mask, seed, latent_shapes=latent_shapes)
 
         extra_model_options = comfy.model_patcher.create_model_options_clone(self.model_options)
         extra_model_options.setdefault("transformer_options", {})["sample_sigmas"] = sigmas
@@ -987,7 +980,7 @@ class CFGGuider:
         samples = executor.execute(self, sigmas, extra_args, callback, noise, latent_image, denoise_mask, disable_pbar)
         return self.inner_model.process_latent_out(samples.to(torch.float32))
 
-    def outer_sample(self, noise, latent_image, sampler, sigmas, denoise_mask=None, callback=None, disable_pbar=False, seed=None):
+    def outer_sample(self, noise, latent_image, sampler, sigmas, denoise_mask=None, callback=None, disable_pbar=False, seed=None, latent_shapes=None):
         self.inner_model, self.conds, self.loaded_models = comfy.sampler_helpers.prepare_sampling(self.model_patcher, noise.shape, self.conds, self.model_options)
         device = self.model_patcher.load_device
 
@@ -1001,7 +994,7 @@ class CFGGuider:
 
         try:
             self.model_patcher.pre_run()
-            output = self.inner_sample(noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed)
+            output = self.inner_sample(noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
         finally:
             self.model_patcher.cleanup()
 
@@ -1014,6 +1007,12 @@ class CFGGuider:
         if sigmas.shape[-1] == 0:
             return latent_image
 
+        if latent_image.is_nested:
+            latent_image, latent_shapes = comfy.utils.pack_latents(latent_image.unbind())
+            noise, _ = comfy.utils.pack_latents(noise.unbind())
+        else:
+            latent_shapes = [latent_image.shape]
+
         self.conds = {}
         for k in self.original_conds:
             self.conds[k] = list(map(lambda a: a.copy(), self.original_conds[k]))
@@ -1033,7 +1032,7 @@ class CFGGuider:
                 self,
                 comfy.patcher_extension.get_all_wrappers(comfy.patcher_extension.WrappersMP.OUTER_SAMPLE, self.model_options, is_model_options=True)
             )
-            output = executor.execute(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed)
+            output = executor.execute(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
         finally:
             cast_to_load_options(self.model_options, device=self.model_patcher.offload_device)
             self.model_options = orig_model_options
@@ -1041,6 +1040,9 @@ class CFGGuider:
             self.model_patcher.restore_hook_patches()
 
         del self.conds
+
+        if len(latent_shapes) > 1:
+            output = comfy.nested_tensor.NestedTensor(comfy.utils.unpack_latents(output, latent_shapes))
         return output
 
 

comfy/sd.py

@@ -18,6 +18,7 @@ import comfy.ldm.wan.vae2_2
 import comfy.ldm.hunyuan3d.vae
 import comfy.ldm.ace.vae.music_dcae_pipeline
 import comfy.ldm.hunyuan_video.vae
+import comfy.ldm.mmaudio.vae.autoencoder
 import comfy.pixel_space_convert
 import yaml
 import math
@@ -142,6 +143,9 @@ class CLIP:
         n.apply_hooks_to_conds = self.apply_hooks_to_conds
         return n
 
+    def get_ram_usage(self):
+        return self.patcher.get_ram_usage()
+
     def add_patches(self, patches, strength_patch=1.0, strength_model=1.0):
         return self.patcher.add_patches(patches, strength_patch, strength_model)
 
@@ -275,8 +279,13 @@ class VAE:
         if 'decoder.up_blocks.0.resnets.0.norm1.weight' in sd.keys(): #diffusers format
             sd = diffusers_convert.convert_vae_state_dict(sd)
 
-        self.memory_used_encode = lambda shape, dtype: (1767 * shape[2] * shape[3]) * model_management.dtype_size(dtype) #These are for AutoencoderKL and need tweaking (should be lower)
-        self.memory_used_decode = lambda shape, dtype: (2178 * shape[2] * shape[3] * 64) * model_management.dtype_size(dtype)
+        if model_management.is_amd():
+            VAE_KL_MEM_RATIO = 2.73
+        else:
+            VAE_KL_MEM_RATIO = 1.0
+
+        self.memory_used_encode = lambda shape, dtype: (1767 * shape[2] * shape[3]) * model_management.dtype_size(dtype) * VAE_KL_MEM_RATIO #These are for AutoencoderKL and need tweaking (should be lower)
+        self.memory_used_decode = lambda shape, dtype: (2178 * shape[2] * shape[3] * 64) * model_management.dtype_size(dtype) * VAE_KL_MEM_RATIO
         self.downscale_ratio = 8
         self.upscale_ratio = 8
         self.latent_channels = 4
@@ -287,10 +296,12 @@ class VAE:
         self.working_dtypes = [torch.bfloat16, torch.float32]
         self.disable_offload = False
         self.not_video = False
+        self.size = None
 
         self.downscale_index_formula = None
         self.upscale_index_formula = None
         self.extra_1d_channel = None
+        self.crop_input = True
 
         if config is None:
             if "decoder.mid.block_1.mix_factor" in sd:
@@ -542,6 +553,25 @@ class VAE:
                 self.latent_channels = 3
                 self.latent_dim = 2
                 self.output_channels = 3
+            elif "vocoder.activation_post.downsample.lowpass.filter" in sd: #MMAudio VAE
+                sample_rate = 16000
+                if sample_rate == 16000:
+                    mode = '16k'
+                else:
+                    mode = '44k'
+
+                self.first_stage_model = comfy.ldm.mmaudio.vae.autoencoder.AudioAutoencoder(mode=mode)
+                self.memory_used_encode = lambda shape, dtype: (30 * shape[2]) * model_management.dtype_size(dtype)
+                self.memory_used_decode = lambda shape, dtype: (90 * shape[2] * 1411.2) * model_management.dtype_size(dtype)
+                self.latent_channels = 20
+                self.output_channels = 2
+                self.upscale_ratio = 512 * (44100 / sample_rate)
+                self.downscale_ratio = 512 * (44100 / sample_rate)
+                self.latent_dim = 1
+                self.process_output = lambda audio: audio
+                self.process_input = lambda audio: audio
+                self.working_dtypes = [torch.float32]
+                self.crop_input = False
             else:
                 logging.warning("WARNING: No VAE weights detected, VAE not initalized.")
                 self.first_stage_model = None
@@ -569,12 +599,25 @@ class VAE:
 
         self.patcher = comfy.model_patcher.ModelPatcher(self.first_stage_model, load_device=self.device, offload_device=offload_device)
         logging.info("VAE load device: {}, offload device: {}, dtype: {}".format(self.device, offload_device, self.vae_dtype))
+        self.model_size()
+
+    def model_size(self):
+        if self.size is not None:
+            return self.size
+        self.size = comfy.model_management.module_size(self.first_stage_model)
+        return self.size
+
+    def get_ram_usage(self):
+        return self.model_size()
 
     def throw_exception_if_invalid(self):
         if self.first_stage_model is None:
             raise RuntimeError("ERROR: VAE is invalid: None\n\nIf the VAE is from a checkpoint loader node your checkpoint does not contain a valid VAE.")
 
     def vae_encode_crop_pixels(self, pixels):
+        if not self.crop_input:
+            return pixels
+
         downscale_ratio = self.spacial_compression_encode()
 
         dims = pixels.shape[1:-1]
@@ -1233,7 +1276,7 @@ def load_state_dict_guess_config(sd, output_vae=True, output_clip=True, output_c
     return (model_patcher, clip, vae, clipvision)
 
 
-def load_diffusion_model_state_dict(sd, model_options={}):
+def load_diffusion_model_state_dict(sd, model_options={}, metadata=None):
     """
     Loads a UNet diffusion model from a state dictionary, supporting both diffusers and regular formats.
 
@@ -1267,7 +1310,7 @@ def load_diffusion_model_state_dict(sd, model_options={}):
     weight_dtype = comfy.utils.weight_dtype(sd)
 
     load_device = model_management.get_torch_device()
-    model_config = model_detection.model_config_from_unet(sd, "")
+    model_config = model_detection.model_config_from_unet(sd, "", metadata=metadata)
 
     if model_config is not None:
         new_sd = sd
@@ -1301,7 +1344,10 @@ def load_diffusion_model_state_dict(sd, model_options={}):
     else:
         unet_dtype = dtype
 
-    manual_cast_dtype = model_management.unet_manual_cast(unet_dtype, load_device, model_config.supported_inference_dtypes)
+    if model_config.layer_quant_config is not None:
+        manual_cast_dtype = model_management.unet_manual_cast(None, load_device, model_config.supported_inference_dtypes)
+    else:
+        manual_cast_dtype = model_management.unet_manual_cast(unet_dtype, load_device, model_config.supported_inference_dtypes)
     model_config.set_inference_dtype(unet_dtype, manual_cast_dtype)
     model_config.custom_operations = model_options.get("custom_operations", model_config.custom_operations)
     if model_options.get("fp8_optimizations", False):
@@ -1317,8 +1363,8 @@ def load_diffusion_model_state_dict(sd, model_options={}):
 
 
 def load_diffusion_model(unet_path, model_options={}):
-    sd = comfy.utils.load_torch_file(unet_path)
-    model = load_diffusion_model_state_dict(sd, model_options=model_options)
+    sd, metadata = comfy.utils.load_torch_file(unet_path, return_metadata=True)
+    model = load_diffusion_model_state_dict(sd, model_options=model_options, metadata=metadata)
     if model is None:
         logging.error("ERROR UNSUPPORTED DIFFUSION MODEL {}".format(unet_path))
         raise RuntimeError("ERROR: Could not detect model type of: {}\n{}".format(unet_path, model_detection_error_hint(unet_path, sd)))

comfy/supported_models_base.py

@@ -50,6 +50,7 @@ class BASE:
     manual_cast_dtype = None
     custom_operations = None
     scaled_fp8 = None
+    layer_quant_config = None  # Per-layer quantization configuration for mixed precision
     optimizations = {"fp8": False}
 
     @classmethod

comfy/utils.py

@@ -39,7 +39,11 @@ if hasattr(torch.serialization, "add_safe_globals"):  # TODO: this was added in
         pass
     ModelCheckpoint.__module__ = "pytorch_lightning.callbacks.model_checkpoint"
 
-    from numpy.core.multiarray import scalar
+    def scalar(*args, **kwargs):
+        from numpy.core.multiarray import scalar as sc
+        return sc(*args, **kwargs)
+    scalar.__module__ = "numpy.core.multiarray"
+
     from numpy import dtype
     from numpy.dtypes import Float64DType
     from _codecs import encode
@@ -1102,3 +1106,25 @@ def upscale_dit_mask(mask: torch.Tensor, img_size_in, img_size_out):
             dim=1
         )
         return out
+
+def pack_latents(latents):
+    latent_shapes = []
+    tensors = []
+    for tensor in latents:
+        latent_shapes.append(tensor.shape)
+        tensors.append(tensor.reshape(tensor.shape[0], 1, -1))
+
+    latent = torch.cat(tensors, dim=-1)
+    return latent, latent_shapes
+
+def unpack_latents(combined_latent, latent_shapes):
+    if len(latent_shapes) > 1:
+        output_tensors = []
+        for shape in latent_shapes:
+            cut = math.prod(shape[1:])
+            tens = combined_latent[:, :, :cut]
+            combined_latent = combined_latent[:, :, cut:]
+            output_tensors.append(tens.reshape([tens.shape[0]] + list(shape)[1:]))
+    else:
+        output_tensors = combined_latent
+    return output_tensors

comfy_api/latest/__init__.py

@@ -114,7 +114,9 @@ if TYPE_CHECKING:
     ComfyAPISync: Type[comfy_api.latest.generated.ComfyAPISyncStub.ComfyAPISyncStub]
 ComfyAPISync = create_sync_class(ComfyAPI_latest)
 
-comfy_io = io  # create the new alias for io
+# create new aliases for io and ui
+IO = io
+UI = ui
 
 __all__ = [
     "ComfyAPI",
@@ -124,6 +126,7 @@ __all__ = [
     "Types",
     "ComfyExtension",
     "io",
-    "comfy_io",
+    "IO",
     "ui",
+    "UI",
 ]

comfy_api_nodes/apinode_utils.py

@@ -1,704 +0,0 @@
-from __future__ import annotations
-import aiohttp
-import io
-import logging
-import mimetypes
-from typing import Optional, Union
-from comfy.utils import common_upscale
-from comfy_api.input_impl import VideoFromFile
-from comfy_api.util import VideoContainer, VideoCodec
-from comfy_api.input.video_types import VideoInput
-from comfy_api.input.basic_types import AudioInput
-from comfy_api_nodes.apis.client import (
-    ApiClient,
-    ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    UploadRequest,
-    UploadResponse,
-)
-from server import PromptServer
-from comfy.cli_args import args
-
-import numpy as np
-from PIL import Image
-import torch
-import math
-import base64
-import uuid
-from io import BytesIO
-import av
-
-
-async def download_url_to_video_output(
-    video_url: str, timeout: int = None, auth_kwargs: Optional[dict[str, str]] = None
-) -> VideoFromFile:
-    """Downloads a video from a URL and returns a `VIDEO` output.
-
-    Args:
-        video_url: The URL of the video to download.
-
-    Returns:
-        A Comfy node `VIDEO` output.
-    """
-    video_io = await download_url_to_bytesio(video_url, timeout, auth_kwargs=auth_kwargs)
-    if video_io is None:
-        error_msg = f"Failed to download video from {video_url}"
-        logging.error(error_msg)
-        raise ValueError(error_msg)
-    return VideoFromFile(video_io)
-
-
-def downscale_image_tensor(image, total_pixels=1536 * 1024) -> torch.Tensor:
-    """Downscale input image tensor to roughly the specified total pixels."""
-    samples = image.movedim(-1, 1)
-    total = int(total_pixels)
-    scale_by = math.sqrt(total / (samples.shape[3] * samples.shape[2]))
-    if scale_by >= 1:
-        return image
-    width = round(samples.shape[3] * scale_by)
-    height = round(samples.shape[2] * scale_by)
-
-    s = common_upscale(samples, width, height, "lanczos", "disabled")
-    s = s.movedim(1, -1)
-    return s
-
-
-async def validate_and_cast_response(
-    response, timeout: int = None, node_id: Union[str, None] = None
-) -> torch.Tensor:
-    """Validates and casts a response to a torch.Tensor.
-
-    Args:
-        response: The response to validate and cast.
-        timeout: Request timeout in seconds. Defaults to None (no timeout).
-
-    Returns:
-        A torch.Tensor representing the image (1, H, W, C).
-
-    Raises:
-        ValueError: If the response is not valid.
-    """
-    # validate raw JSON response
-    data = response.data
-    if not data or len(data) == 0:
-        raise ValueError("No images returned from API endpoint")
-
-    # Initialize list to store image tensors
-    image_tensors: list[torch.Tensor] = []
-
-    # Process each image in the data array
-    async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=timeout)) as session:
-        for img_data in data:
-            img_bytes: bytes
-            if img_data.b64_json:
-                img_bytes = base64.b64decode(img_data.b64_json)
-            elif img_data.url:
-                if node_id:
-                    PromptServer.instance.send_progress_text(f"Result URL: {img_data.url}", node_id)
-                async with session.get(img_data.url) as resp:
-                    if resp.status != 200:
-                        raise ValueError("Failed to download generated image")
-                    img_bytes = await resp.read()
-            else:
-                raise ValueError("Invalid image payload – neither URL nor base64 data present.")
-
-            pil_img = Image.open(BytesIO(img_bytes)).convert("RGBA")
-            arr = np.asarray(pil_img).astype(np.float32) / 255.0
-            image_tensors.append(torch.from_numpy(arr))
-
-    return torch.stack(image_tensors, dim=0)
-
-
-def validate_aspect_ratio(
-    aspect_ratio: str,
-    minimum_ratio: float,
-    maximum_ratio: float,
-    minimum_ratio_str: str,
-    maximum_ratio_str: str,
-) -> float:
-    """Validates and casts an aspect ratio string to a float.
-
-    Args:
-        aspect_ratio: The aspect ratio string to validate.
-        minimum_ratio: The minimum aspect ratio.
-        maximum_ratio: The maximum aspect ratio.
-        minimum_ratio_str: The minimum aspect ratio string.
-        maximum_ratio_str: The maximum aspect ratio string.
-
-    Returns:
-        The validated and cast aspect ratio.
-
-    Raises:
-        Exception: If the aspect ratio is not valid.
-    """
-    # get ratio values
-    numbers = aspect_ratio.split(":")
-    if len(numbers) != 2:
-        raise TypeError(
-            f"Aspect ratio must be in the format X:Y, such as 16:9, but was {aspect_ratio}."
-        )
-    try:
-        numerator = int(numbers[0])
-        denominator = int(numbers[1])
-    except ValueError as exc:
-        raise TypeError(
-            f"Aspect ratio must contain numbers separated by ':', such as 16:9, but was {aspect_ratio}."
-        ) from exc
-    calculated_ratio = numerator / denominator
-    # if not close to minimum and maximum, check bounds
-    if not math.isclose(calculated_ratio, minimum_ratio) or not math.isclose(
-        calculated_ratio, maximum_ratio
-    ):
-        if calculated_ratio < minimum_ratio:
-            raise TypeError(
-                f"Aspect ratio cannot reduce to any less than {minimum_ratio_str} ({minimum_ratio}), but was {aspect_ratio} ({calculated_ratio})."
-            )
-        if calculated_ratio > maximum_ratio:
-            raise TypeError(
-                f"Aspect ratio cannot reduce to any greater than {maximum_ratio_str} ({maximum_ratio}), but was {aspect_ratio} ({calculated_ratio})."
-            )
-    return aspect_ratio
-
-
-def mimetype_to_extension(mime_type: str) -> str:
-    """Converts a MIME type to a file extension."""
-    return mime_type.split("/")[-1].lower()
-
-
-async def download_url_to_bytesio(
-    url: str, timeout: int = None, auth_kwargs: Optional[dict[str, str]] = None
-) -> BytesIO:
-    """Downloads content from a URL using requests and returns it as BytesIO.
-
-    Args:
-        url: The URL to download.
-        timeout: Request timeout in seconds. Defaults to None (no timeout).
-
-    Returns:
-        BytesIO object containing the downloaded content.
-    """
-    headers = {}
-    if url.startswith("/proxy/"):
-        url = str(args.comfy_api_base).rstrip("/") + url
-        auth_token = auth_kwargs.get("auth_token")
-        comfy_api_key = auth_kwargs.get("comfy_api_key")
-        if auth_token:
-            headers["Authorization"] = f"Bearer {auth_token}"
-        elif comfy_api_key:
-            headers["X-API-KEY"] = comfy_api_key
-    timeout_cfg = aiohttp.ClientTimeout(total=timeout) if timeout else None
-    async with aiohttp.ClientSession(timeout=timeout_cfg) as session:
-        async with session.get(url, headers=headers) as resp:
-            resp.raise_for_status()  # Raises HTTPError for bad responses (4XX or 5XX)
-            return BytesIO(await resp.read())
-
-
-def bytesio_to_image_tensor(image_bytesio: BytesIO, mode: str = "RGBA") -> torch.Tensor:
-    """Converts image data from BytesIO to a torch.Tensor.
-
-    Args:
-        image_bytesio: BytesIO object containing the image data.
-        mode: The PIL mode to convert the image to (e.g., "RGB", "RGBA").
-
-    Returns:
-        A torch.Tensor representing the image (1, H, W, C).
-
-    Raises:
-        PIL.UnidentifiedImageError: If the image data cannot be identified.
-        ValueError: If the specified mode is invalid.
-    """
-    image = Image.open(image_bytesio)
-    image = image.convert(mode)
-    image_array = np.array(image).astype(np.float32) / 255.0
-    return torch.from_numpy(image_array).unsqueeze(0)
-
-
-async def download_url_to_image_tensor(url: str, timeout: int = None) -> torch.Tensor:
-    """Downloads an image from a URL and returns a [B, H, W, C] tensor."""
-    image_bytesio = await download_url_to_bytesio(url, timeout)
-    return bytesio_to_image_tensor(image_bytesio)
-
-
-def process_image_response(response_content: bytes | str) -> torch.Tensor:
-    """Uses content from a Response object and converts it to a torch.Tensor"""
-    return bytesio_to_image_tensor(BytesIO(response_content))
-
-
-def _tensor_to_pil(image: torch.Tensor, total_pixels: int = 2048 * 2048) -> Image.Image:
-    """Converts a single torch.Tensor image [H, W, C] to a PIL Image, optionally downscaling."""
-    if len(image.shape) > 3:
-        image = image[0]
-    # TODO: remove alpha if not allowed and present
-    input_tensor = image.cpu()
-    input_tensor = downscale_image_tensor(
-        input_tensor.unsqueeze(0), total_pixels=total_pixels
-    ).squeeze()
-    image_np = (input_tensor.numpy() * 255).astype(np.uint8)
-    img = Image.fromarray(image_np)
-    return img
-
-
-def _pil_to_bytesio(img: Image.Image, mime_type: str = "image/png") -> BytesIO:
-    """Converts a PIL Image to a BytesIO object."""
-    if not mime_type:
-        mime_type = "image/png"
-
-    img_byte_arr = io.BytesIO()
-    # Derive PIL format from MIME type (e.g., 'image/png' -> 'PNG')
-    pil_format = mime_type.split("/")[-1].upper()
-    if pil_format == "JPG":
-        pil_format = "JPEG"
-    img.save(img_byte_arr, format=pil_format)
-    img_byte_arr.seek(0)
-    return img_byte_arr
-
-
-def tensor_to_bytesio(
-    image: torch.Tensor,
-    name: Optional[str] = None,
-    total_pixels: int = 2048 * 2048,
-    mime_type: str = "image/png",
-) -> BytesIO:
-    """Converts a torch.Tensor image to a named BytesIO object.
-
-    Args:
-        image: Input torch.Tensor image.
-        name: Optional filename for the BytesIO object.
-        total_pixels: Maximum total pixels for potential downscaling.
-        mime_type: Target image MIME type (e.g., 'image/png', 'image/jpeg', 'image/webp', 'video/mp4').
-
-    Returns:
-        Named BytesIO object containing the image data, with pointer set to the start of buffer.
-    """
-    if not mime_type:
-        mime_type = "image/png"
-
-    pil_image = _tensor_to_pil(image, total_pixels=total_pixels)
-    img_binary = _pil_to_bytesio(pil_image, mime_type=mime_type)
-    img_binary.name = (
-        f"{name if name else uuid.uuid4()}.{mimetype_to_extension(mime_type)}"
-    )
-    return img_binary
-
-
-def tensor_to_base64_string(
-    image_tensor: torch.Tensor,
-    total_pixels: int = 2048 * 2048,
-    mime_type: str = "image/png",
-) -> str:
-    """Convert [B, H, W, C] or [H, W, C] tensor to a base64 string.
-
-    Args:
-        image_tensor: Input torch.Tensor image.
-        total_pixels: Maximum total pixels for potential downscaling.
-        mime_type: Target image MIME type (e.g., 'image/png', 'image/jpeg', 'image/webp', 'video/mp4').
-
-    Returns:
-        Base64 encoded string of the image.
-    """
-    pil_image = _tensor_to_pil(image_tensor, total_pixels=total_pixels)
-    img_byte_arr = _pil_to_bytesio(pil_image, mime_type=mime_type)
-    img_bytes = img_byte_arr.getvalue()
-    # Encode bytes to base64 string
-    base64_encoded_string = base64.b64encode(img_bytes).decode("utf-8")
-    return base64_encoded_string
-
-
-def tensor_to_data_uri(
-    image_tensor: torch.Tensor,
-    total_pixels: int = 2048 * 2048,
-    mime_type: str = "image/png",
-) -> str:
-    """Converts a tensor image to a Data URI string.
-
-    Args:
-        image_tensor: Input torch.Tensor image.
-        total_pixels: Maximum total pixels for potential downscaling.
-        mime_type: Target image MIME type (e.g., 'image/png', 'image/jpeg', 'image/webp').
-
-    Returns:
-        Data URI string (e.g., 'data:image/png;base64,...').
-    """
-    base64_string = tensor_to_base64_string(image_tensor, total_pixels, mime_type)
-    return f"data:{mime_type};base64,{base64_string}"
-
-
-def text_filepath_to_base64_string(filepath: str) -> str:
-    """Converts a text file to a base64 string."""
-    with open(filepath, "rb") as f:
-        file_content = f.read()
-    return base64.b64encode(file_content).decode("utf-8")
-
-
-def text_filepath_to_data_uri(filepath: str) -> str:
-    """Converts a text file to a data URI."""
-    base64_string = text_filepath_to_base64_string(filepath)
-    mime_type, _ = mimetypes.guess_type(filepath)
-    if mime_type is None:
-        mime_type = "application/octet-stream"
-    return f"data:{mime_type};base64,{base64_string}"
-
-
-async def upload_file_to_comfyapi(
-    file_bytes_io: BytesIO,
-    filename: str,
-    upload_mime_type: Optional[str],
-    auth_kwargs: Optional[dict[str, str]] = None,
-) -> str:
-    """
-    Uploads a single file to ComfyUI API and returns its download URL.
-
-    Args:
-        file_bytes_io: BytesIO object containing the file data.
-        filename: The filename of the file.
-        upload_mime_type: MIME type of the file.
-        auth_kwargs: Optional authentication token(s).
-
-    Returns:
-        The download URL for the uploaded file.
-    """
-    if upload_mime_type is None:
-        request_object = UploadRequest(file_name=filename)
-    else:
-        request_object = UploadRequest(file_name=filename, content_type=upload_mime_type)
-    operation = SynchronousOperation(
-        endpoint=ApiEndpoint(
-            path="/customers/storage",
-            method=HttpMethod.POST,
-            request_model=UploadRequest,
-            response_model=UploadResponse,
-        ),
-        request=request_object,
-        auth_kwargs=auth_kwargs,
-    )
-
-    response: UploadResponse = await operation.execute()
-    await ApiClient.upload_file(response.upload_url, file_bytes_io, content_type=upload_mime_type)
-    return response.download_url
-
-
-def video_to_base64_string(
-    video: VideoInput,
-    container_format: VideoContainer = None,
-    codec: VideoCodec = None
-) -> str:
-    """
-    Converts a video input to a base64 string.
-
-    Args:
-        video: The video input to convert
-        container_format: Optional container format to use (defaults to video.container if available)
-        codec: Optional codec to use (defaults to video.codec if available)
-    """
-    video_bytes_io = io.BytesIO()
-
-    # Use provided format/codec if specified, otherwise use video's own if available
-    format_to_use = container_format if container_format is not None else getattr(video, 'container', VideoContainer.MP4)
-    codec_to_use = codec if codec is not None else getattr(video, 'codec', VideoCodec.H264)
-
-    video.save_to(video_bytes_io, format=format_to_use, codec=codec_to_use)
-    video_bytes_io.seek(0)
-    return base64.b64encode(video_bytes_io.getvalue()).decode("utf-8")
-
-
-async def upload_video_to_comfyapi(
-    video: VideoInput,
-    auth_kwargs: Optional[dict[str, str]] = None,
-    container: VideoContainer = VideoContainer.MP4,
-    codec: VideoCodec = VideoCodec.H264,
-    max_duration: Optional[int] = None,
-) -> str:
-    """
-    Uploads a single video to ComfyUI API and returns its download URL.
-    Uses the specified container and codec for saving the video before upload.
-
-    Args:
-        video: VideoInput object (Comfy VIDEO type).
-        auth_kwargs: Optional authentication token(s).
-        container: The video container format to use (default: MP4).
-        codec: The video codec to use (default: H264).
-        max_duration: Optional maximum duration of the video in seconds. If the video is longer than this, an error will be raised.
-
-    Returns:
-        The download URL for the uploaded video file.
-    """
-    if max_duration is not None:
-        try:
-            actual_duration = video.duration_seconds
-            if actual_duration is not None and actual_duration > max_duration:
-                raise ValueError(
-                    f"Video duration ({actual_duration:.2f}s) exceeds the maximum allowed ({max_duration}s)."
-                )
-        except Exception as e:
-            logging.error("Error getting video duration: %s", str(e))
-            raise ValueError(f"Could not verify video duration from source: {e}") from e
-
-    upload_mime_type = f"video/{container.value.lower()}"
-    filename = f"uploaded_video.{container.value.lower()}"
-
-    # Convert VideoInput to BytesIO using specified container/codec
-    video_bytes_io = io.BytesIO()
-    video.save_to(video_bytes_io, format=container, codec=codec)
-    video_bytes_io.seek(0)
-
-    return await upload_file_to_comfyapi(video_bytes_io, filename, upload_mime_type, auth_kwargs)
-
-
-def audio_tensor_to_contiguous_ndarray(waveform: torch.Tensor) -> np.ndarray:
-    """
-    Prepares audio waveform for av library by converting to a contiguous numpy array.
-
-    Args:
-        waveform: a tensor of shape (1, channels, samples) derived from a Comfy `AUDIO` type.
-
-    Returns:
-        Contiguous numpy array of the audio waveform. If the audio was batched,
-            the first item is taken.
-    """
-    if waveform.ndim != 3 or waveform.shape[0] != 1:
-        raise ValueError("Expected waveform tensor shape (1, channels, samples)")
-
-    # If batch is > 1, take first item
-    if waveform.shape[0] > 1:
-        waveform = waveform[0]
-
-    # Prepare for av: remove batch dim, move to CPU, make contiguous, convert to numpy array
-    audio_data_np = waveform.squeeze(0).cpu().contiguous().numpy()
-    if audio_data_np.dtype != np.float32:
-        audio_data_np = audio_data_np.astype(np.float32)
-
-    return audio_data_np
-
-
-def audio_ndarray_to_bytesio(
-    audio_data_np: np.ndarray,
-    sample_rate: int,
-    container_format: str = "mp4",
-    codec_name: str = "aac",
-) -> BytesIO:
-    """
-    Encodes a numpy array of audio data into a BytesIO object.
-    """
-    audio_bytes_io = io.BytesIO()
-    with av.open(audio_bytes_io, mode="w", format=container_format) as output_container:
-        audio_stream = output_container.add_stream(codec_name, rate=sample_rate)
-        frame = av.AudioFrame.from_ndarray(
-            audio_data_np,
-            format="fltp",
-            layout="stereo" if audio_data_np.shape[0] > 1 else "mono",
-        )
-        frame.sample_rate = sample_rate
-        frame.pts = 0
-
-        for packet in audio_stream.encode(frame):
-            output_container.mux(packet)
-
-        # Flush stream
-        for packet in audio_stream.encode(None):
-            output_container.mux(packet)
-
-    audio_bytes_io.seek(0)
-    return audio_bytes_io
-
-
-async def upload_audio_to_comfyapi(
-    audio: AudioInput,
-    auth_kwargs: Optional[dict[str, str]] = None,
-    container_format: str = "mp4",
-    codec_name: str = "aac",
-    mime_type: str = "audio/mp4",
-    filename: str = "uploaded_audio.mp4",
-) -> str:
-    """
-    Uploads a single audio input to ComfyUI API and returns its download URL.
-    Encodes the raw waveform into the specified format before uploading.
-
-    Args:
-        audio: a Comfy `AUDIO` type (contains waveform tensor and sample_rate)
-        auth_kwargs: Optional authentication token(s).
-
-    Returns:
-        The download URL for the uploaded audio file.
-    """
-    sample_rate: int = audio["sample_rate"]
-    waveform: torch.Tensor = audio["waveform"]
-    audio_data_np = audio_tensor_to_contiguous_ndarray(waveform)
-    audio_bytes_io = audio_ndarray_to_bytesio(
-        audio_data_np, sample_rate, container_format, codec_name
-    )
-
-    return await upload_file_to_comfyapi(audio_bytes_io, filename, mime_type, auth_kwargs)
-
-
-def f32_pcm(wav: torch.Tensor) -> torch.Tensor:
-    """Convert audio to float 32 bits PCM format. Copy-paste from nodes_audio.py file."""
-    if wav.dtype.is_floating_point:
-        return wav
-    elif wav.dtype == torch.int16:
-        return wav.float() / (2 ** 15)
-    elif wav.dtype == torch.int32:
-        return wav.float() / (2 ** 31)
-    raise ValueError(f"Unsupported wav dtype: {wav.dtype}")
-
-
-def audio_bytes_to_audio_input(audio_bytes: bytes,) -> dict:
-    """
-    Decode any common audio container from bytes using PyAV and return
-    a Comfy AUDIO dict: {"waveform": [1, C, T] float32, "sample_rate": int}.
-    """
-    with av.open(io.BytesIO(audio_bytes)) as af:
-        if not af.streams.audio:
-            raise ValueError("No audio stream found in response.")
-        stream = af.streams.audio[0]
-
-        in_sr = int(stream.codec_context.sample_rate)
-        out_sr = in_sr
-
-        frames: list[torch.Tensor] = []
-        n_channels = stream.channels or 1
-
-        for frame in af.decode(streams=stream.index):
-            arr = frame.to_ndarray()  # shape can be [C, T] or [T, C] or [T]
-            buf = torch.from_numpy(arr)
-            if buf.ndim == 1:
-                buf = buf.unsqueeze(0)  # [T] -> [1, T]
-            elif buf.shape[0] != n_channels and buf.shape[-1] == n_channels:
-                buf = buf.transpose(0, 1).contiguous()  # [T, C] -> [C, T]
-            elif buf.shape[0] != n_channels:
-                buf = buf.reshape(-1, n_channels).t().contiguous()  # fallback to [C, T]
-            frames.append(buf)
-
-    if not frames:
-        raise ValueError("Decoded zero audio frames.")
-
-    wav = torch.cat(frames, dim=1)  # [C, T]
-    wav = f32_pcm(wav)
-    return {"waveform": wav.unsqueeze(0).contiguous(), "sample_rate": out_sr}
-
-
-def audio_input_to_mp3(audio: AudioInput) -> io.BytesIO:
-    waveform = audio["waveform"].cpu()
-
-    output_buffer = io.BytesIO()
-    output_container = av.open(output_buffer, mode='w', format="mp3")
-
-    out_stream = output_container.add_stream("libmp3lame", rate=audio["sample_rate"])
-    out_stream.bit_rate = 320000
-
-    frame = av.AudioFrame.from_ndarray(waveform.movedim(0, 1).reshape(1, -1).float().numpy(), format='flt', layout='mono' if waveform.shape[0] == 1 else 'stereo')
-    frame.sample_rate = audio["sample_rate"]
-    frame.pts = 0
-    output_container.mux(out_stream.encode(frame))
-    output_container.mux(out_stream.encode(None))
-    output_container.close()
-    output_buffer.seek(0)
-    return output_buffer
-
-
-def audio_to_base64_string(
-    audio: AudioInput, container_format: str = "mp4", codec_name: str = "aac"
-) -> str:
-    """Converts an audio input to a base64 string."""
-    sample_rate: int = audio["sample_rate"]
-    waveform: torch.Tensor = audio["waveform"]
-    audio_data_np = audio_tensor_to_contiguous_ndarray(waveform)
-    audio_bytes_io = audio_ndarray_to_bytesio(
-        audio_data_np, sample_rate, container_format, codec_name
-    )
-    audio_bytes = audio_bytes_io.getvalue()
-    return base64.b64encode(audio_bytes).decode("utf-8")
-
-
-async def upload_images_to_comfyapi(
-    image: torch.Tensor,
-    max_images=8,
-    auth_kwargs: Optional[dict[str, str]] = None,
-    mime_type: Optional[str] = None,
-) -> list[str]:
-    """
-    Uploads images to ComfyUI API and returns download URLs.
-    To upload multiple images, stack them in the batch dimension first.
-
-    Args:
-        image: Input torch.Tensor image.
-        max_images: Maximum number of images to upload.
-        auth_kwargs: Optional authentication token(s).
-        mime_type: Optional MIME type for the image.
-    """
-    # if batch, try to upload each file if max_images is greater than 0
-    download_urls: list[str] = []
-    is_batch = len(image.shape) > 3
-    batch_len = image.shape[0] if is_batch else 1
-
-    for idx in range(min(batch_len, max_images)):
-        tensor = image[idx] if is_batch else image
-        img_io = tensor_to_bytesio(tensor, mime_type=mime_type)
-        url = await upload_file_to_comfyapi(img_io, img_io.name, mime_type, auth_kwargs)
-        download_urls.append(url)
-    return download_urls
-
-
-def resize_mask_to_image(
-    mask: torch.Tensor,
-    image: torch.Tensor,
-    upscale_method="nearest-exact",
-    crop="disabled",
-    allow_gradient=True,
-    add_channel_dim=False,
-):
-    """
-    Resize mask to be the same dimensions as an image, while maintaining proper format for API calls.
-    """
-    _, H, W, _ = image.shape
-    mask = mask.unsqueeze(-1)
-    mask = mask.movedim(-1, 1)
-    mask = common_upscale(
-        mask, width=W, height=H, upscale_method=upscale_method, crop=crop
-    )
-    mask = mask.movedim(1, -1)
-    if not add_channel_dim:
-        mask = mask.squeeze(-1)
-    if not allow_gradient:
-        mask = (mask > 0.5).float()
-    return mask
-
-
-def validate_string(
-    string: str,
-    strip_whitespace=True,
-    field_name="prompt",
-    min_length=None,
-    max_length=None,
-):
-    if string is None:
-        raise Exception(f"Field '{field_name}' cannot be empty.")
-    if strip_whitespace:
-        string = string.strip()
-    if min_length and len(string) < min_length:
-        raise Exception(
-            f"Field '{field_name}' cannot be shorter than {min_length} characters; was {len(string)} characters long."
-        )
-    if max_length and len(string) > max_length:
-        raise Exception(
-            f" Field '{field_name} cannot be longer than {max_length} characters; was {len(string)} characters long."
-        )
-
-
-def image_tensor_pair_to_batch(
-    image1: torch.Tensor, image2: torch.Tensor
-) -> torch.Tensor:
-    """
-    Converts a pair of image tensors to a batch tensor.
-    If the images are not the same size, the smaller image is resized to
-    match the larger image.
-    """
-    if image1.shape[1:] != image2.shape[1:]:
-        image2 = common_upscale(
-            image2.movedim(-1, 1),
-            image1.shape[2],
-            image1.shape[1],
-            "bilinear",
-            "center",
-        ).movedim(1, -1)
-    return torch.cat((image1, image2), dim=0)

comfy_api_nodes/apis/bfl_api.py

@@ -50,44 +50,6 @@ class BFLFluxFillImageRequest(BaseModel):
     mask: str = Field(None, description='A Base64-encoded string representing the mask of the areas you with to modify.')
 
 
-class BFLFluxCannyImageRequest(BaseModel):
-    prompt: str = Field(..., description='Text prompt for image generation')
-    prompt_upsampling: Optional[bool] = Field(
-        None, description='Whether to perform upsampling on the prompt. If active, automatically modifies the prompt for more creative generation.'
-    )
-    canny_low_threshold: Optional[int] = Field(None, description='Low threshold for Canny edge detection')
-    canny_high_threshold: Optional[int] = Field(None, description='High threshold for Canny edge detection')
-    seed: Optional[int] = Field(None, description='The seed value for reproducibility.')
-    steps: conint(ge=15, le=50) = Field(..., description='Number of steps for the image generation process')
-    guidance: confloat(ge=1, le=100) = Field(..., description='Guidance strength for the image generation process')
-    safety_tolerance: Optional[conint(ge=0, le=6)] = Field(
-        6, description='Tolerance level for input and output moderation. Between 0 and 6, 0 being most strict, 6 being least strict. Defaults to 2.'
-    )
-    output_format: Optional[BFLOutputFormat] = Field(
-        BFLOutputFormat.png, description="Output format for the generated image. Can be 'jpeg' or 'png'.", examples=['png']
-    )
-    control_image: Optional[str] = Field(None, description='Base64 encoded image to use as control input if no preprocessed image is provided')
-    preprocessed_image: Optional[str] = Field(None, description='Optional pre-processed image that will bypass the control preprocessing step')
-
-
-class BFLFluxDepthImageRequest(BaseModel):
-    prompt: str = Field(..., description='Text prompt for image generation')
-    prompt_upsampling: Optional[bool] = Field(
-        None, description='Whether to perform upsampling on the prompt. If active, automatically modifies the prompt for more creative generation.'
-    )
-    seed: Optional[int] = Field(None, description='The seed value for reproducibility.')
-    steps: conint(ge=15, le=50) = Field(..., description='Number of steps for the image generation process')
-    guidance: confloat(ge=1, le=100) = Field(..., description='Guidance strength for the image generation process')
-    safety_tolerance: Optional[conint(ge=0, le=6)] = Field(
-        6, description='Tolerance level for input and output moderation. Between 0 and 6, 0 being most strict, 6 being least strict. Defaults to 2.'
-    )
-    output_format: Optional[BFLOutputFormat] = Field(
-        BFLOutputFormat.png, description="Output format for the generated image. Can be 'jpeg' or 'png'.", examples=['png']
-    )
-    control_image: Optional[str] = Field(None, description='Base64 encoded image to use as control input if no preprocessed image is provided')
-    preprocessed_image: Optional[str] = Field(None, description='Optional pre-processed image that will bypass the control preprocessing step')
-
-
 class BFLFluxProGenerateRequest(BaseModel):
     prompt: str = Field(..., description='The text prompt for image generation.')
     prompt_upsampling: Optional[bool] = Field(
@@ -160,15 +122,8 @@ class BFLStatus(str, Enum):
     error = "Error"
 
 
-class BFLFluxProStatusResponse(BaseModel):
+class BFLFluxStatusResponse(BaseModel):
     id: str = Field(..., description="The unique identifier for the generation task.")
     status: BFLStatus = Field(..., description="The status of the task.")
-    result: Optional[Dict[str, Any]] = Field(
-        None, description="The result of the task (null if not completed)."
-    )
-    progress: confloat(ge=0.0, le=1.0) = Field(
-        ..., description="The progress of the task (0.0 to 1.0)."
-    )
-    details: Optional[Dict[str, Any]] = Field(
-        None, description="Additional details about the task (null if not available)."
-    )
+    result: Optional[Dict[str, Any]] = Field(None, description="The result of the task (null if not completed).")
+    progress: Optional[float] = Field(None, description="The progress of the task (0.0 to 1.0).", ge=0.0, le=1.0)

comfy_api_nodes/apis/client.py

@@ -782,9 +782,11 @@ class PollingOperation(Generic[T, R]):
         poll_endpoint: ApiEndpoint[EmptyRequest, R],
         completed_statuses: list[str],
         failed_statuses: list[str],
+        *,
         status_extractor: Callable[[R], Optional[str]],
         progress_extractor: Callable[[R], Optional[float]] | None = None,
         result_url_extractor: Callable[[R], Optional[str]] | None = None,
+        price_extractor: Callable[[R], Optional[float]] | None = None,
         request: Optional[T] = None,
         api_base: str | None = None,
         auth_token: Optional[str] = None,
@@ -815,10 +817,12 @@ class PollingOperation(Generic[T, R]):
         self.status_extractor = status_extractor or (lambda x: getattr(x, "status", None))
         self.progress_extractor = progress_extractor
         self.result_url_extractor = result_url_extractor
+        self.price_extractor = price_extractor
         self.node_id = node_id
         self.completed_statuses = completed_statuses
         self.failed_statuses = failed_statuses
         self.final_response: Optional[R] = None
+        self.extracted_price: Optional[float] = None
 
     async def execute(self, client: Optional[ApiClient] = None) -> R:
         owns_client = client is None
@@ -840,6 +844,8 @@ class PollingOperation(Generic[T, R]):
     def _display_text_on_node(self, text: str):
         if not self.node_id:
             return
+        if self.extracted_price is not None:
+            text = f"Price: ${self.extracted_price}\n{text}"
         PromptServer.instance.send_progress_text(text, self.node_id)
 
     def _display_time_progress_on_node(self, time_completed: int | float):
@@ -877,9 +883,7 @@ class PollingOperation(Generic[T, R]):
             try:
                 logging.debug("[DEBUG] Polling attempt #%s", poll_count)
 
-                request_dict = (
-                    None if self.request is None else self.request.model_dump(exclude_none=True)
-                )
+                request_dict = None if self.request is None else self.request.model_dump(exclude_none=True)
 
                 if poll_count == 1:
                     logging.debug(
@@ -912,6 +916,11 @@ class PollingOperation(Generic[T, R]):
                     if new_progress is not None:
                         progress.update_absolute(new_progress, total=PROGRESS_BAR_MAX)
 
+                if self.price_extractor:
+                    price = self.price_extractor(response_obj)
+                    if price is not None:
+                        self.extracted_price = price
+
                 if status == TaskStatus.COMPLETED:
                     message = "Task completed successfully"
                     if self.result_url_extractor:

comfy_api_nodes/apis/gemini_api.py

@@ -1,19 +1,22 @@
-from __future__ import annotations
-
-from typing import List, Optional
+from typing import Optional
 
 from comfy_api_nodes.apis import GeminiGenerationConfig, GeminiContent, GeminiSafetySetting, GeminiSystemInstructionContent, GeminiTool, GeminiVideoMetadata
 from pydantic import BaseModel
 
 
+class GeminiImageConfig(BaseModel):
+    aspectRatio: Optional[str] = None
+
+
 class GeminiImageGenerationConfig(GeminiGenerationConfig):
-    responseModalities: Optional[List[str]] = None
+    responseModalities: Optional[list[str]] = None
+    imageConfig: Optional[GeminiImageConfig] = None
 
 
 class GeminiImageGenerateContentRequest(BaseModel):
-    contents: List[GeminiContent]
+    contents: list[GeminiContent]
     generationConfig: Optional[GeminiImageGenerationConfig] = None
-    safetySettings: Optional[List[GeminiSafetySetting]] = None
+    safetySettings: Optional[list[GeminiSafetySetting]] = None
     systemInstruction: Optional[GeminiSystemInstructionContent] = None
-    tools: Optional[List[GeminiTool]] = None
+    tools: Optional[list[GeminiTool]] = None
     videoMetadata: Optional[GeminiVideoMetadata] = None

comfy_api_nodes/apis/minimax_api.py

@@ -0,0 +1,120 @@
+from enum import Enum
+from typing import Optional
+
+from pydantic import BaseModel, Field
+
+
+class MinimaxBaseResponse(BaseModel):
+    status_code: int = Field(
+        ...,
+        description='Status code. 0 indicates success, other values indicate errors.',
+    )
+    status_msg: str = Field(
+        ..., description='Specific error details or success message.'
+    )
+
+
+class File(BaseModel):
+    bytes: Optional[int] = Field(None, description='File size in bytes')
+    created_at: Optional[int] = Field(
+        None, description='Unix timestamp when the file was created, in seconds'
+    )
+    download_url: Optional[str] = Field(
+        None, description='The URL to download the video'
+    )
+    backup_download_url: Optional[str] = Field(
+        None, description='The backup URL to download the video'
+    )
+
+    file_id: Optional[int] = Field(None, description='Unique identifier for the file')
+    filename: Optional[str] = Field(None, description='The name of the file')
+    purpose: Optional[str] = Field(None, description='The purpose of using the file')
+
+
+class MinimaxFileRetrieveResponse(BaseModel):
+    base_resp: MinimaxBaseResponse
+    file: File
+
+
+class MiniMaxModel(str, Enum):
+    T2V_01_Director = 'T2V-01-Director'
+    I2V_01_Director = 'I2V-01-Director'
+    S2V_01 = 'S2V-01'
+    I2V_01 = 'I2V-01'
+    I2V_01_live = 'I2V-01-live'
+    T2V_01 = 'T2V-01'
+    Hailuo_02 = 'MiniMax-Hailuo-02'
+
+
+class Status6(str, Enum):
+    Queueing = 'Queueing'
+    Preparing = 'Preparing'
+    Processing = 'Processing'
+    Success = 'Success'
+    Fail = 'Fail'
+
+
+class MinimaxTaskResultResponse(BaseModel):
+    base_resp: MinimaxBaseResponse
+    file_id: Optional[str] = Field(
+        None,
+        description='After the task status changes to Success, this field returns the file ID corresponding to the generated video.',
+    )
+    status: Status6 = Field(
+        ...,
+        description="Task status: 'Queueing' (in queue), 'Preparing' (task is preparing), 'Processing' (generating), 'Success' (task completed successfully), or 'Fail' (task failed).",
+    )
+    task_id: str = Field(..., description='The task ID being queried.')
+
+
+class SubjectReferenceItem(BaseModel):
+    image: Optional[str] = Field(
+        None, description='URL or base64 encoding of the subject reference image.'
+    )
+    mask: Optional[str] = Field(
+        None,
+        description='URL or base64 encoding of the mask for the subject reference image.',
+    )
+
+
+class MinimaxVideoGenerationRequest(BaseModel):
+    callback_url: Optional[str] = Field(
+        None,
+        description='Optional. URL to receive real-time status updates about the video generation task.',
+    )
+    first_frame_image: Optional[str] = Field(
+        None,
+        description='URL or base64 encoding of the first frame image. Required when model is I2V-01, I2V-01-Director, or I2V-01-live.',
+    )
+    model: MiniMaxModel = Field(
+        ...,
+        description='Required. ID of model. Options: T2V-01-Director, I2V-01-Director, S2V-01, I2V-01, I2V-01-live, T2V-01',
+    )
+    prompt: Optional[str] = Field(
+        None,
+        description='Description of the video. Should be less than 2000 characters. Supports camera movement instructions in [brackets].',
+        max_length=2000,
+    )
+    prompt_optimizer: Optional[bool] = Field(
+        True,
+        description='If true (default), the model will automatically optimize the prompt. Set to false for more precise control.',
+    )
+    subject_reference: Optional[list[SubjectReferenceItem]] = Field(
+        None,
+        description='Only available when model is S2V-01. The model will generate a video based on the subject uploaded through this parameter.',
+    )
+    duration: Optional[int] = Field(
+        None,
+        description="The length of the output video in seconds."
+    )
+    resolution: Optional[str] = Field(
+        None,
+        description="The dimensions of the video display. 1080p corresponds to 1920 x 1080 pixels, 768p corresponds to 1366 x 768 pixels."
+    )
+
+
+class MinimaxVideoGenerationResponse(BaseModel):
+    base_resp: MinimaxBaseResponse
+    task_id: str = Field(
+        ..., description='The task ID for the asynchronous video generation task.'
+    )

comfy_api_nodes/apis/tripo_api.py

@@ -1,13 +1,20 @@
 from __future__ import annotations
-from comfy_api_nodes.apis import (
-    TripoModelVersion,
-    TripoTextureQuality,
-)
 from enum import Enum
 from typing import Optional, List, Dict, Any, Union
 
 from pydantic import BaseModel, Field, RootModel
 
+class TripoModelVersion(str, Enum):
+    v2_5_20250123 = 'v2.5-20250123'
+    v2_0_20240919 = 'v2.0-20240919'
+    v1_4_20240625 = 'v1.4-20240625'
+
+
+class TripoTextureQuality(str, Enum):
+    standard = 'standard'
+    detailed = 'detailed'
+
+
 class TripoStyle(str, Enum):
     PERSON_TO_CARTOON = "person:person2cartoon"
     ANIMAL_VENOM = "animal:venom"

comfy_api_nodes/apis/veo_api.py

@@ -0,0 +1,111 @@
+from typing import Optional, Union
+from enum import Enum
+
+from pydantic import BaseModel, Field
+
+
+class Image2(BaseModel):
+    bytesBase64Encoded: str
+    gcsUri: Optional[str] = None
+    mimeType: Optional[str] = None
+
+
+class Image3(BaseModel):
+    bytesBase64Encoded: Optional[str] = None
+    gcsUri: str
+    mimeType: Optional[str] = None
+
+
+class Instance1(BaseModel):
+    image: Optional[Union[Image2, Image3]] = Field(
+        None, description='Optional image to guide video generation'
+    )
+    prompt: str = Field(..., description='Text description of the video')
+
+
+class PersonGeneration1(str, Enum):
+    ALLOW = 'ALLOW'
+    BLOCK = 'BLOCK'
+
+
+class Parameters1(BaseModel):
+    aspectRatio: Optional[str] = Field(None, examples=['16:9'])
+    durationSeconds: Optional[int] = None
+    enhancePrompt: Optional[bool] = None
+    generateAudio: Optional[bool] = Field(
+        None,
+        description='Generate audio for the video. Only supported by veo 3 models.',
+    )
+    negativePrompt: Optional[str] = None
+    personGeneration: Optional[PersonGeneration1] = None
+    sampleCount: Optional[int] = None
+    seed: Optional[int] = None
+    storageUri: Optional[str] = Field(
+        None, description='Optional Cloud Storage URI to upload the video'
+    )
+
+
+class VeoGenVidRequest(BaseModel):
+    instances: Optional[list[Instance1]] = None
+    parameters: Optional[Parameters1] = None
+
+
+class VeoGenVidResponse(BaseModel):
+    name: str = Field(
+        ...,
+        description='Operation resource name',
+        examples=[
+            'projects/PROJECT_ID/locations/us-central1/publishers/google/models/MODEL_ID/operations/a1b07c8e-7b5a-4aba-bb34-3e1ccb8afcc8'
+        ],
+    )
+
+
+class VeoGenVidPollRequest(BaseModel):
+    operationName: str = Field(
+        ...,
+        description='Full operation name (from predict response)',
+        examples=[
+            'projects/PROJECT_ID/locations/us-central1/publishers/google/models/MODEL_ID/operations/OPERATION_ID'
+        ],
+    )
+
+
+class Video(BaseModel):
+    bytesBase64Encoded: Optional[str] = Field(
+        None, description='Base64-encoded video content'
+    )
+    gcsUri: Optional[str] = Field(None, description='Cloud Storage URI of the video')
+    mimeType: Optional[str] = Field(None, description='Video MIME type')
+
+
+class Error1(BaseModel):
+    code: Optional[int] = Field(None, description='Error code')
+    message: Optional[str] = Field(None, description='Error message')
+
+
+class Response1(BaseModel):
+    field_type: Optional[str] = Field(
+        None,
+        alias='@type',
+        examples=[
+            'type.googleapis.com/cloud.ai.large_models.vision.GenerateVideoResponse'
+        ],
+    )
+    raiMediaFilteredCount: Optional[int] = Field(
+        None, description='Count of media filtered by responsible AI policies'
+    )
+    raiMediaFilteredReasons: Optional[list[str]] = Field(
+        None, description='Reasons why media was filtered by responsible AI policies'
+    )
+    videos: Optional[list[Video]] = None
+
+
+class VeoGenVidPollResponse(BaseModel):
+    done: Optional[bool] = None
+    error: Optional[Error1] = Field(
+        None, description='Error details if operation failed'
+    )
+    name: Optional[str] = None
+    response: Optional[Response1] = Field(
+        None, description='The actual prediction response if done is true'
+    )

comfy_api_nodes/nodes_gemini.py

@@ -2,45 +2,47 @@
 API Nodes for Gemini Multimodal LLM Usage via Remote API
 See: https://cloud.google.com/vertex-ai/generative-ai/docs/model-reference/inference
 """
+
 from __future__ import annotations
 
-import json
-import time
-import os
-import uuid
 import base64
-from io import BytesIO
+import json
+import os
+import time
+import uuid
 from enum import Enum
-from typing import Optional, Literal
+from io import BytesIO
+from typing import Literal, Optional
 
 import torch
+from typing_extensions import override
 
 import folder_paths
-from comfy.comfy_types.node_typing import IO, ComfyNodeABC, InputTypeDict
-from server import PromptServer
+from comfy_api.latest import IO, ComfyExtension, Input
+from comfy_api.util import VideoCodec, VideoContainer
 from comfy_api_nodes.apis import (
     GeminiContent,
     GeminiGenerateContentRequest,
     GeminiGenerateContentResponse,
     GeminiInlineData,
-    GeminiPart,
     GeminiMimeType,
+    GeminiPart,
 )
-from comfy_api_nodes.apis.gemini_api import GeminiImageGenerationConfig, GeminiImageGenerateContentRequest
-from comfy_api_nodes.apis.client import (
+from comfy_api_nodes.apis.gemini_api import (
+    GeminiImageConfig,
+    GeminiImageGenerateContentRequest,
+    GeminiImageGenerationConfig,
+)
+from comfy_api_nodes.util import (
     ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-)
-from comfy_api_nodes.apinode_utils import (
-    validate_string,
     audio_to_base64_string,
-    video_to_base64_string,
-    tensor_to_base64_string,
     bytesio_to_image_tensor,
+    sync_op,
+    tensor_to_base64_string,
+    validate_string,
+    video_to_base64_string,
 )
-from comfy_api.util import VideoContainer, VideoCodec
-
+from server import PromptServer
 
 GEMINI_BASE_ENDPOINT = "/proxy/vertexai/gemini"
 GEMINI_MAX_INPUT_FILE_SIZE = 20 * 1024 * 1024  # 20 MB
@@ -63,50 +65,7 @@ class GeminiImageModel(str, Enum):
     """
 
     gemini_2_5_flash_image_preview = "gemini-2.5-flash-image-preview"
-
-
-def get_gemini_endpoint(
-    model: GeminiModel,
-) -> ApiEndpoint[GeminiGenerateContentRequest, GeminiGenerateContentResponse]:
-    """
-    Get the API endpoint for a given Gemini model.
-
-    Args:
-        model: The Gemini model to use, either as enum or string value.
-
-    Returns:
-        ApiEndpoint configured for the specific Gemini model.
-    """
-    if isinstance(model, str):
-        model = GeminiModel(model)
-    return ApiEndpoint(
-        path=f"{GEMINI_BASE_ENDPOINT}/{model.value}",
-        method=HttpMethod.POST,
-        request_model=GeminiGenerateContentRequest,
-        response_model=GeminiGenerateContentResponse,
-    )
-
-
-def get_gemini_image_endpoint(
-    model: GeminiImageModel,
-) -> ApiEndpoint[GeminiGenerateContentRequest, GeminiGenerateContentResponse]:
-    """
-    Get the API endpoint for a given Gemini model.
-
-    Args:
-        model: The Gemini model to use, either as enum or string value.
-
-    Returns:
-        ApiEndpoint configured for the specific Gemini model.
-    """
-    if isinstance(model, str):
-        model = GeminiImageModel(model)
-    return ApiEndpoint(
-        path=f"{GEMINI_BASE_ENDPOINT}/{model.value}",
-        method=HttpMethod.POST,
-        request_model=GeminiImageGenerateContentRequest,
-        response_model=GeminiGenerateContentResponse,
-    )
+    gemini_2_5_flash_image = "gemini-2.5-flash-image"
 
 
 def create_image_parts(image_input: torch.Tensor) -> list[GeminiPart]:
@@ -121,9 +80,7 @@ def create_image_parts(image_input: torch.Tensor) -> list[GeminiPart]:
     """
     image_parts: list[GeminiPart] = []
     for image_index in range(image_input.shape[0]):
-        image_as_b64 = tensor_to_base64_string(
-            image_input[image_index].unsqueeze(0)
-        )
+        image_as_b64 = tensor_to_base64_string(image_input[image_index].unsqueeze(0))
         image_parts.append(
             GeminiPart(
                 inlineData=GeminiInlineData(
@@ -135,37 +92,7 @@ def create_image_parts(image_input: torch.Tensor) -> list[GeminiPart]:
     return image_parts
 
 
-def create_text_part(text: str) -> GeminiPart:
-    """
-    Create a text part for the Gemini API request.
-
-    Args:
-        text: The text content to include in the request.
-
-    Returns:
-        A GeminiPart object with the text content.
-    """
-    return GeminiPart(text=text)
-
-
-def get_parts_from_response(
-    response: GeminiGenerateContentResponse
-) -> list[GeminiPart]:
-    """
-    Extract all parts from the Gemini API response.
-
-    Args:
-        response: The API response from Gemini.
-
-    Returns:
-        List of response parts from the first candidate.
-    """
-    return response.candidates[0].content.parts
-
-
-def get_parts_by_type(
-    response: GeminiGenerateContentResponse, part_type: Literal["text"] | str
-) -> list[GeminiPart]:
+def get_parts_by_type(response: GeminiGenerateContentResponse, part_type: Literal["text"] | str) -> list[GeminiPart]:
     """
     Filter response parts by their type.
 
@@ -177,14 +104,10 @@ def get_parts_by_type(
         List of response parts matching the requested type.
     """
     parts = []
-    for part in get_parts_from_response(response):
+    for part in response.candidates[0].content.parts:
         if part_type == "text" and hasattr(part, "text") and part.text:
             parts.append(part)
-        elif (
-            hasattr(part, "inlineData")
-            and part.inlineData
-            and part.inlineData.mimeType == part_type
-        ):
+        elif hasattr(part, "inlineData") and part.inlineData and part.inlineData.mimeType == part_type:
             parts.append(part)
         # Skip parts that don't match the requested type
     return parts
@@ -212,11 +135,11 @@ def get_image_from_response(response: GeminiGenerateContentResponse) -> torch.Te
         returned_image = bytesio_to_image_tensor(BytesIO(image_data))
         image_tensors.append(returned_image)
     if len(image_tensors) == 0:
-        return torch.zeros((1,1024,1024,4))
+        return torch.zeros((1, 1024, 1024, 4))
     return torch.cat(image_tensors, dim=0)
 
 
-class GeminiNode(ComfyNodeABC):
+class GeminiNode(IO.ComfyNode):
     """
     Node to generate text responses from a Gemini model.
 
@@ -227,96 +150,79 @@ class GeminiNode(ComfyNodeABC):
     """
 
     @classmethod
-    def INPUT_TYPES(cls) -> InputTypeDict:
-        return {
-            "required": {
-                "prompt": (
-                    IO.STRING,
-                    {
-                        "multiline": True,
-                        "default": "",
-                        "tooltip": "Text inputs to the model, used to generate a response. You can include detailed instructions, questions, or context for the model.",
-                    },
+    def define_schema(cls):
+        return IO.Schema(
+            node_id="GeminiNode",
+            display_name="Google Gemini",
+            category="api node/text/Gemini",
+            description="Generate text responses with Google's Gemini AI model. "
+            "You can provide multiple types of inputs (text, images, audio, video) "
+            "as context for generating more relevant and meaningful responses.",
+            inputs=[
+                IO.String.Input(
+                    "prompt",
+                    multiline=True,
+                    default="",
+                    tooltip="Text inputs to the model, used to generate a response. "
+                    "You can include detailed instructions, questions, or context for the model.",
                 ),
-                "model": (
-                    IO.COMBO,
-                    {
-                        "tooltip": "The Gemini model to use for generating responses.",
-                        "options": [model.value for model in GeminiModel],
-                        "default": GeminiModel.gemini_2_5_pro.value,
-                    },
+                IO.Combo.Input(
+                    "model",
+                    options=GeminiModel,
+                    default=GeminiModel.gemini_2_5_pro,
+                    tooltip="The Gemini model to use for generating responses.",
                 ),
-                "seed": (
-                    IO.INT,
-                    {
-                        "default": 42,
-                        "min": 0,
-                        "max": 0xFFFFFFFFFFFFFFFF,
-                        "control_after_generate": True,
-                        "tooltip": "When seed is fixed to a specific value, the model makes a best effort to provide the same response for repeated requests. Deterministic output isn't guaranteed. Also, changing the model or parameter settings, such as the temperature, can cause variations in the response even when you use the same seed value. By default, a random seed value is used.",
-                    },
+                IO.Int.Input(
+                    "seed",
+                    default=42,
+                    min=0,
+                    max=0xFFFFFFFFFFFFFFFF,
+                    control_after_generate=True,
+                    tooltip="When seed is fixed to a specific value, the model makes a best effort to provide "
+                    "the same response for repeated requests. Deterministic output isn't guaranteed. "
+                    "Also, changing the model or parameter settings, such as the temperature, "
+                    "can cause variations in the response even when you use the same seed value. "
+                    "By default, a random seed value is used.",
                 ),
-            },
-            "optional": {
-                "images": (
-                    IO.IMAGE,
-                    {
-                        "default": None,
-                        "tooltip": "Optional image(s) to use as context for the model. To include multiple images, you can use the Batch Images node.",
-                    },
+                IO.Image.Input(
+                    "images",
+                    optional=True,
+                    tooltip="Optional image(s) to use as context for the model. "
+                    "To include multiple images, you can use the Batch Images node.",
                 ),
-                "audio": (
-                    IO.AUDIO,
-                    {
-                        "tooltip": "Optional audio to use as context for the model.",
-                        "default": None,
-                    },
+                IO.Audio.Input(
+                    "audio",
+                    optional=True,
+                    tooltip="Optional audio to use as context for the model.",
                 ),
-                "video": (
-                    IO.VIDEO,
-                    {
-                        "tooltip": "Optional video to use as context for the model.",
-                        "default": None,
-                    },
+                IO.Video.Input(
+                    "video",
+                    optional=True,
+                    tooltip="Optional video to use as context for the model.",
                 ),
-                "files": (
-                    "GEMINI_INPUT_FILES",
-                    {
-                        "default": None,
-                        "tooltip": "Optional file(s) to use as context for the model. Accepts inputs from the Gemini Generate Content Input Files node.",
-                    },
+                IO.Custom("GEMINI_INPUT_FILES").Input(
+                    "files",
+                    optional=True,
+                    tooltip="Optional file(s) to use as context for the model. "
+                    "Accepts inputs from the Gemini Generate Content Input Files node.",
                 ),
-            },
-            "hidden": {
-                "auth_token": "AUTH_TOKEN_COMFY_ORG",
-                "comfy_api_key": "API_KEY_COMFY_ORG",
-                "unique_id": "UNIQUE_ID",
-            },
-        }
-
-    DESCRIPTION = "Generate text responses with Google's Gemini AI model. You can provide multiple types of inputs (text, images, audio, video) as context for generating more relevant and meaningful responses."
-    RETURN_TYPES = ("STRING",)
-    FUNCTION = "api_call"
-    CATEGORY = "api node/text/Gemini"
-    API_NODE = True
-
-    def create_video_parts(self, video_input: IO.VIDEO, **kwargs) -> list[GeminiPart]:
-        """
-        Convert video input to Gemini API compatible parts.
-
-        Args:
-            video_input: Video tensor from ComfyUI.
-            **kwargs: Additional arguments to pass to the conversion function.
-
-        Returns:
-            List of GeminiPart objects containing the encoded video.
-        """
-
-        base_64_string = video_to_base64_string(
-            video_input,
-            container_format=VideoContainer.MP4,
-            codec=VideoCodec.H264
+            ],
+            outputs=[
+                IO.String.Output(),
+            ],
+            hidden=[
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
+            ],
+            is_api_node=True,
         )
+
+    @classmethod
+    def create_video_parts(cls, video_input: Input.Video) -> list[GeminiPart]:
+        """Convert video input to Gemini API compatible parts."""
+
+        base_64_string = video_to_base64_string(video_input, container_format=VideoContainer.MP4, codec=VideoCodec.H264)
         return [
             GeminiPart(
                 inlineData=GeminiInlineData(
@@ -326,7 +232,8 @@ class GeminiNode(ComfyNodeABC):
             )
         ]
 
-    def create_audio_parts(self, audio_input: IO.AUDIO) -> list[GeminiPart]:
+    @classmethod
+    def create_audio_parts(cls, audio_input: Input.Audio) -> list[GeminiPart]:
         """
         Convert audio input to Gemini API compatible parts.
 
@@ -339,10 +246,10 @@ class GeminiNode(ComfyNodeABC):
         audio_parts: list[GeminiPart] = []
         for batch_index in range(audio_input["waveform"].shape[0]):
             # Recreate an IO.AUDIO object for the given batch dimension index
-            audio_at_index = {
-                "waveform": audio_input["waveform"][batch_index].unsqueeze(0),
-                "sample_rate": audio_input["sample_rate"],
-            }
+            audio_at_index = Input.Audio(
+                waveform=audio_input["waveform"][batch_index].unsqueeze(0),
+                sample_rate=audio_input["sample_rate"],
+            )
             # Convert to MP3 format for compatibility with Gemini API
             audio_bytes = audio_to_base64_string(
                 audio_at_index,
@@ -359,38 +266,38 @@ class GeminiNode(ComfyNodeABC):
             )
         return audio_parts
 
-    async def api_call(
-        self,
+    @classmethod
+    async def execute(
+        cls,
         prompt: str,
-        model: GeminiModel,
-        images: Optional[IO.IMAGE] = None,
-        audio: Optional[IO.AUDIO] = None,
-        video: Optional[IO.VIDEO] = None,
+        model: str,
+        seed: int,
+        images: Optional[torch.Tensor] = None,
+        audio: Optional[Input.Audio] = None,
+        video: Optional[Input.Video] = None,
         files: Optional[list[GeminiPart]] = None,
-        unique_id: Optional[str] = None,
-        **kwargs,
-    ) -> tuple[str]:
-        # Validate inputs
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=False)
 
         # Create parts list with text prompt as the first part
-        parts: list[GeminiPart] = [create_text_part(prompt)]
+        parts: list[GeminiPart] = [GeminiPart(text=prompt)]
 
         # Add other modal parts
         if images is not None:
             image_parts = create_image_parts(images)
             parts.extend(image_parts)
         if audio is not None:
-            parts.extend(self.create_audio_parts(audio))
+            parts.extend(cls.create_audio_parts(audio))
         if video is not None:
-            parts.extend(self.create_video_parts(video))
+            parts.extend(cls.create_video_parts(video))
         if files is not None:
             parts.extend(files)
 
         # Create response
-        response = await SynchronousOperation(
-            endpoint=get_gemini_endpoint(model),
-            request=GeminiGenerateContentRequest(
+        response = await sync_op(
+            cls,
+            endpoint=ApiEndpoint(path=f"{GEMINI_BASE_ENDPOINT}/{model}", method="POST"),
+            data=GeminiGenerateContentRequest(
                 contents=[
                     GeminiContent(
                         role="user",
@@ -398,15 +305,15 @@ class GeminiNode(ComfyNodeABC):
                     )
                 ]
             ),
-            auth_kwargs=kwargs,
-        ).execute()
+            response_model=GeminiGenerateContentResponse,
+        )
 
         # Get result output
         output_text = get_text_from_response(response)
-        if unique_id and output_text:
+        if output_text:
             # Not a true chat history like the OpenAI Chat node. It is emulated so the frontend can show a copy button.
             render_spec = {
-                "node_id": unique_id,
+                "node_id": cls.hidden.unique_id,
                 "component": "ChatHistoryWidget",
                 "props": {
                     "history": json.dumps(
@@ -426,10 +333,10 @@ class GeminiNode(ComfyNodeABC):
                 render_spec,
             )
 
-        return (output_text or "Empty response from Gemini model...",)
+        return IO.NodeOutput(output_text or "Empty response from Gemini model...")
 
 
-class GeminiInputFiles(ComfyNodeABC):
+class GeminiInputFiles(IO.ComfyNode):
     """
     Loads and formats input files for use with the Gemini API.
 
@@ -440,7 +347,7 @@ class GeminiInputFiles(ComfyNodeABC):
     """
 
     @classmethod
-    def INPUT_TYPES(cls) -> InputTypeDict:
+    def define_schema(cls):
         """
         For details about the supported file input types, see:
         https://cloud.google.com/vertex-ai/generative-ai/docs/model-reference/inference
@@ -455,39 +362,37 @@ class GeminiInputFiles(ComfyNodeABC):
         ]
         input_files = sorted(input_files, key=lambda x: x.name)
         input_files = [f.name for f in input_files]
-        return {
-            "required": {
-                "file": (
-                    IO.COMBO,
-                    {
-                        "tooltip": "Input files to include as context for the model. Only accepts text (.txt) and PDF (.pdf) files for now.",
-                        "options": input_files,
-                        "default": input_files[0] if input_files else None,
-                    },
+        return IO.Schema(
+            node_id="GeminiInputFiles",
+            display_name="Gemini Input Files",
+            category="api node/text/Gemini",
+            description="Loads and prepares input files to include as inputs for Gemini LLM nodes. "
+            "The files will be read by the Gemini model when generating a response. "
+            "The contents of the text file count toward the token limit. "
+            "🛈 TIP: Can be chained together with other Gemini Input File nodes.",
+            inputs=[
+                IO.Combo.Input(
+                    "file",
+                    options=input_files,
+                    default=input_files[0] if input_files else None,
+                    tooltip="Input files to include as context for the model. "
+                    "Only accepts text (.txt) and PDF (.pdf) files for now.",
                 ),
-            },
-            "optional": {
-                "GEMINI_INPUT_FILES": (
+                IO.Custom("GEMINI_INPUT_FILES").Input(
                     "GEMINI_INPUT_FILES",
-                    {
-                        "tooltip": "An optional additional file(s) to batch together with the file loaded from this node. Allows chaining of input files so that a single message can include multiple input files.",
-                        "default": None,
-                    },
+                    optional=True,
+                    tooltip="An optional additional file(s) to batch together with the file loaded from this node. "
+                    "Allows chaining of input files so that a single message can include multiple input files.",
                 ),
-            },
-        }
-
-    DESCRIPTION = "Loads and prepares input files to include as inputs for Gemini LLM nodes. The files will be read by the Gemini model when generating a response. The contents of the text file count toward the token limit. 🛈 TIP: Can be chained together with other Gemini Input File nodes."
-    RETURN_TYPES = ("GEMINI_INPUT_FILES",)
-    FUNCTION = "prepare_files"
-    CATEGORY = "api node/text/Gemini"
-
-    def create_file_part(self, file_path: str) -> GeminiPart:
-        mime_type = (
-            GeminiMimeType.application_pdf
-            if file_path.endswith(".pdf")
-            else GeminiMimeType.text_plain
+            ],
+            outputs=[
+                IO.Custom("GEMINI_INPUT_FILES").Output(),
+            ],
         )
+
+    @classmethod
+    def create_file_part(cls, file_path: str) -> GeminiPart:
+        mime_type = GeminiMimeType.application_pdf if file_path.endswith(".pdf") else GeminiMimeType.text_plain
         # Use base64 string directly, not the data URI
         with open(file_path, "rb") as f:
             file_content = f.read()
@@ -500,143 +405,127 @@ class GeminiInputFiles(ComfyNodeABC):
             )
         )
 
-    def prepare_files(
-        self, file: str, GEMINI_INPUT_FILES: list[GeminiPart] = []
-    ) -> tuple[list[GeminiPart]]:
-        """
-        Loads and formats input files for Gemini API.
-        """
-        file_path = folder_paths.get_annotated_filepath(file)
-        input_file_content = self.create_file_part(file_path)
-        files = [input_file_content] + GEMINI_INPUT_FILES
-        return (files,)
-
-
-class GeminiImage(ComfyNodeABC):
-    """
-    Node to generate text and image responses from a Gemini model.
-
-    This node allows users to interact with Google's Gemini AI models, providing
-    multimodal inputs (text, images, files) to generate coherent
-    text and image responses. The node works with the latest Gemini models, handling the
-    API communication and response parsing.
-    """
     @classmethod
-    def INPUT_TYPES(cls) -> InputTypeDict:
-        return {
-            "required": {
-                "prompt": (
-                    IO.STRING,
-                    {
-                        "multiline": True,
-                        "default": "",
-                        "tooltip": "Text prompt for generation",
-                    },
-                ),
-                "model": (
-                    IO.COMBO,
-                    {
-                        "tooltip": "The Gemini model to use for generating responses.",
-                        "options": [model.value for model in GeminiImageModel],
-                        "default": GeminiImageModel.gemini_2_5_flash_image_preview.value,
-                    },
-                ),
-                "seed": (
-                    IO.INT,
-                    {
-                        "default": 42,
-                        "min": 0,
-                        "max": 0xFFFFFFFFFFFFFFFF,
-                        "control_after_generate": True,
-                        "tooltip": "When seed is fixed to a specific value, the model makes a best effort to provide the same response for repeated requests. Deterministic output isn't guaranteed. Also, changing the model or parameter settings, such as the temperature, can cause variations in the response even when you use the same seed value. By default, a random seed value is used.",
-                    },
-                ),
-            },
-            "optional": {
-                "images": (
-                    IO.IMAGE,
-                    {
-                        "default": None,
-                        "tooltip": "Optional image(s) to use as context for the model. To include multiple images, you can use the Batch Images node.",
-                    },
-                ),
-                "files": (
-                    "GEMINI_INPUT_FILES",
-                    {
-                        "default": None,
-                        "tooltip": "Optional file(s) to use as context for the model. Accepts inputs from the Gemini Generate Content Input Files node.",
-                    },
-                ),
-                # TODO: later we can add this parameter later
-                # "n": (
-                #     IO.INT,
-                #     {
-                #         "default": 1,
-                #         "min": 1,
-                #         "max": 8,
-                #         "step": 1,
-                #         "display": "number",
-                #         "tooltip": "How many images to generate",
-                #     },
-                # ),
-            },
-            "hidden": {
-                "auth_token": "AUTH_TOKEN_COMFY_ORG",
-                "comfy_api_key": "API_KEY_COMFY_ORG",
-                "unique_id": "UNIQUE_ID",
-            },
-        }
+    def execute(cls, file: str, GEMINI_INPUT_FILES: Optional[list[GeminiPart]] = None) -> IO.NodeOutput:
+        """Loads and formats input files for Gemini API."""
+        if GEMINI_INPUT_FILES is None:
+            GEMINI_INPUT_FILES = []
+        file_path = folder_paths.get_annotated_filepath(file)
+        input_file_content = cls.create_file_part(file_path)
+        return IO.NodeOutput([input_file_content] + GEMINI_INPUT_FILES)
 
-    RETURN_TYPES = (IO.IMAGE, IO.STRING)
-    FUNCTION = "api_call"
-    CATEGORY = "api node/image/Gemini"
-    DESCRIPTION = "Edit images synchronously via Google API."
-    API_NODE = True
 
-    async def api_call(
-        self,
+class GeminiImage(IO.ComfyNode):
+
+    @classmethod
+    def define_schema(cls):
+        return IO.Schema(
+            node_id="GeminiImageNode",
+            display_name="Google Gemini Image",
+            category="api node/image/Gemini",
+            description="Edit images synchronously via Google API.",
+            inputs=[
+                IO.String.Input(
+                    "prompt",
+                    multiline=True,
+                    tooltip="Text prompt for generation",
+                    default="",
+                ),
+                IO.Combo.Input(
+                    "model",
+                    options=GeminiImageModel,
+                    default=GeminiImageModel.gemini_2_5_flash_image,
+                    tooltip="The Gemini model to use for generating responses.",
+                ),
+                IO.Int.Input(
+                    "seed",
+                    default=42,
+                    min=0,
+                    max=0xFFFFFFFFFFFFFFFF,
+                    control_after_generate=True,
+                    tooltip="When seed is fixed to a specific value, the model makes a best effort to provide "
+                    "the same response for repeated requests. Deterministic output isn't guaranteed. "
+                    "Also, changing the model or parameter settings, such as the temperature, "
+                    "can cause variations in the response even when you use the same seed value. "
+                    "By default, a random seed value is used.",
+                ),
+                IO.Image.Input(
+                    "images",
+                    optional=True,
+                    tooltip="Optional image(s) to use as context for the model. "
+                    "To include multiple images, you can use the Batch Images node.",
+                ),
+                IO.Custom("GEMINI_INPUT_FILES").Input(
+                    "files",
+                    optional=True,
+                    tooltip="Optional file(s) to use as context for the model. "
+                    "Accepts inputs from the Gemini Generate Content Input Files node.",
+                ),
+                IO.Combo.Input(
+                    "aspect_ratio",
+                    options=["auto", "1:1", "2:3", "3:2", "3:4", "4:3", "4:5", "5:4", "9:16", "16:9", "21:9"],
+                    default="auto",
+                    tooltip="Defaults to matching the output image size to that of your input image, "
+                    "or otherwise generates 1:1 squares.",
+                    optional=True,
+                ),
+            ],
+            outputs=[
+                IO.Image.Output(),
+                IO.String.Output(),
+            ],
+            hidden=[
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
+            ],
+            is_api_node=True,
+        )
+
+    @classmethod
+    async def execute(
+        cls,
         prompt: str,
-        model: GeminiImageModel,
-        images: Optional[IO.IMAGE] = None,
+        model: str,
+        seed: int,
+        images: Optional[torch.Tensor] = None,
         files: Optional[list[GeminiPart]] = None,
-        n=1,
-        unique_id: Optional[str] = None,
-        **kwargs,
-    ):
-        # Validate inputs
+        aspect_ratio: str = "auto",
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=True, min_length=1)
-        # Create parts list with text prompt as the first part
-        parts: list[GeminiPart] = [create_text_part(prompt)]
+        parts: list[GeminiPart] = [GeminiPart(text=prompt)]
+
+        if not aspect_ratio:
+            aspect_ratio = "auto"  # for backward compatability with old workflows; to-do remove this in December
+        image_config = GeminiImageConfig(aspectRatio=aspect_ratio)
 
-        # Add other modal parts
         if images is not None:
             image_parts = create_image_parts(images)
             parts.extend(image_parts)
         if files is not None:
             parts.extend(files)
 
-        response = await SynchronousOperation(
-            endpoint=get_gemini_image_endpoint(model),
-            request=GeminiImageGenerateContentRequest(
+        response = await sync_op(
+            cls,
+            endpoint=ApiEndpoint(path=f"{GEMINI_BASE_ENDPOINT}/{model}", method="POST"),
+            data=GeminiImageGenerateContentRequest(
                 contents=[
-                    GeminiContent(
-                        role="user",
-                        parts=parts,
-                    ),
+                    GeminiContent(role="user", parts=parts),
                 ],
                 generationConfig=GeminiImageGenerationConfig(
-                    responseModalities=["TEXT","IMAGE"]
-                )
+                    responseModalities=["TEXT", "IMAGE"],
+                    imageConfig=None if aspect_ratio == "auto" else image_config,
+                ),
             ),
-            auth_kwargs=kwargs,
-        ).execute()
+            response_model=GeminiGenerateContentResponse,
+        )
 
         output_image = get_image_from_response(response)
         output_text = get_text_from_response(response)
-        if unique_id and output_text:
+        if output_text:
             # Not a true chat history like the OpenAI Chat node. It is emulated so the frontend can show a copy button.
             render_spec = {
-                "node_id": unique_id,
+                "node_id": cls.hidden.unique_id,
                 "component": "ChatHistoryWidget",
                 "props": {
                     "history": json.dumps(
@@ -657,17 +546,18 @@ class GeminiImage(ComfyNodeABC):
             )
 
         output_text = output_text or "Empty response from Gemini model..."
-        return (output_image, output_text,)
+        return IO.NodeOutput(output_image, output_text)
 
 
-NODE_CLASS_MAPPINGS = {
-    "GeminiNode": GeminiNode,
-    "GeminiImageNode": GeminiImage,
-    "GeminiInputFiles": GeminiInputFiles,
-}
+class GeminiExtension(ComfyExtension):
+    @override
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
+        return [
+            GeminiNode,
+            GeminiImage,
+            GeminiInputFiles,
+        ]
 
-NODE_DISPLAY_NAME_MAPPINGS = {
-    "GeminiNode": "Google Gemini",
-    "GeminiImageNode": "Google Gemini Image",
-    "GeminiInputFiles": "Gemini Input Files",
-}
+
+async def comfy_entrypoint() -> GeminiExtension:
+    return GeminiExtension()

comfy_api_nodes/nodes_ideogram.py

@@ -1,6 +1,6 @@
 from io import BytesIO
 from typing_extensions import override
-from comfy_api.latest import ComfyExtension, io as comfy_io
+from comfy_api.latest import IO, ComfyExtension
 from PIL import Image
 import numpy as np
 import torch
@@ -11,19 +11,13 @@ from comfy_api_nodes.apis import (
     IdeogramV3Request,
     IdeogramV3EditRequest,
 )
-
-from comfy_api_nodes.apis.client import (
+from comfy_api_nodes.util import (
     ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-)
-
-from comfy_api_nodes.apinode_utils import (
-    download_url_to_bytesio,
     bytesio_to_image_tensor,
+    download_url_as_bytesio,
     resize_mask_to_image,
+    sync_op,
 )
-from server import PromptServer
 
 V1_V1_RES_MAP = {
   "Auto":"AUTO",
@@ -220,7 +214,7 @@ async def download_and_process_images(image_urls):
 
     for image_url in image_urls:
         # Using functions from apinode_utils.py to handle downloading and processing
-        image_bytesio = await download_url_to_bytesio(image_url)  # Download image content to BytesIO
+        image_bytesio = await download_url_as_bytesio(image_url)  # Download image content to BytesIO
         img_tensor = bytesio_to_image_tensor(image_bytesio, mode="RGB")  # Convert to torch.Tensor with RGB mode
         image_tensors.append(img_tensor)
 
@@ -233,89 +227,76 @@ async def download_and_process_images(image_urls):
     return stacked_tensors
 
 
-def display_image_urls_on_node(image_urls, node_id):
-    if node_id and image_urls:
-        if len(image_urls) == 1:
-            PromptServer.instance.send_progress_text(
-                f"Generated Image URL:\n{image_urls[0]}", node_id
-            )
-        else:
-            urls_text = "Generated Image URLs:\n" + "\n".join(
-                f"{i+1}. {url}" for i, url in enumerate(image_urls)
-            )
-            PromptServer.instance.send_progress_text(urls_text, node_id)
-
-
-class IdeogramV1(comfy_io.ComfyNode):
+class IdeogramV1(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="IdeogramV1",
             display_name="Ideogram V1",
             category="api node/image/Ideogram",
             description="Generates images using the Ideogram V1 model.",
             is_api_node=True,
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the image generation",
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "turbo",
                     default=False,
                     tooltip="Whether to use turbo mode (faster generation, potentially lower quality)",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=list(V1_V2_RATIO_MAP.keys()),
                     default="1:1",
                     tooltip="The aspect ratio for image generation.",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "magic_prompt_option",
                     options=["AUTO", "ON", "OFF"],
                     default="AUTO",
                     tooltip="Determine if MagicPrompt should be used in generation",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
                     control_after_generate=True,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     optional=True,
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="",
                     tooltip="Description of what to exclude from the image",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "num_images",
                     default=1,
                     min=1,
                     max=8,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     optional=True,
                 ),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
         )
 
@@ -334,77 +315,63 @@ class IdeogramV1(comfy_io.ComfyNode):
         aspect_ratio = V1_V2_RATIO_MAP.get(aspect_ratio, None)
         model = "V_1_TURBO" if turbo else "V_1"
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/ideogram/generate",
-                method=HttpMethod.POST,
-                request_model=IdeogramGenerateRequest,
-                response_model=IdeogramGenerateResponse,
-            ),
-            request=IdeogramGenerateRequest(
+        response = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/ideogram/generate", method="POST"),
+            response_model=IdeogramGenerateResponse,
+            data=IdeogramGenerateRequest(
                 image_request=ImageRequest(
                     prompt=prompt,
                     model=model,
                     num_images=num_images,
                     seed=seed,
                     aspect_ratio=aspect_ratio if aspect_ratio != "ASPECT_1_1" else None,
-                    magic_prompt_option=(
-                        magic_prompt_option if magic_prompt_option != "AUTO" else None
-                    ),
+                    magic_prompt_option=(magic_prompt_option if magic_prompt_option != "AUTO" else None),
                     negative_prompt=negative_prompt if negative_prompt else None,
                 )
             ),
-            auth_kwargs=auth,
+            max_retries=1,
         )
 
-        response = await operation.execute()
-
         if not response.data or len(response.data) == 0:
             raise Exception("No images were generated in the response")
 
         image_urls = [image_data.url for image_data in response.data if image_data.url]
-
         if not image_urls:
             raise Exception("No image URLs were generated in the response")
-
-        display_image_urls_on_node(image_urls, cls.hidden.unique_id)
-        return comfy_io.NodeOutput(await download_and_process_images(image_urls))
+        return IO.NodeOutput(await download_and_process_images(image_urls))
 
 
-class IdeogramV2(comfy_io.ComfyNode):
+class IdeogramV2(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="IdeogramV2",
             display_name="Ideogram V2",
             category="api node/image/Ideogram",
             description="Generates images using the Ideogram V2 model.",
             is_api_node=True,
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the image generation",
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "turbo",
                     default=False,
                     tooltip="Whether to use turbo mode (faster generation, potentially lower quality)",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=list(V1_V2_RATIO_MAP.keys()),
                     default="1:1",
                     tooltip="The aspect ratio for image generation. Ignored if resolution is not set to AUTO.",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=list(V1_V1_RES_MAP.keys()),
                     default="Auto",
@@ -412,44 +379,44 @@ class IdeogramV2(comfy_io.ComfyNode):
                             "If not set to AUTO, this overrides the aspect_ratio setting.",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "magic_prompt_option",
                     options=["AUTO", "ON", "OFF"],
                     default="AUTO",
                     tooltip="Determine if MagicPrompt should be used in generation",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
                     control_after_generate=True,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "style_type",
                     options=["AUTO", "GENERAL", "REALISTIC", "DESIGN", "RENDER_3D", "ANIME"],
                     default="NONE",
                     tooltip="Style type for generation (V2 only)",
                     optional=True,
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="",
                     tooltip="Description of what to exclude from the image",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "num_images",
                     default=1,
                     min=1,
                     max=8,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     optional=True,
                 ),
                 #"color_palette": (
@@ -462,12 +429,12 @@ class IdeogramV2(comfy_io.ComfyNode):
                 #),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
         )
 
@@ -500,18 +467,11 @@ class IdeogramV2(comfy_io.ComfyNode):
         else:
             final_aspect_ratio = aspect_ratio if aspect_ratio != "ASPECT_1_1" else None
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/ideogram/generate",
-                method=HttpMethod.POST,
-                request_model=IdeogramGenerateRequest,
-                response_model=IdeogramGenerateResponse,
-            ),
-            request=IdeogramGenerateRequest(
+        response = await sync_op(
+            cls,
+            endpoint=ApiEndpoint(path="/proxy/ideogram/generate", method="POST"),
+            response_model=IdeogramGenerateResponse,
+            data=IdeogramGenerateRequest(
                 image_request=ImageRequest(
                     prompt=prompt,
                     model=model,
@@ -519,36 +479,28 @@ class IdeogramV2(comfy_io.ComfyNode):
                     seed=seed,
                     aspect_ratio=final_aspect_ratio,
                     resolution=final_resolution,
-                    magic_prompt_option=(
-                        magic_prompt_option if magic_prompt_option != "AUTO" else None
-                    ),
+                    magic_prompt_option=(magic_prompt_option if magic_prompt_option != "AUTO" else None),
                     style_type=style_type if style_type != "NONE" else None,
                     negative_prompt=negative_prompt if negative_prompt else None,
                     color_palette=color_palette if color_palette else None,
                 )
             ),
-            auth_kwargs=auth,
+            max_retries=1,
         )
-
-        response = await operation.execute()
-
         if not response.data or len(response.data) == 0:
             raise Exception("No images were generated in the response")
 
         image_urls = [image_data.url for image_data in response.data if image_data.url]
-
         if not image_urls:
             raise Exception("No image URLs were generated in the response")
-
-        display_image_urls_on_node(image_urls, cls.hidden.unique_id)
-        return comfy_io.NodeOutput(await download_and_process_images(image_urls))
+        return IO.NodeOutput(await download_and_process_images(image_urls))
 
 
-class IdeogramV3(comfy_io.ComfyNode):
+class IdeogramV3(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="IdeogramV3",
             display_name="Ideogram V3",
             category="api node/image/Ideogram",
@@ -556,30 +508,30 @@ class IdeogramV3(comfy_io.ComfyNode):
                         "Supports both regular image generation from text prompts and image editing with mask.",
             is_api_node=True,
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the image generation or editing",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     tooltip="Optional reference image for image editing.",
                     optional=True,
                 ),
-                comfy_io.Mask.Input(
+                IO.Mask.Input(
                     "mask",
                     tooltip="Optional mask for inpainting (white areas will be replaced)",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=list(V3_RATIO_MAP.keys()),
                     default="1:1",
                     tooltip="The aspect ratio for image generation. Ignored if resolution is not set to Auto.",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=V3_RESOLUTIONS,
                     default="Auto",
@@ -587,57 +539,57 @@ class IdeogramV3(comfy_io.ComfyNode):
                             "If not set to Auto, this overrides the aspect_ratio setting.",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "magic_prompt_option",
                     options=["AUTO", "ON", "OFF"],
                     default="AUTO",
                     tooltip="Determine if MagicPrompt should be used in generation",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
                     control_after_generate=True,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "num_images",
                     default=1,
                     min=1,
                     max=8,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "rendering_speed",
                     options=["DEFAULT", "TURBO", "QUALITY"],
                     default="DEFAULT",
                     tooltip="Controls the trade-off between generation speed and quality",
                     optional=True,
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "character_image",
                     tooltip="Image to use as character reference.",
                     optional=True,
                 ),
-                comfy_io.Mask.Input(
+                IO.Mask.Input(
                     "character_mask",
                     tooltip="Optional mask for character reference image.",
                     optional=True,
                 ),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
         )
 
@@ -656,10 +608,6 @@ class IdeogramV3(comfy_io.ComfyNode):
         character_image=None,
         character_mask=None,
     ):
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
         if rendering_speed == "BALANCED":  # for backward compatibility
             rendering_speed = "DEFAULT"
 
@@ -694,9 +642,6 @@ class IdeogramV3(comfy_io.ComfyNode):
 
         # Check if both image and mask are provided for editing mode
         if image is not None and mask is not None:
-            # Edit mode
-            path = "/proxy/ideogram/ideogram-v3/edit"
-
             # Process image and mask
             input_tensor = image.squeeze().cpu()
             # Resize mask to match image dimension
@@ -749,27 +694,20 @@ class IdeogramV3(comfy_io.ComfyNode):
             if character_mask_binary:
                 files["character_mask_binary"] = character_mask_binary
 
-            # Execute the operation for edit mode
-            operation = SynchronousOperation(
-                endpoint=ApiEndpoint(
-                    path=path,
-                    method=HttpMethod.POST,
-                    request_model=IdeogramV3EditRequest,
-                    response_model=IdeogramGenerateResponse,
-                ),
-                request=edit_request,
+            response = await sync_op(
+                cls,
+                ApiEndpoint(path="/proxy/ideogram/ideogram-v3/edit", method="POST"),
+                response_model=IdeogramGenerateResponse,
+                data=edit_request,
                 files=files,
                 content_type="multipart/form-data",
-                auth_kwargs=auth,
+                max_retries=1,
             )
 
         elif image is not None or mask is not None:
             # If only one of image or mask is provided, raise an error
             raise Exception("Ideogram V3 image editing requires both an image AND a mask")
         else:
-            # Generation mode
-            path = "/proxy/ideogram/ideogram-v3/generate"
-
             # Create generation request
             gen_request = IdeogramV3Request(
                 prompt=prompt,
@@ -800,43 +738,34 @@ class IdeogramV3(comfy_io.ComfyNode):
             if files:
                 gen_request.style_type = "AUTO"
 
-            # Execute the operation for generation mode
-            operation = SynchronousOperation(
-                endpoint=ApiEndpoint(
-                    path=path,
-                    method=HttpMethod.POST,
-                    request_model=IdeogramV3Request,
-                    response_model=IdeogramGenerateResponse,
-                ),
-                request=gen_request,
+            response = await sync_op(
+                cls,
+                endpoint=ApiEndpoint(path="/proxy/ideogram/ideogram-v3/generate", method="POST"),
+                response_model=IdeogramGenerateResponse,
+                data=gen_request,
                 files=files if files else None,
                 content_type="multipart/form-data",
-                auth_kwargs=auth,
+                max_retries=1,
             )
 
-        # Execute the operation and process response
-        response = await operation.execute()
-
         if not response.data or len(response.data) == 0:
             raise Exception("No images were generated in the response")
 
         image_urls = [image_data.url for image_data in response.data if image_data.url]
-
         if not image_urls:
             raise Exception("No image URLs were generated in the response")
-
-        display_image_urls_on_node(image_urls, cls.hidden.unique_id)
-        return comfy_io.NodeOutput(await download_and_process_images(image_urls))
+        return IO.NodeOutput(await download_and_process_images(image_urls))
 
 
 class IdeogramExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             IdeogramV1,
             IdeogramV2,
             IdeogramV3,
         ]
 
+
 async def comfy_entrypoint() -> IdeogramExtension:
     return IdeogramExtension()

comfy_api_nodes/nodes_ltxv.py

@@ -0,0 +1,199 @@
+from io import BytesIO
+from typing import Optional
+
+import torch
+from pydantic import BaseModel, Field
+from typing_extensions import override
+
+from comfy_api.input_impl import VideoFromFile
+from comfy_api.latest import IO, ComfyExtension
+from comfy_api_nodes.util import (
+    ApiEndpoint,
+    get_number_of_images,
+    sync_op_raw,
+    upload_images_to_comfyapi,
+    validate_string,
+)
+
+MODELS_MAP = {
+    "LTX-2 (Pro)": "ltx-2-pro",
+    "LTX-2 (Fast)": "ltx-2-fast",
+}
+
+
+class ExecuteTaskRequest(BaseModel):
+    prompt: str = Field(...)
+    model: str = Field(...)
+    duration: int = Field(...)
+    resolution: str = Field(...)
+    fps: Optional[int] = Field(25)
+    generate_audio: Optional[bool] = Field(True)
+    image_uri: Optional[str] = Field(None)
+
+
+class TextToVideoNode(IO.ComfyNode):
+    @classmethod
+    def define_schema(cls):
+        return IO.Schema(
+            node_id="LtxvApiTextToVideo",
+            display_name="LTXV Text To Video",
+            category="api node/video/LTXV",
+            description="Professional-quality videos with customizable duration and resolution.",
+            inputs=[
+                IO.Combo.Input("model", options=list(MODELS_MAP.keys())),
+                IO.String.Input(
+                    "prompt",
+                    multiline=True,
+                    default="",
+                ),
+                IO.Combo.Input("duration", options=[6, 8, 10, 12, 14, 16, 18, 20], default=8),
+                IO.Combo.Input(
+                    "resolution",
+                    options=[
+                        "1920x1080",
+                        "2560x1440",
+                        "3840x2160",
+                    ],
+                ),
+                IO.Combo.Input("fps", options=[25, 50], default=25),
+                IO.Boolean.Input(
+                    "generate_audio",
+                    default=False,
+                    optional=True,
+                    tooltip="When true, the generated video will include AI-generated audio matching the scene.",
+                ),
+            ],
+            outputs=[
+                IO.Video.Output(),
+            ],
+            hidden=[
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
+            ],
+            is_api_node=True,
+        )
+
+    @classmethod
+    async def execute(
+        cls,
+        model: str,
+        prompt: str,
+        duration: int,
+        resolution: str,
+        fps: int = 25,
+        generate_audio: bool = False,
+    ) -> IO.NodeOutput:
+        validate_string(prompt, min_length=1, max_length=10000)
+        if duration > 10 and (model != "LTX-2 (Fast)" or resolution != "1920x1080" or fps != 25):
+            raise ValueError(
+                "Durations over 10s are only available for the Fast model at 1920x1080 resolution and 25 FPS."
+            )
+        response = await sync_op_raw(
+            cls,
+            ApiEndpoint("/proxy/ltx/v1/text-to-video", "POST"),
+            data=ExecuteTaskRequest(
+                prompt=prompt,
+                model=MODELS_MAP[model],
+                duration=duration,
+                resolution=resolution,
+                fps=fps,
+                generate_audio=generate_audio,
+            ),
+            as_binary=True,
+            max_retries=1,
+        )
+        return IO.NodeOutput(VideoFromFile(BytesIO(response)))
+
+
+class ImageToVideoNode(IO.ComfyNode):
+    @classmethod
+    def define_schema(cls):
+        return IO.Schema(
+            node_id="LtxvApiImageToVideo",
+            display_name="LTXV Image To Video",
+            category="api node/video/LTXV",
+            description="Professional-quality videos with customizable duration and resolution based on start image.",
+            inputs=[
+                IO.Image.Input("image", tooltip="First frame to be used for the video."),
+                IO.Combo.Input("model", options=list(MODELS_MAP.keys())),
+                IO.String.Input(
+                    "prompt",
+                    multiline=True,
+                    default="",
+                ),
+                IO.Combo.Input("duration", options=[6, 8, 10, 12, 14, 16, 18, 20], default=8),
+                IO.Combo.Input(
+                    "resolution",
+                    options=[
+                        "1920x1080",
+                        "2560x1440",
+                        "3840x2160",
+                    ],
+                ),
+                IO.Combo.Input("fps", options=[25, 50], default=25),
+                IO.Boolean.Input(
+                    "generate_audio",
+                    default=False,
+                    optional=True,
+                    tooltip="When true, the generated video will include AI-generated audio matching the scene.",
+                ),
+            ],
+            outputs=[
+                IO.Video.Output(),
+            ],
+            hidden=[
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
+            ],
+            is_api_node=True,
+        )
+
+    @classmethod
+    async def execute(
+        cls,
+        image: torch.Tensor,
+        model: str,
+        prompt: str,
+        duration: int,
+        resolution: str,
+        fps: int = 25,
+        generate_audio: bool = False,
+    ) -> IO.NodeOutput:
+        validate_string(prompt, min_length=1, max_length=10000)
+        if duration > 10 and (model != "LTX-2 (Fast)" or resolution != "1920x1080" or fps != 25):
+            raise ValueError(
+                "Durations over 10s are only available for the Fast model at 1920x1080 resolution and 25 FPS."
+            )
+        if get_number_of_images(image) != 1:
+            raise ValueError("Currently only one input image is supported.")
+        response = await sync_op_raw(
+            cls,
+            ApiEndpoint("/proxy/ltx/v1/image-to-video", "POST"),
+            data=ExecuteTaskRequest(
+                image_uri=(await upload_images_to_comfyapi(cls, image, max_images=1, mime_type="image/png"))[0],
+                prompt=prompt,
+                model=MODELS_MAP[model],
+                duration=duration,
+                resolution=resolution,
+                fps=fps,
+                generate_audio=generate_audio,
+            ),
+            as_binary=True,
+            max_retries=1,
+        )
+        return IO.NodeOutput(VideoFromFile(BytesIO(response)))
+
+
+class LtxvApiExtension(ComfyExtension):
+    @override
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
+        return [
+            TextToVideoNode,
+            ImageToVideoNode,
+        ]
+
+
+async def comfy_entrypoint() -> LtxvApiExtension:
+    return LtxvApiExtension()

comfy_api_nodes/nodes_luma.py

@@ -1,75 +1,57 @@
-from __future__ import annotations
-from inspect import cleandoc
 from typing import Optional
+
+import torch
 from typing_extensions import override
-from comfy_api.latest import ComfyExtension, io as comfy_io
-from comfy_api.input_impl.video_types import VideoFromFile
+
+from comfy_api.latest import IO, ComfyExtension
 from comfy_api_nodes.apis.luma_api import (
-    LumaImageModel,
-    LumaVideoModel,
-    LumaVideoOutputResolution,
-    LumaVideoModelOutputDuration,
     LumaAspectRatio,
-    LumaState,
-    LumaImageGenerationRequest,
-    LumaGenerationRequest,
-    LumaGeneration,
     LumaCharacterRef,
-    LumaModifyImageRef,
+    LumaConceptChain,
+    LumaGeneration,
+    LumaGenerationRequest,
+    LumaImageGenerationRequest,
     LumaImageIdentity,
+    LumaImageModel,
+    LumaImageReference,
+    LumaIO,
+    LumaKeyframes,
+    LumaModifyImageRef,
     LumaReference,
     LumaReferenceChain,
-    LumaImageReference,
-    LumaKeyframes,
-    LumaConceptChain,
-    LumaIO,
+    LumaVideoModel,
+    LumaVideoModelOutputDuration,
+    LumaVideoOutputResolution,
     get_luma_concepts,
 )
-from comfy_api_nodes.apis.client import (
+from comfy_api_nodes.util import (
     ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-    EmptyRequest,
-)
-from comfy_api_nodes.apinode_utils import (
+    download_url_to_image_tensor,
+    download_url_to_video_output,
+    poll_op,
+    sync_op,
     upload_images_to_comfyapi,
-    process_image_response,
     validate_string,
 )
-from server import PromptServer
-
-import aiohttp
-import torch
-from io import BytesIO
 
 LUMA_T2V_AVERAGE_DURATION = 105
 LUMA_I2V_AVERAGE_DURATION = 100
 
-def image_result_url_extractor(response: LumaGeneration):
-    return response.assets.image if hasattr(response, "assets") and hasattr(response.assets, "image") else None
-
-def video_result_url_extractor(response: LumaGeneration):
-    return response.assets.video if hasattr(response, "assets") and hasattr(response.assets, "video") else None
-
-class LumaReferenceNode(comfy_io.ComfyNode):
-    """
-    Holds an image and weight for use with Luma Generate Image node.
-    """
 
+class LumaReferenceNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="LumaReferenceNode",
             display_name="Luma Reference",
             category="api node/image/Luma",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Holds an image and weight for use with Luma Generate Image node.",
             inputs=[
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     tooltip="Image to use as reference.",
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "weight",
                     default=1.0,
                     min=0.0,
@@ -77,72 +59,56 @@ class LumaReferenceNode(comfy_io.ComfyNode):
                     step=0.01,
                     tooltip="Weight of image reference.",
                 ),
-                comfy_io.Custom(LumaIO.LUMA_REF).Input(
+                IO.Custom(LumaIO.LUMA_REF).Input(
                     "luma_ref",
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Custom(LumaIO.LUMA_REF).Output(display_name="luma_ref")],
-            hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
-            ],
+            outputs=[IO.Custom(LumaIO.LUMA_REF).Output(display_name="luma_ref")],
         )
 
     @classmethod
-    def execute(
-        cls, image: torch.Tensor, weight: float, luma_ref: LumaReferenceChain = None
-    ) -> comfy_io.NodeOutput:
+    def execute(cls, image: torch.Tensor, weight: float, luma_ref: LumaReferenceChain = None) -> IO.NodeOutput:
         if luma_ref is not None:
             luma_ref = luma_ref.clone()
         else:
             luma_ref = LumaReferenceChain()
         luma_ref.add(LumaReference(image=image, weight=round(weight, 2)))
-        return comfy_io.NodeOutput(luma_ref)
+        return IO.NodeOutput(luma_ref)
 
 
-class LumaConceptsNode(comfy_io.ComfyNode):
-    """
-    Holds one or more Camera Concepts for use with Luma Text to Video and Luma Image to Video nodes.
-    """
-
+class LumaConceptsNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="LumaConceptsNode",
             display_name="Luma Concepts",
             category="api node/video/Luma",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Camera Concepts for use with Luma Text to Video and Luma Image to Video nodes.",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "concept1",
                     options=get_luma_concepts(include_none=True),
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "concept2",
                     options=get_luma_concepts(include_none=True),
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "concept3",
                     options=get_luma_concepts(include_none=True),
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "concept4",
                     options=get_luma_concepts(include_none=True),
                 ),
-                comfy_io.Custom(LumaIO.LUMA_CONCEPTS).Input(
+                IO.Custom(LumaIO.LUMA_CONCEPTS).Input(
                     "luma_concepts",
                     tooltip="Optional Camera Concepts to add to the ones chosen here.",
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Custom(LumaIO.LUMA_CONCEPTS).Output(display_name="luma_concepts")],
-            hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
-            ],
+            outputs=[IO.Custom(LumaIO.LUMA_CONCEPTS).Output(display_name="luma_concepts")],
         )
 
     @classmethod
@@ -153,42 +119,38 @@ class LumaConceptsNode(comfy_io.ComfyNode):
         concept3: str,
         concept4: str,
         luma_concepts: LumaConceptChain = None,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         chain = LumaConceptChain(str_list=[concept1, concept2, concept3, concept4])
         if luma_concepts is not None:
             chain = luma_concepts.clone_and_merge(chain)
-        return comfy_io.NodeOutput(chain)
+        return IO.NodeOutput(chain)
 
 
-class LumaImageGenerationNode(comfy_io.ComfyNode):
-    """
-    Generates images synchronously based on prompt and aspect ratio.
-    """
-
+class LumaImageGenerationNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="LumaImageNode",
             display_name="Luma Text to Image",
             category="api node/image/Luma",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates images synchronously based on prompt and aspect ratio.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the image generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=LumaImageModel,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=LumaAspectRatio,
                     default=LumaAspectRatio.ratio_16_9,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -196,7 +158,7 @@ class LumaImageGenerationNode(comfy_io.ComfyNode):
                     control_after_generate=True,
                     tooltip="Seed to determine if node should re-run; actual results are nondeterministic regardless of seed.",
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "style_image_weight",
                     default=1.0,
                     min=0.0,
@@ -204,27 +166,27 @@ class LumaImageGenerationNode(comfy_io.ComfyNode):
                     step=0.01,
                     tooltip="Weight of style image. Ignored if no style_image provided.",
                 ),
-                comfy_io.Custom(LumaIO.LUMA_REF).Input(
+                IO.Custom(LumaIO.LUMA_REF).Input(
                     "image_luma_ref",
                     tooltip="Luma Reference node connection to influence generation with input images; up to 4 images can be considered.",
                     optional=True,
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "style_image",
                     tooltip="Style reference image; only 1 image will be used.",
                     optional=True,
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "character_image",
                     tooltip="Character reference images; can be a batch of multiple, up to 4 images can be considered.",
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Image.Output()],
+            outputs=[IO.Image.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -237,45 +199,30 @@ class LumaImageGenerationNode(comfy_io.ComfyNode):
         aspect_ratio: str,
         seed,
         style_image_weight: float,
-        image_luma_ref: LumaReferenceChain = None,
-        style_image: torch.Tensor = None,
-        character_image: torch.Tensor = None,
-    ) -> comfy_io.NodeOutput:
+        image_luma_ref: Optional[LumaReferenceChain] = None,
+        style_image: Optional[torch.Tensor] = None,
+        character_image: Optional[torch.Tensor] = None,
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=True, min_length=3)
-        auth_kwargs = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
         # handle image_luma_ref
         api_image_ref = None
         if image_luma_ref is not None:
-            api_image_ref = await cls._convert_luma_refs(
-                image_luma_ref, max_refs=4, auth_kwargs=auth_kwargs,
-            )
+            api_image_ref = await cls._convert_luma_refs(image_luma_ref, max_refs=4)
         # handle style_luma_ref
         api_style_ref = None
         if style_image is not None:
-            api_style_ref = await cls._convert_style_image(
-                style_image, weight=style_image_weight, auth_kwargs=auth_kwargs,
-            )
+            api_style_ref = await cls._convert_style_image(style_image, weight=style_image_weight)
         # handle character_ref images
         character_ref = None
         if character_image is not None:
-            download_urls = await upload_images_to_comfyapi(
-                character_image, max_images=4, auth_kwargs=auth_kwargs,
-            )
-            character_ref = LumaCharacterRef(
-                identity0=LumaImageIdentity(images=download_urls)
-            )
+            download_urls = await upload_images_to_comfyapi(cls, character_image, max_images=4)
+            character_ref = LumaCharacterRef(identity0=LumaImageIdentity(images=download_urls))
 
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/luma/generations/image",
-                method=HttpMethod.POST,
-                request_model=LumaImageGenerationRequest,
-                response_model=LumaGeneration,
-            ),
-            request=LumaImageGenerationRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/luma/generations/image", method="POST"),
+            response_model=LumaGeneration,
+            data=LumaImageGenerationRequest(
                 prompt=prompt,
                 model=model,
                 aspect_ratio=aspect_ratio,
@@ -283,41 +230,21 @@ class LumaImageGenerationNode(comfy_io.ComfyNode):
                 style_ref=api_style_ref,
                 character_ref=character_ref,
             ),
-            auth_kwargs=auth_kwargs,
         )
-        response_api: LumaGeneration = await operation.execute()
-
-        operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/luma/generations/{response_api.id}",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=LumaGeneration,
-            ),
-            completed_statuses=[LumaState.completed],
-            failed_statuses=[LumaState.failed],
+        response_poll = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/luma/generations/{response_api.id}"),
+            response_model=LumaGeneration,
             status_extractor=lambda x: x.state,
-            result_url_extractor=image_result_url_extractor,
-            node_id=cls.hidden.unique_id,
-            auth_kwargs=auth_kwargs,
         )
-        response_poll = await operation.execute()
-
-        async with aiohttp.ClientSession() as session:
-            async with session.get(response_poll.assets.image) as img_response:
-                img = process_image_response(await img_response.content.read())
-        return comfy_io.NodeOutput(img)
+        return IO.NodeOutput(await download_url_to_image_tensor(response_poll.assets.image))
 
     @classmethod
-    async def _convert_luma_refs(
-        cls, luma_ref: LumaReferenceChain, max_refs: int, auth_kwargs: Optional[dict[str,str]] = None
-    ):
+    async def _convert_luma_refs(cls, luma_ref: LumaReferenceChain, max_refs: int):
         luma_urls = []
         ref_count = 0
         for ref in luma_ref.refs:
-            download_urls = await upload_images_to_comfyapi(
-                ref.image, max_images=1, auth_kwargs=auth_kwargs
-            )
+            download_urls = await upload_images_to_comfyapi(cls, ref.image, max_images=1)
             luma_urls.append(download_urls[0])
             ref_count += 1
             if ref_count >= max_refs:
@@ -325,38 +252,30 @@ class LumaImageGenerationNode(comfy_io.ComfyNode):
         return luma_ref.create_api_model(download_urls=luma_urls, max_refs=max_refs)
 
     @classmethod
-    async def _convert_style_image(
-        cls, style_image: torch.Tensor, weight: float, auth_kwargs: Optional[dict[str,str]] = None
-    ):
-        chain = LumaReferenceChain(
-            first_ref=LumaReference(image=style_image, weight=weight)
-        )
-        return await cls._convert_luma_refs(chain, max_refs=1, auth_kwargs=auth_kwargs)
+    async def _convert_style_image(cls, style_image: torch.Tensor, weight: float):
+        chain = LumaReferenceChain(first_ref=LumaReference(image=style_image, weight=weight))
+        return await cls._convert_luma_refs(chain, max_refs=1)
 
 
-class LumaImageModifyNode(comfy_io.ComfyNode):
-    """
-    Modifies images synchronously based on prompt and aspect ratio.
-    """
-
+class LumaImageModifyNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="LumaImageModifyNode",
             display_name="Luma Image to Image",
             category="api node/image/Luma",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Modifies images synchronously based on prompt and aspect ratio.",
             inputs=[
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the image generation",
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "image_weight",
                     default=0.1,
                     min=0.0,
@@ -364,11 +283,11 @@ class LumaImageModifyNode(comfy_io.ComfyNode):
                     step=0.01,
                     tooltip="Weight of the image; the closer to 1.0, the less the image will be modified.",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=LumaImageModel,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -377,11 +296,11 @@ class LumaImageModifyNode(comfy_io.ComfyNode):
                     tooltip="Seed to determine if node should re-run; actual results are nondeterministic regardless of seed.",
                 ),
             ],
-            outputs=[comfy_io.Image.Output()],
+            outputs=[IO.Image.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -394,99 +313,68 @@ class LumaImageModifyNode(comfy_io.ComfyNode):
         image: torch.Tensor,
         image_weight: float,
         seed,
-    ) -> comfy_io.NodeOutput:
-        auth_kwargs = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        # first, upload image
-        download_urls = await upload_images_to_comfyapi(
-            image, max_images=1, auth_kwargs=auth_kwargs,
-        )
+    ) -> IO.NodeOutput:
+        download_urls = await upload_images_to_comfyapi(cls, image, max_images=1)
         image_url = download_urls[0]
-        # next, make Luma call with download url provided
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/luma/generations/image",
-                method=HttpMethod.POST,
-                request_model=LumaImageGenerationRequest,
-                response_model=LumaGeneration,
-            ),
-            request=LumaImageGenerationRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/luma/generations/image", method="POST"),
+            response_model=LumaGeneration,
+            data=LumaImageGenerationRequest(
                 prompt=prompt,
                 model=model,
                 modify_image_ref=LumaModifyImageRef(
-                    url=image_url, weight=round(max(min(1.0-image_weight, 0.98), 0.0), 2)
+                    url=image_url, weight=round(max(min(1.0 - image_weight, 0.98), 0.0), 2)
                 ),
             ),
-            auth_kwargs=auth_kwargs,
         )
-        response_api: LumaGeneration = await operation.execute()
-
-        operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/luma/generations/{response_api.id}",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=LumaGeneration,
-            ),
-            completed_statuses=[LumaState.completed],
-            failed_statuses=[LumaState.failed],
+        response_poll = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/luma/generations/{response_api.id}"),
+            response_model=LumaGeneration,
             status_extractor=lambda x: x.state,
-            result_url_extractor=image_result_url_extractor,
-            node_id=cls.hidden.unique_id,
-            auth_kwargs=auth_kwargs,
         )
-        response_poll = await operation.execute()
-
-        async with aiohttp.ClientSession() as session:
-            async with session.get(response_poll.assets.image) as img_response:
-                img = process_image_response(await img_response.content.read())
-        return comfy_io.NodeOutput(img)
+        return IO.NodeOutput(await download_url_to_image_tensor(response_poll.assets.image))
 
 
-class LumaTextToVideoGenerationNode(comfy_io.ComfyNode):
-    """
-    Generates videos synchronously based on prompt and output_size.
-    """
-
+class LumaTextToVideoGenerationNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="LumaVideoNode",
             display_name="Luma Text to Video",
             category="api node/video/Luma",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates videos synchronously based on prompt and output_size.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the video generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=LumaVideoModel,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=LumaAspectRatio,
                     default=LumaAspectRatio.ratio_16_9,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=LumaVideoOutputResolution,
                     default=LumaVideoOutputResolution.res_540p,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration",
                     options=LumaVideoModelOutputDuration,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "loop",
                     default=False,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -494,17 +382,17 @@ class LumaTextToVideoGenerationNode(comfy_io.ComfyNode):
                     control_after_generate=True,
                     tooltip="Seed to determine if node should re-run; actual results are nondeterministic regardless of seed.",
                 ),
-                comfy_io.Custom(LumaIO.LUMA_CONCEPTS).Input(
+                IO.Custom(LumaIO.LUMA_CONCEPTS).Input(
                     "luma_concepts",
                     tooltip="Optional Camera Concepts to dictate camera motion via the Luma Concepts node.",
                     optional=True,
-                )
+                ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -519,24 +407,17 @@ class LumaTextToVideoGenerationNode(comfy_io.ComfyNode):
         duration: str,
         loop: bool,
         seed,
-        luma_concepts: LumaConceptChain = None,
-    ) -> comfy_io.NodeOutput:
+        luma_concepts: Optional[LumaConceptChain] = None,
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=False, min_length=3)
         duration = duration if model != LumaVideoModel.ray_1_6 else None
         resolution = resolution if model != LumaVideoModel.ray_1_6 else None
 
-        auth_kwargs = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/luma/generations",
-                method=HttpMethod.POST,
-                request_model=LumaGenerationRequest,
-                response_model=LumaGeneration,
-            ),
-            request=LumaGenerationRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/luma/generations", method="POST"),
+            response_model=LumaGeneration,
+            data=LumaGenerationRequest(
                 prompt=prompt,
                 model=model,
                 resolution=resolution,
@@ -545,77 +426,55 @@ class LumaTextToVideoGenerationNode(comfy_io.ComfyNode):
                 loop=loop,
                 concepts=luma_concepts.create_api_model() if luma_concepts else None,
             ),
-            auth_kwargs=auth_kwargs,
         )
-        response_api: LumaGeneration = await operation.execute()
-
-        if cls.hidden.unique_id:
-            PromptServer.instance.send_progress_text(f"Luma video generation started: {response_api.id}", cls.hidden.unique_id)
-
-        operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/luma/generations/{response_api.id}",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=LumaGeneration,
-            ),
-            completed_statuses=[LumaState.completed],
-            failed_statuses=[LumaState.failed],
+        response_poll = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/luma/generations/{response_api.id}"),
+            response_model=LumaGeneration,
             status_extractor=lambda x: x.state,
-            result_url_extractor=video_result_url_extractor,
-            node_id=cls.hidden.unique_id,
             estimated_duration=LUMA_T2V_AVERAGE_DURATION,
-            auth_kwargs=auth_kwargs,
         )
-        response_poll = await operation.execute()
-
-        async with aiohttp.ClientSession() as session:
-            async with session.get(response_poll.assets.video) as vid_response:
-                return comfy_io.NodeOutput(VideoFromFile(BytesIO(await vid_response.content.read())))
+        return IO.NodeOutput(await download_url_to_video_output(response_poll.assets.video))
 
 
-class LumaImageToVideoGenerationNode(comfy_io.ComfyNode):
-    """
-    Generates videos synchronously based on prompt, input images, and output_size.
-    """
-
+class LumaImageToVideoGenerationNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="LumaImageToVideoNode",
             display_name="Luma Image to Video",
             category="api node/video/Luma",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates videos synchronously based on prompt, input images, and output_size.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the video generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=LumaVideoModel,
                 ),
-                # comfy_io.Combo.Input(
+                # IO.Combo.Input(
                 #     "aspect_ratio",
                 #     options=[ratio.value for ratio in LumaAspectRatio],
                 #     default=LumaAspectRatio.ratio_16_9,
                 # ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=LumaVideoOutputResolution,
                     default=LumaVideoOutputResolution.res_540p,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration",
                     options=[dur.value for dur in LumaVideoModelOutputDuration],
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "loop",
                     default=False,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -623,27 +482,27 @@ class LumaImageToVideoGenerationNode(comfy_io.ComfyNode):
                     control_after_generate=True,
                     tooltip="Seed to determine if node should re-run; actual results are nondeterministic regardless of seed.",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "first_image",
                     tooltip="First frame of generated video.",
                     optional=True,
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "last_image",
                     tooltip="Last frame of generated video.",
                     optional=True,
                 ),
-                comfy_io.Custom(LumaIO.LUMA_CONCEPTS).Input(
+                IO.Custom(LumaIO.LUMA_CONCEPTS).Input(
                     "luma_concepts",
                     tooltip="Optional Camera Concepts to dictate camera motion via the Luma Concepts node.",
                     optional=True,
-                )
+                ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -660,27 +519,17 @@ class LumaImageToVideoGenerationNode(comfy_io.ComfyNode):
         first_image: torch.Tensor = None,
         last_image: torch.Tensor = None,
         luma_concepts: LumaConceptChain = None,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         if first_image is None and last_image is None:
-            raise Exception(
-                "At least one of first_image and last_image requires an input."
-            )
-        auth_kwargs = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        keyframes = await cls._convert_to_keyframes(first_image, last_image, auth_kwargs=auth_kwargs)
+            raise Exception("At least one of first_image and last_image requires an input.")
+        keyframes = await cls._convert_to_keyframes(first_image, last_image)
         duration = duration if model != LumaVideoModel.ray_1_6 else None
         resolution = resolution if model != LumaVideoModel.ray_1_6 else None
-
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/luma/generations",
-                method=HttpMethod.POST,
-                request_model=LumaGenerationRequest,
-                response_model=LumaGeneration,
-            ),
-            request=LumaGenerationRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/luma/generations", method="POST"),
+            response_model=LumaGeneration,
+            data=LumaGenerationRequest(
                 prompt=prompt,
                 model=model,
                 aspect_ratio=LumaAspectRatio.ratio_16_9,  # ignored, but still needed by the API for some reason
@@ -690,61 +539,38 @@ class LumaImageToVideoGenerationNode(comfy_io.ComfyNode):
                 keyframes=keyframes,
                 concepts=luma_concepts.create_api_model() if luma_concepts else None,
             ),
-            auth_kwargs=auth_kwargs,
         )
-        response_api: LumaGeneration = await operation.execute()
-
-        if cls.hidden.unique_id:
-            PromptServer.instance.send_progress_text(f"Luma video generation started: {response_api.id}", cls.hidden.unique_id)
-
-        operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/luma/generations/{response_api.id}",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=LumaGeneration,
-            ),
-            completed_statuses=[LumaState.completed],
-            failed_statuses=[LumaState.failed],
+        response_poll = await poll_op(
+            cls,
+            poll_endpoint=ApiEndpoint(path=f"/proxy/luma/generations/{response_api.id}"),
+            response_model=LumaGeneration,
             status_extractor=lambda x: x.state,
-            result_url_extractor=video_result_url_extractor,
-            node_id=cls.hidden.unique_id,
             estimated_duration=LUMA_I2V_AVERAGE_DURATION,
-            auth_kwargs=auth_kwargs,
         )
-        response_poll = await operation.execute()
-
-        async with aiohttp.ClientSession() as session:
-            async with session.get(response_poll.assets.video) as vid_response:
-                return comfy_io.NodeOutput(VideoFromFile(BytesIO(await vid_response.content.read())))
+        return IO.NodeOutput(await download_url_to_video_output(response_poll.assets.video))
 
     @classmethod
     async def _convert_to_keyframes(
         cls,
         first_image: torch.Tensor = None,
         last_image: torch.Tensor = None,
-        auth_kwargs: Optional[dict[str,str]] = None,
     ):
         if first_image is None and last_image is None:
             return None
         frame0 = None
         frame1 = None
         if first_image is not None:
-            download_urls = await upload_images_to_comfyapi(
-                first_image, max_images=1, auth_kwargs=auth_kwargs,
-            )
+            download_urls = await upload_images_to_comfyapi(cls, first_image, max_images=1)
             frame0 = LumaImageReference(type="image", url=download_urls[0])
         if last_image is not None:
-            download_urls = await upload_images_to_comfyapi(
-                last_image, max_images=1, auth_kwargs=auth_kwargs,
-            )
+            download_urls = await upload_images_to_comfyapi(cls, last_image, max_images=1)
             frame1 = LumaImageReference(type="image", url=download_urls[0])
         return LumaKeyframes(frame0=frame0, frame1=frame1)
 
 
 class LumaExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             LumaImageGenerationNode,
             LumaImageModifyNode,

comfy_api_nodes/nodes_minimax.py

@@ -1,71 +1,57 @@
-from inspect import cleandoc
 from typing import Optional
-import logging
-import torch
 
+import torch
 from typing_extensions import override
-from comfy_api.latest import ComfyExtension, io as comfy_io
-from comfy_api.input_impl.video_types import VideoFromFile
-from comfy_api_nodes.apis import (
+
+from comfy_api.latest import IO, ComfyExtension
+from comfy_api_nodes.apis.minimax_api import (
+    MinimaxFileRetrieveResponse,
+    MiniMaxModel,
+    MinimaxTaskResultResponse,
     MinimaxVideoGenerationRequest,
     MinimaxVideoGenerationResponse,
-    MinimaxFileRetrieveResponse,
-    MinimaxTaskResultResponse,
     SubjectReferenceItem,
-    MiniMaxModel,
 )
-from comfy_api_nodes.apis.client import (
+from comfy_api_nodes.util import (
     ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-    EmptyRequest,
-)
-from comfy_api_nodes.apinode_utils import (
-    download_url_to_bytesio,
+    download_url_to_video_output,
+    poll_op,
+    sync_op,
     upload_images_to_comfyapi,
     validate_string,
 )
-from server import PromptServer
-
 
 I2V_AVERAGE_DURATION = 114
 T2V_AVERAGE_DURATION = 234
 
 
 async def _generate_mm_video(
+    cls: type[IO.ComfyNode],
     *,
-    auth: dict[str, str],
-    node_id: str,
     prompt_text: str,
     seed: int,
     model: str,
-    image: Optional[torch.Tensor] = None,   # used for ImageToVideo
-    subject: Optional[torch.Tensor] = None, # used for SubjectToVideo
+    image: Optional[torch.Tensor] = None,  # used for ImageToVideo
+    subject: Optional[torch.Tensor] = None,  # used for SubjectToVideo
     average_duration: Optional[int] = None,
-) -> comfy_io.NodeOutput:
+) -> IO.NodeOutput:
     if image is None:
         validate_string(prompt_text, field_name="prompt_text")
-    # upload image, if passed in
     image_url = None
     if image is not None:
-        image_url = (await upload_images_to_comfyapi(image, max_images=1, auth_kwargs=auth))[0]
+        image_url = (await upload_images_to_comfyapi(cls, image, max_images=1))[0]
 
     # TODO: figure out how to deal with subject properly, API returns invalid params when using S2V-01 model
     subject_reference = None
     if subject is not None:
-        subject_url = (await upload_images_to_comfyapi(subject, max_images=1, auth_kwargs=auth))[0]
+        subject_url = (await upload_images_to_comfyapi(cls, subject, max_images=1))[0]
         subject_reference = [SubjectReferenceItem(image=subject_url)]
 
-
-    video_generate_operation = SynchronousOperation(
-        endpoint=ApiEndpoint(
-            path="/proxy/minimax/video_generation",
-            method=HttpMethod.POST,
-            request_model=MinimaxVideoGenerationRequest,
-            response_model=MinimaxVideoGenerationResponse,
-        ),
-        request=MinimaxVideoGenerationRequest(
+    response = await sync_op(
+        cls,
+        ApiEndpoint(path="/proxy/minimax/video_generation", method="POST"),
+        response_model=MinimaxVideoGenerationResponse,
+        data=MinimaxVideoGenerationRequest(
             model=MiniMaxModel(model),
             prompt=prompt_text,
             callback_url=None,
@@ -73,95 +59,64 @@ async def _generate_mm_video(
             subject_reference=subject_reference,
             prompt_optimizer=None,
         ),
-        auth_kwargs=auth,
     )
-    response = await video_generate_operation.execute()
 
     task_id = response.task_id
     if not task_id:
         raise Exception(f"MiniMax generation failed: {response.base_resp}")
 
-    video_generate_operation = PollingOperation(
-        poll_endpoint=ApiEndpoint(
-            path="/proxy/minimax/query/video_generation",
-            method=HttpMethod.GET,
-            request_model=EmptyRequest,
-            response_model=MinimaxTaskResultResponse,
-            query_params={"task_id": task_id},
-        ),
-        completed_statuses=["Success"],
-        failed_statuses=["Fail"],
+    task_result = await poll_op(
+        cls,
+        ApiEndpoint(path="/proxy/minimax/query/video_generation", query_params={"task_id": task_id}),
+        response_model=MinimaxTaskResultResponse,
         status_extractor=lambda x: x.status.value,
         estimated_duration=average_duration,
-        node_id=node_id,
-        auth_kwargs=auth,
     )
-    task_result = await video_generate_operation.execute()
 
     file_id = task_result.file_id
     if file_id is None:
         raise Exception("Request was not successful. Missing file ID.")
-    file_retrieve_operation = SynchronousOperation(
-        endpoint=ApiEndpoint(
-            path="/proxy/minimax/files/retrieve",
-            method=HttpMethod.GET,
-            request_model=EmptyRequest,
-            response_model=MinimaxFileRetrieveResponse,
-            query_params={"file_id": int(file_id)},
-        ),
-        request=EmptyRequest(),
-        auth_kwargs=auth,
+    file_result = await sync_op(
+        cls,
+        ApiEndpoint(path="/proxy/minimax/files/retrieve", query_params={"file_id": int(file_id)}),
+        response_model=MinimaxFileRetrieveResponse,
     )
-    file_result = await file_retrieve_operation.execute()
 
     file_url = file_result.file.download_url
     if file_url is None:
-        raise Exception(
-            f"No video was found in the response. Full response: {file_result.model_dump()}"
-        )
-    logging.info("Generated video URL: %s", file_url)
-    if node_id:
-        if hasattr(file_result.file, "backup_download_url"):
-            message = f"Result URL: {file_url}\nBackup URL: {file_result.file.backup_download_url}"
-        else:
-            message = f"Result URL: {file_url}"
-        PromptServer.instance.send_progress_text(message, node_id)
-
-    # Download and return as VideoFromFile
-    video_io = await download_url_to_bytesio(file_url)
-    if video_io is None:
-        error_msg = f"Failed to download video from {file_url}"
-        logging.error(error_msg)
-        raise Exception(error_msg)
-    return comfy_io.NodeOutput(VideoFromFile(video_io))
+        raise Exception(f"No video was found in the response. Full response: {file_result.model_dump()}")
+    if file_result.file.backup_download_url:
+        try:
+            return IO.NodeOutput(await download_url_to_video_output(file_url, timeout=10, max_retries=2))
+        except Exception:  # if we have a second URL to retrieve the result, try again using that one
+            return IO.NodeOutput(
+                await download_url_to_video_output(file_result.file.backup_download_url, max_retries=3)
+            )
+    return IO.NodeOutput(await download_url_to_video_output(file_url))
 
 
-class MinimaxTextToVideoNode(comfy_io.ComfyNode):
-    """
-    Generates videos synchronously based on a prompt, and optional parameters using MiniMax's API.
-    """
-
+class MinimaxTextToVideoNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="MinimaxTextToVideoNode",
             display_name="MiniMax Text to Video",
             category="api node/video/MiniMax",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates videos synchronously based on a prompt, and optional parameters.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt_text",
                     multiline=True,
                     default="",
                     tooltip="Text prompt to guide the video generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["T2V-01", "T2V-01-Director"],
                     default="T2V-01",
                     tooltip="Model to use for video generation",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -172,11 +127,11 @@ class MinimaxTextToVideoNode(comfy_io.ComfyNode):
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -187,13 +142,9 @@ class MinimaxTextToVideoNode(comfy_io.ComfyNode):
         prompt_text: str,
         model: str = "T2V-01",
         seed: int = 0,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         return await _generate_mm_video(
-            auth={
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
-            node_id=cls.hidden.unique_id,
+            cls,
             prompt_text=prompt_text,
             seed=seed,
             model=model,
@@ -203,36 +154,32 @@ class MinimaxTextToVideoNode(comfy_io.ComfyNode):
         )
 
 
-class MinimaxImageToVideoNode(comfy_io.ComfyNode):
-    """
-    Generates videos synchronously based on an image and prompt, and optional parameters using MiniMax's API.
-    """
-
+class MinimaxImageToVideoNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="MinimaxImageToVideoNode",
             display_name="MiniMax Image to Video",
             category="api node/video/MiniMax",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates videos synchronously based on an image and prompt, and optional parameters.",
             inputs=[
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     tooltip="Image to use as first frame of video generation",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt_text",
                     multiline=True,
                     default="",
                     tooltip="Text prompt to guide the video generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["I2V-01-Director", "I2V-01", "I2V-01-live"],
                     default="I2V-01",
                     tooltip="Model to use for video generation",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -243,11 +190,11 @@ class MinimaxImageToVideoNode(comfy_io.ComfyNode):
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -259,13 +206,9 @@ class MinimaxImageToVideoNode(comfy_io.ComfyNode):
         prompt_text: str,
         model: str = "I2V-01",
         seed: int = 0,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         return await _generate_mm_video(
-            auth={
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
-            node_id=cls.hidden.unique_id,
+            cls,
             prompt_text=prompt_text,
             seed=seed,
             model=model,
@@ -275,36 +218,32 @@ class MinimaxImageToVideoNode(comfy_io.ComfyNode):
         )
 
 
-class MinimaxSubjectToVideoNode(comfy_io.ComfyNode):
-    """
-    Generates videos synchronously based on an image and prompt, and optional parameters using MiniMax's API.
-    """
-
+class MinimaxSubjectToVideoNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="MinimaxSubjectToVideoNode",
             display_name="MiniMax Subject to Video",
             category="api node/video/MiniMax",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates videos synchronously based on an image and prompt, and optional parameters.",
             inputs=[
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "subject",
                     tooltip="Image of subject to reference for video generation",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt_text",
                     multiline=True,
                     default="",
                     tooltip="Text prompt to guide the video generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["S2V-01"],
                     default="S2V-01",
                     tooltip="Model to use for video generation",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -315,11 +254,11 @@ class MinimaxSubjectToVideoNode(comfy_io.ComfyNode):
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -331,13 +270,9 @@ class MinimaxSubjectToVideoNode(comfy_io.ComfyNode):
         prompt_text: str,
         model: str = "S2V-01",
         seed: int = 0,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         return await _generate_mm_video(
-            auth={
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
-            node_id=cls.hidden.unique_id,
+            cls,
             prompt_text=prompt_text,
             seed=seed,
             model=model,
@@ -347,24 +282,22 @@ class MinimaxSubjectToVideoNode(comfy_io.ComfyNode):
         )
 
 
-class MinimaxHailuoVideoNode(comfy_io.ComfyNode):
-    """Generates videos from prompt, with optional start frame using the new MiniMax Hailuo-02 model."""
-
+class MinimaxHailuoVideoNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="MinimaxHailuoVideoNode",
             display_name="MiniMax Hailuo Video",
             category="api node/video/MiniMax",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates videos from prompt, with optional start frame using the new MiniMax Hailuo-02 model.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt_text",
                     multiline=True,
                     default="",
                     tooltip="Text prompt to guide the video generation.",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -374,25 +307,25 @@ class MinimaxHailuoVideoNode(comfy_io.ComfyNode):
                     tooltip="The random seed used for creating the noise.",
                     optional=True,
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "first_frame_image",
                     tooltip="Optional image to use as the first frame to generate a video.",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "prompt_optimizer",
                     default=True,
                     tooltip="Optimize prompt to improve generation quality when needed.",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration",
                     options=[6, 10],
                     default=6,
                     tooltip="The length of the output video in seconds.",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=["768P", "1080P"],
                     default="768P",
@@ -400,11 +333,11 @@ class MinimaxHailuoVideoNode(comfy_io.ComfyNode):
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -419,11 +352,7 @@ class MinimaxHailuoVideoNode(comfy_io.ComfyNode):
         duration: int = 6,
         resolution: str = "768P",
         model: str = "MiniMax-Hailuo-02",
-    ) -> comfy_io.NodeOutput:
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
+    ) -> IO.NodeOutput:
         if first_frame_image is None:
             validate_string(prompt_text, field_name="prompt_text")
 
@@ -435,16 +364,13 @@ class MinimaxHailuoVideoNode(comfy_io.ComfyNode):
         # upload image, if passed in
         image_url = None
         if first_frame_image is not None:
-            image_url = (await upload_images_to_comfyapi(first_frame_image, max_images=1, auth_kwargs=auth))[0]
+            image_url = (await upload_images_to_comfyapi(cls, first_frame_image, max_images=1))[0]
 
-        video_generate_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/minimax/video_generation",
-                method=HttpMethod.POST,
-                request_model=MinimaxVideoGenerationRequest,
-                response_model=MinimaxVideoGenerationResponse,
-            ),
-            request=MinimaxVideoGenerationRequest(
+        response = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/minimax/video_generation", method="POST"),
+            response_model=MinimaxVideoGenerationResponse,
+            data=MinimaxVideoGenerationRequest(
                 model=MiniMaxModel(model),
                 prompt=prompt_text,
                 callback_url=None,
@@ -453,72 +379,47 @@ class MinimaxHailuoVideoNode(comfy_io.ComfyNode):
                 duration=duration,
                 resolution=resolution,
             ),
-            auth_kwargs=auth,
         )
-        response = await video_generate_operation.execute()
 
         task_id = response.task_id
         if not task_id:
             raise Exception(f"MiniMax generation failed: {response.base_resp}")
 
         average_duration = 120 if resolution == "768P" else 240
-        video_generate_operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path="/proxy/minimax/query/video_generation",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=MinimaxTaskResultResponse,
-                query_params={"task_id": task_id},
-            ),
-            completed_statuses=["Success"],
-            failed_statuses=["Fail"],
+        task_result = await poll_op(
+            cls,
+            ApiEndpoint(path="/proxy/minimax/query/video_generation", query_params={"task_id": task_id}),
+            response_model=MinimaxTaskResultResponse,
             status_extractor=lambda x: x.status.value,
             estimated_duration=average_duration,
-            node_id=cls.hidden.unique_id,
-            auth_kwargs=auth,
         )
-        task_result = await video_generate_operation.execute()
 
         file_id = task_result.file_id
         if file_id is None:
             raise Exception("Request was not successful. Missing file ID.")
-        file_retrieve_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/minimax/files/retrieve",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=MinimaxFileRetrieveResponse,
-                query_params={"file_id": int(file_id)},
-            ),
-            request=EmptyRequest(),
-            auth_kwargs=auth,
+        file_result = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/minimax/files/retrieve", query_params={"file_id": int(file_id)}),
+            response_model=MinimaxFileRetrieveResponse,
         )
-        file_result = await file_retrieve_operation.execute()
 
         file_url = file_result.file.download_url
         if file_url is None:
-            raise Exception(
-                f"No video was found in the response. Full response: {file_result.model_dump()}"
-            )
-        logging.info("Generated video URL: %s", file_url)
-        if cls.hidden.unique_id:
-            if hasattr(file_result.file, "backup_download_url"):
-                message = f"Result URL: {file_url}\nBackup URL: {file_result.file.backup_download_url}"
-            else:
-                message = f"Result URL: {file_url}"
-            PromptServer.instance.send_progress_text(message, cls.hidden.unique_id)
+            raise Exception(f"No video was found in the response. Full response: {file_result.model_dump()}")
 
-        video_io = await download_url_to_bytesio(file_url)
-        if video_io is None:
-            error_msg = f"Failed to download video from {file_url}"
-            logging.error(error_msg)
-            raise Exception(error_msg)
-        return comfy_io.NodeOutput(VideoFromFile(video_io))
+        if file_result.file.backup_download_url:
+            try:
+                return IO.NodeOutput(await download_url_to_video_output(file_url, timeout=10, max_retries=2))
+            except Exception:  # if we have a second URL to retrieve the result, try again using that one
+                return IO.NodeOutput(
+                    await download_url_to_video_output(file_result.file.backup_download_url, max_retries=3)
+                )
+        return IO.NodeOutput(await download_url_to_video_output(file_url))
 
 
 class MinimaxExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             MinimaxTextToVideoNode,
             MinimaxImageToVideoNode,

comfy_api_nodes/nodes_moonvalley.py

@@ -1,33 +1,30 @@
 import logging
-from typing import Any, Callable, Optional, TypeVar
+from typing import Optional
+
 import torch
 from typing_extensions import override
-from comfy_api_nodes.util.validation_utils import validate_image_dimensions
-
-from comfy_api_nodes.apis import (
-    MoonvalleyTextToVideoRequest,
-    MoonvalleyTextToVideoInferenceParams,
-    MoonvalleyVideoToVideoInferenceParams,
-    MoonvalleyVideoToVideoRequest,
-    MoonvalleyPromptResponse,
-)
-from comfy_api_nodes.apis.client import (
-    ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-    EmptyRequest,
-)
-from comfy_api_nodes.apinode_utils import (
-    download_url_to_video_output,
-    upload_images_to_comfyapi,
-    upload_video_to_comfyapi,
-)
 
 from comfy_api.input import VideoInput
-from comfy_api.latest import ComfyExtension, InputImpl, io as comfy_io
-import av
-import io
+from comfy_api.latest import IO, ComfyExtension
+from comfy_api_nodes.apis import (
+    MoonvalleyPromptResponse,
+    MoonvalleyTextToVideoInferenceParams,
+    MoonvalleyTextToVideoRequest,
+    MoonvalleyVideoToVideoInferenceParams,
+    MoonvalleyVideoToVideoRequest,
+)
+from comfy_api_nodes.util import (
+    ApiEndpoint,
+    download_url_to_video_output,
+    poll_op,
+    sync_op,
+    trim_video,
+    upload_images_to_comfyapi,
+    upload_video_to_comfyapi,
+    validate_container_format_is_mp4,
+    validate_image_dimensions,
+    validate_string,
+)
 
 API_UPLOADS_ENDPOINT = "/proxy/moonvalley/uploads"
 API_PROMPTS_ENDPOINT = "/proxy/moonvalley/prompts"
@@ -50,13 +47,6 @@ MAX_VID_HEIGHT = 10000
 MAX_VIDEO_SIZE = 1024 * 1024 * 1024  # 1 GB max for in-memory video processing
 
 MOONVALLEY_MAREY_MAX_PROMPT_LENGTH = 5000
-R = TypeVar("R")
-
-
-class MoonvalleyApiError(Exception):
-    """Base exception for Moonvalley API errors."""
-
-    pass
 
 
 def is_valid_task_creation_response(response: MoonvalleyPromptResponse) -> bool:
@@ -68,64 +58,7 @@ def validate_task_creation_response(response) -> None:
     if not is_valid_task_creation_response(response):
         error_msg = f"Moonvalley Marey API: Initial request failed. Code: {response.code}, Message: {response.message}, Data: {response}"
         logging.error(error_msg)
-        raise MoonvalleyApiError(error_msg)
-
-
-def get_video_from_response(response):
-    video = response.output_url
-    logging.info(
-        "Moonvalley Marey API: Task %s succeeded. Video URL: %s", response.id, video
-    )
-    return video
-
-
-def get_video_url_from_response(response) -> Optional[str]:
-    """Returns the first video url from the Moonvalley video generation task result.
-    Will not raise an error if the response is not valid.
-    """
-    if response:
-        return str(get_video_from_response(response))
-    else:
-        return None
-
-
-async def poll_until_finished(
-    auth_kwargs: dict[str, str],
-    api_endpoint: ApiEndpoint[Any, R],
-    result_url_extractor: Optional[Callable[[R], str]] = None,
-    node_id: Optional[str] = None,
-) -> R:
-    """Polls the Moonvalley API endpoint until the task reaches a terminal state, then returns the response."""
-    return await PollingOperation(
-        poll_endpoint=api_endpoint,
-        completed_statuses=[
-            "completed",
-        ],
-        max_poll_attempts=240,  # 64 minutes with 16s interval
-        poll_interval=16.0,
-        failed_statuses=["error"],
-        status_extractor=lambda response: (
-            response.status if response and response.status else None
-        ),
-        auth_kwargs=auth_kwargs,
-        result_url_extractor=result_url_extractor,
-        node_id=node_id,
-    ).execute()
-
-
-def validate_prompts(
-    prompt: str, negative_prompt: str, max_length=MOONVALLEY_MAREY_MAX_PROMPT_LENGTH
-):
-    """Verifies that the prompt isn't empty and that neither prompt is too long."""
-    if not prompt:
-        raise ValueError("Positive prompt is empty")
-    if len(prompt) > max_length:
-        raise ValueError(f"Positive prompt is too long: {len(prompt)} characters")
-    if negative_prompt and len(negative_prompt) > max_length:
-        raise ValueError(
-            f"Negative prompt is too long: {len(negative_prompt)} characters"
-        )
-    return True
+        raise RuntimeError(error_msg)
 
 
 def validate_video_to_video_input(video: VideoInput) -> VideoInput:
@@ -144,7 +77,7 @@ def validate_video_to_video_input(video: VideoInput) -> VideoInput:
     """
     width, height = _get_video_dimensions(video)
     _validate_video_dimensions(width, height)
-    _validate_container_format(video)
+    validate_container_format_is_mp4(video)
 
     return _validate_and_trim_duration(video)
 
@@ -169,21 +102,8 @@ def _validate_video_dimensions(width: int, height: int) -> None:
     }
 
     if (width, height) not in supported_resolutions:
-        supported_list = ", ".join(
-            [f"{w}x{h}" for w, h in sorted(supported_resolutions)]
-        )
-        raise ValueError(
-            f"Resolution {width}x{height} not supported. Supported: {supported_list}"
-        )
-
-
-def _validate_container_format(video: VideoInput) -> None:
-    """Validates video container format is MP4."""
-    container_format = video.get_container_format()
-    if container_format not in ["mp4", "mov,mp4,m4a,3gp,3g2,mj2"]:
-        raise ValueError(
-            f"Only MP4 container format supported. Got: {container_format}"
-        )
+        supported_list = ", ".join([f"{w}x{h}" for w, h in sorted(supported_resolutions)])
+        raise ValueError(f"Resolution {width}x{height} not supported. Supported: {supported_list}")
 
 
 def _validate_and_trim_duration(video: VideoInput) -> VideoInput:
@@ -196,7 +116,7 @@ def _validate_and_trim_duration(video: VideoInput) -> VideoInput:
 def _validate_minimum_duration(duration: float) -> None:
     """Ensures video is at least 5 seconds long."""
     if duration < 5:
-        raise MoonvalleyApiError("Input video must be at least 5 seconds long.")
+        raise ValueError("Input video must be at least 5 seconds long.")
 
 
 def _trim_if_too_long(video: VideoInput, duration: float) -> VideoInput:
@@ -206,123 +126,6 @@ def _trim_if_too_long(video: VideoInput, duration: float) -> VideoInput:
     return video
 
 
-def trim_video(video: VideoInput, duration_sec: float) -> VideoInput:
-    """
-    Returns a new VideoInput object trimmed from the beginning to the specified duration,
-    using av to avoid loading entire video into memory.
-
-    Args:
-        video: Input video to trim
-        duration_sec: Duration in seconds to keep from the beginning
-
-    Returns:
-        VideoFromFile object that owns the output buffer
-    """
-    output_buffer = io.BytesIO()
-
-    input_container = None
-    output_container = None
-
-    try:
-        # Get the stream source - this avoids loading entire video into memory
-        # when the source is already a file path
-        input_source = video.get_stream_source()
-
-        # Open containers
-        input_container = av.open(input_source, mode="r")
-        output_container = av.open(output_buffer, mode="w", format="mp4")
-
-        # Set up output streams for re-encoding
-        video_stream = None
-        audio_stream = None
-
-        for stream in input_container.streams:
-            logging.info("Found stream: type=%s, class=%s", stream.type, type(stream))
-            if isinstance(stream, av.VideoStream):
-                # Create output video stream with same parameters
-                video_stream = output_container.add_stream(
-                    "h264", rate=stream.average_rate
-                )
-                video_stream.width = stream.width
-                video_stream.height = stream.height
-                video_stream.pix_fmt = "yuv420p"
-                logging.info(
-                    "Added video stream: %sx%s @ %sfps", stream.width, stream.height, stream.average_rate
-                )
-            elif isinstance(stream, av.AudioStream):
-                # Create output audio stream with same parameters
-                audio_stream = output_container.add_stream(
-                    "aac", rate=stream.sample_rate
-                )
-                audio_stream.sample_rate = stream.sample_rate
-                audio_stream.layout = stream.layout
-                logging.info("Added audio stream: %sHz, %s channels", stream.sample_rate, stream.channels)
-
-        # Calculate target frame count that's divisible by 16
-        fps = input_container.streams.video[0].average_rate
-        estimated_frames = int(duration_sec * fps)
-        target_frames = (
-            estimated_frames // 16
-        ) * 16  # Round down to nearest multiple of 16
-
-        if target_frames == 0:
-            raise ValueError("Video too short: need at least 16 frames for Moonvalley")
-
-        frame_count = 0
-        audio_frame_count = 0
-
-        # Decode and re-encode video frames
-        if video_stream:
-            for frame in input_container.decode(video=0):
-                if frame_count >= target_frames:
-                    break
-
-                # Re-encode frame
-                for packet in video_stream.encode(frame):
-                    output_container.mux(packet)
-                frame_count += 1
-
-            # Flush encoder
-            for packet in video_stream.encode():
-                output_container.mux(packet)
-
-            logging.info("Encoded %s video frames (target: %s)", frame_count, target_frames)
-
-        # Decode and re-encode audio frames
-        if audio_stream:
-            input_container.seek(0)  # Reset to beginning for audio
-            for frame in input_container.decode(audio=0):
-                if frame.time >= duration_sec:
-                    break
-
-                # Re-encode frame
-                for packet in audio_stream.encode(frame):
-                    output_container.mux(packet)
-                audio_frame_count += 1
-
-            # Flush encoder
-            for packet in audio_stream.encode():
-                output_container.mux(packet)
-
-            logging.info("Encoded %s audio frames", audio_frame_count)
-
-        # Close containers
-        output_container.close()
-        input_container.close()
-
-        # Return as VideoFromFile using the buffer
-        output_buffer.seek(0)
-        return InputImpl.VideoFromFile(output_buffer)
-
-    except Exception as e:
-        # Clean up on error
-        if input_container is not None:
-            input_container.close()
-        if output_container is not None:
-            output_container.close()
-        raise RuntimeError(f"Failed to trim video: {str(e)}") from e
-
-
 def parse_width_height_from_res(resolution: str):
     # Accepts a string like "16:9 (1920 x 1080)" and returns width, height as a dict
     res_map = {
@@ -346,41 +149,36 @@ def parse_control_parameter(value):
     return control_map.get(value, control_map["Motion Transfer"])
 
 
-async def get_response(
-    task_id: str, auth_kwargs: dict[str, str], node_id: Optional[str] = None
-) -> MoonvalleyPromptResponse:
-    return await poll_until_finished(
-        auth_kwargs,
-        ApiEndpoint(
-            path=f"{API_PROMPTS_ENDPOINT}/{task_id}",
-            method=HttpMethod.GET,
-            request_model=EmptyRequest,
-            response_model=MoonvalleyPromptResponse,
-        ),
-        result_url_extractor=get_video_url_from_response,
-        node_id=node_id,
+async def get_response(cls: type[IO.ComfyNode], task_id: str) -> MoonvalleyPromptResponse:
+    return await poll_op(
+        cls,
+        ApiEndpoint(path=f"{API_PROMPTS_ENDPOINT}/{task_id}"),
+        response_model=MoonvalleyPromptResponse,
+        status_extractor=lambda r: (r.status if r and r.status else None),
+        poll_interval=16.0,
+        max_poll_attempts=240,
     )
 
 
-class MoonvalleyImg2VideoNode(comfy_io.ComfyNode):
+class MoonvalleyImg2VideoNode(IO.ComfyNode):
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="MoonvalleyImg2VideoNode",
             display_name="Moonvalley Marey Image to Video",
             category="api node/video/Moonvalley Marey",
             description="Moonvalley Marey Image to Video Node",
             inputs=[
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     tooltip="The reference image used to generate the video",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="<synthetic> <scene cut> gopro, bright, contrast, static, overexposed, vignette, "
@@ -391,7 +189,7 @@ class MoonvalleyImg2VideoNode(comfy_io.ComfyNode):
                     "wobbly, weird, low quality, plastic, stock footage, video camera, boring",
                     tooltip="Negative prompt text",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=[
                         "16:9 (1920 x 1080)",
@@ -404,7 +202,7 @@ class MoonvalleyImg2VideoNode(comfy_io.ComfyNode):
                     default="16:9 (1920 x 1080)",
                     tooltip="Resolution of the output video",
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "prompt_adherence",
                     default=4.5,
                     min=1.0,
@@ -412,17 +210,17 @@ class MoonvalleyImg2VideoNode(comfy_io.ComfyNode):
                     step=1.0,
                     tooltip="Guidance scale for generation control",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=9,
                     min=0,
                     max=4294967295,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Random seed value",
                     control_after_generate=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "steps",
                     default=33,
                     min=1,
@@ -431,11 +229,11 @@ class MoonvalleyImg2VideoNode(comfy_io.ComfyNode):
                     tooltip="Number of denoising steps",
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -450,16 +248,12 @@ class MoonvalleyImg2VideoNode(comfy_io.ComfyNode):
         prompt_adherence: float,
         seed: int,
         steps: int,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_image_dimensions(image, min_width=300, min_height=300, max_height=MAX_HEIGHT, max_width=MAX_WIDTH)
-        validate_prompts(prompt, negative_prompt, MOONVALLEY_MAREY_MAX_PROMPT_LENGTH)
+        validate_string(prompt, min_length=1, max_length=MOONVALLEY_MAREY_MAX_PROMPT_LENGTH)
+        validate_string(negative_prompt, field_name="negative_prompt", max_length=MOONVALLEY_MAREY_MAX_PROMPT_LENGTH)
         width_height = parse_width_height_from_res(resolution)
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-
         inference_params = MoonvalleyTextToVideoInferenceParams(
             negative_prompt=negative_prompt,
             steps=steps,
@@ -472,53 +266,37 @@ class MoonvalleyImg2VideoNode(comfy_io.ComfyNode):
 
         # Get MIME type from tensor - assuming PNG format for image tensors
         mime_type = "image/png"
-
-        image_url = (
-            await upload_images_to_comfyapi(
-                image, max_images=1, auth_kwargs=auth, mime_type=mime_type
-            )
-        )[0]
-
-        request = MoonvalleyTextToVideoRequest(
-            image_url=image_url, prompt_text=prompt, inference_params=inference_params
-        )
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=API_IMG2VIDEO_ENDPOINT,
-                method=HttpMethod.POST,
-                request_model=MoonvalleyTextToVideoRequest,
-                response_model=MoonvalleyPromptResponse,
+        image_url = (await upload_images_to_comfyapi(cls, image, max_images=1, mime_type=mime_type))[0]
+        task_creation_response = await sync_op(
+            cls,
+            endpoint=ApiEndpoint(path=API_IMG2VIDEO_ENDPOINT, method="POST"),
+            response_model=MoonvalleyPromptResponse,
+            data=MoonvalleyTextToVideoRequest(
+                image_url=image_url, prompt_text=prompt, inference_params=inference_params
             ),
-            request=request,
-            auth_kwargs=auth,
         )
-        task_creation_response = await initial_operation.execute()
         validate_task_creation_response(task_creation_response)
-        task_id = task_creation_response.id
-
-        final_response = await get_response(
-            task_id, auth_kwargs=auth, node_id=cls.hidden.unique_id
-        )
+        final_response = await get_response(cls, task_creation_response.id)
         video = await download_url_to_video_output(final_response.output_url)
-        return comfy_io.NodeOutput(video)
+        return IO.NodeOutput(video)
 
 
-class MoonvalleyVideo2VideoNode(comfy_io.ComfyNode):
+class MoonvalleyVideo2VideoNode(IO.ComfyNode):
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="MoonvalleyVideo2VideoNode",
             display_name="Moonvalley Marey Video to Video",
             category="api node/video/Moonvalley Marey",
             description="",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     tooltip="Describes the video to generate",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="<synthetic> <scene cut> gopro, bright, contrast, static, overexposed, vignette, "
@@ -529,28 +307,28 @@ class MoonvalleyVideo2VideoNode(comfy_io.ComfyNode):
                     "wobbly, weird, low quality, plastic, stock footage, video camera, boring",
                     tooltip="Negative prompt text",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=9,
                     min=0,
                     max=4294967295,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Random seed value",
                     control_after_generate=False,
                 ),
-                comfy_io.Video.Input(
+                IO.Video.Input(
                     "video",
                     tooltip="The reference video used to generate the output video. Must be at least 5 seconds long. "
                     "Videos longer than 5s will be automatically trimmed. Only MP4 format supported.",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "control_type",
                     options=["Motion Transfer", "Pose Transfer"],
                     default="Motion Transfer",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "motion_intensity",
                     default=100,
                     min=0,
@@ -559,21 +337,21 @@ class MoonvalleyVideo2VideoNode(comfy_io.ComfyNode):
                     tooltip="Only used if control_type is 'Motion Transfer'",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "steps",
                     default=33,
                     min=1,
                     max=100,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Number of inference steps",
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -589,16 +367,11 @@ class MoonvalleyVideo2VideoNode(comfy_io.ComfyNode):
         motion_intensity: Optional[int] = 100,
         steps=33,
         prompt_adherence=4.5,
-    ) -> comfy_io.NodeOutput:
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-
+    ) -> IO.NodeOutput:
         validated_video = validate_video_to_video_input(video)
-        video_url = await upload_video_to_comfyapi(validated_video, auth_kwargs=auth)
-
-        validate_prompts(prompt, negative_prompt)
+        video_url = await upload_video_to_comfyapi(cls, validated_video)
+        validate_string(prompt, min_length=1, max_length=MOONVALLEY_MAREY_MAX_PROMPT_LENGTH)
+        validate_string(negative_prompt, field_name="negative_prompt", max_length=MOONVALLEY_MAREY_MAX_PROMPT_LENGTH)
 
         # Only include motion_intensity for Motion Transfer
         control_params = {}
@@ -613,52 +386,37 @@ class MoonvalleyVideo2VideoNode(comfy_io.ComfyNode):
             guidance_scale=prompt_adherence,
         )
 
-        control = parse_control_parameter(control_type)
-
-        request = MoonvalleyVideoToVideoRequest(
-            control_type=control,
-            video_url=video_url,
-            prompt_text=prompt,
-            inference_params=inference_params,
-        )
-
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=API_VIDEO2VIDEO_ENDPOINT,
-                method=HttpMethod.POST,
-                request_model=MoonvalleyVideoToVideoRequest,
-                response_model=MoonvalleyPromptResponse,
+        task_creation_response = await sync_op(
+            cls,
+            endpoint=ApiEndpoint(path=API_VIDEO2VIDEO_ENDPOINT, method="POST"),
+            response_model=MoonvalleyPromptResponse,
+            data=MoonvalleyVideoToVideoRequest(
+                control_type=parse_control_parameter(control_type),
+                video_url=video_url,
+                prompt_text=prompt,
+                inference_params=inference_params,
             ),
-            request=request,
-            auth_kwargs=auth,
         )
-        task_creation_response = await initial_operation.execute()
         validate_task_creation_response(task_creation_response)
-        task_id = task_creation_response.id
-
-        final_response = await get_response(
-            task_id, auth_kwargs=auth, node_id=cls.hidden.unique_id
-        )
-
-        video = await download_url_to_video_output(final_response.output_url)
-        return comfy_io.NodeOutput(video)
+        final_response = await get_response(cls, task_creation_response.id)
+        return IO.NodeOutput(await download_url_to_video_output(final_response.output_url))
 
 
-class MoonvalleyTxt2VideoNode(comfy_io.ComfyNode):
+class MoonvalleyTxt2VideoNode(IO.ComfyNode):
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="MoonvalleyTxt2VideoNode",
             display_name="Moonvalley Marey Text to Video",
             category="api node/video/Moonvalley Marey",
             description="",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="<synthetic> <scene cut> gopro, bright, contrast, static, overexposed, vignette, "
@@ -669,7 +427,7 @@ class MoonvalleyTxt2VideoNode(comfy_io.ComfyNode):
                     "wobbly, weird, low quality, plastic, stock footage, video camera, boring",
                     tooltip="Negative prompt text",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=[
                         "16:9 (1920 x 1080)",
@@ -682,7 +440,7 @@ class MoonvalleyTxt2VideoNode(comfy_io.ComfyNode):
                     default="16:9 (1920 x 1080)",
                     tooltip="Resolution of the output video",
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "prompt_adherence",
                     default=4.0,
                     min=1.0,
@@ -690,17 +448,17 @@ class MoonvalleyTxt2VideoNode(comfy_io.ComfyNode):
                     step=1.0,
                     tooltip="Guidance scale for generation control",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=9,
                     min=0,
                     max=4294967295,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Random seed value",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "steps",
                     default=33,
                     min=1,
@@ -709,11 +467,11 @@ class MoonvalleyTxt2VideoNode(comfy_io.ComfyNode):
                     tooltip="Inference steps",
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -727,15 +485,11 @@ class MoonvalleyTxt2VideoNode(comfy_io.ComfyNode):
         prompt_adherence: float,
         seed: int,
         steps: int,
-    ) -> comfy_io.NodeOutput:
-        validate_prompts(prompt, negative_prompt, MOONVALLEY_MAREY_MAX_PROMPT_LENGTH)
+    ) -> IO.NodeOutput:
+        validate_string(prompt, min_length=1, max_length=MOONVALLEY_MAREY_MAX_PROMPT_LENGTH)
+        validate_string(negative_prompt, field_name="negative_prompt", max_length=MOONVALLEY_MAREY_MAX_PROMPT_LENGTH)
         width_height = parse_width_height_from_res(resolution)
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-
         inference_params = MoonvalleyTextToVideoInferenceParams(
             negative_prompt=negative_prompt,
             steps=steps,
@@ -745,35 +499,21 @@ class MoonvalleyTxt2VideoNode(comfy_io.ComfyNode):
             width=width_height["width"],
             height=width_height["height"],
         )
-        request = MoonvalleyTextToVideoRequest(
-            prompt_text=prompt, inference_params=inference_params
-        )
 
-        init_op = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=API_TXT2VIDEO_ENDPOINT,
-                method=HttpMethod.POST,
-                request_model=MoonvalleyTextToVideoRequest,
-                response_model=MoonvalleyPromptResponse,
-            ),
-            request=request,
-            auth_kwargs=auth,
+        task_creation_response = await sync_op(
+            cls,
+            endpoint=ApiEndpoint(path=API_TXT2VIDEO_ENDPOINT, method="POST"),
+            response_model=MoonvalleyPromptResponse,
+            data=MoonvalleyTextToVideoRequest(prompt_text=prompt, inference_params=inference_params),
         )
-        task_creation_response = await init_op.execute()
         validate_task_creation_response(task_creation_response)
-        task_id = task_creation_response.id
-
-        final_response = await get_response(
-            task_id, auth_kwargs=auth, node_id=cls.hidden.unique_id
-        )
-
-        video = await download_url_to_video_output(final_response.output_url)
-        return comfy_io.NodeOutput(video)
+        final_response = await get_response(cls, task_creation_response.id)
+        return IO.NodeOutput(await download_url_to_video_output(final_response.output_url))
 
 
 class MoonvalleyExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             MoonvalleyImg2VideoNode,
             MoonvalleyTxt2VideoNode,

comfy_api_nodes/nodes_pika.py

@@ -7,27 +7,23 @@ from __future__ import annotations
 
 from io import BytesIO
 import logging
-from typing import Optional, TypeVar
+from typing import Optional
 
 import torch
 
 from typing_extensions import override
-from comfy_api.latest import ComfyExtension, comfy_io
+from comfy_api.latest import ComfyExtension, IO
 from comfy_api.input_impl.video_types import VideoCodec, VideoContainer, VideoInput
-from comfy_api_nodes.apinode_utils import (
+from comfy_api_nodes.apis import pika_api as pika_defs
+from comfy_api_nodes.util import (
+    validate_string,
     download_url_to_video_output,
     tensor_to_bytesio,
-)
-from comfy_api_nodes.apis import pika_defs
-from comfy_api_nodes.apis.client import (
     ApiEndpoint,
-    EmptyRequest,
-    HttpMethod,
-    PollingOperation,
-    SynchronousOperation,
+    sync_op,
+    poll_op,
 )
 
-R = TypeVar("R")
 
 PATH_PIKADDITIONS = "/proxy/pika/generate/pikadditions"
 PATH_PIKASWAPS = "/proxy/pika/generate/pikaswaps"
@@ -43,67 +39,57 @@ PATH_VIDEO_GET = "/proxy/pika/videos"
 
 
 async def execute_task(
-    initial_operation: SynchronousOperation[R, pika_defs.PikaGenerateResponse],
-    auth_kwargs: Optional[dict[str, str]] = None,
-    node_id: Optional[str] = None,
-) -> comfy_io.NodeOutput:
-    task_id = (await initial_operation.execute()).video_id
-    final_response: pika_defs.PikaVideoResponse = await PollingOperation(
-        poll_endpoint=ApiEndpoint(
-            path=f"{PATH_VIDEO_GET}/{task_id}",
-            method=HttpMethod.GET,
-            request_model=EmptyRequest,
-            response_model=pika_defs.PikaVideoResponse,
-        ),
-        completed_statuses=["finished"],
-        failed_statuses=["failed", "cancelled"],
+    task_id: str,
+    cls: type[IO.ComfyNode],
+) -> IO.NodeOutput:
+    final_response: pika_defs.PikaVideoResponse = await poll_op(
+        cls,
+        ApiEndpoint(path=f"{PATH_VIDEO_GET}/{task_id}"),
+        response_model=pika_defs.PikaVideoResponse,
         status_extractor=lambda response: (response.status.value if response.status else None),
         progress_extractor=lambda response: (response.progress if hasattr(response, "progress") else None),
-        auth_kwargs=auth_kwargs,
-        result_url_extractor=lambda response: (response.url if hasattr(response, "url") else None),
-        node_id=node_id,
         estimated_duration=60,
         max_poll_attempts=240,
-    ).execute()
+    )
     if not final_response.url:
         error_msg = f"Pika task {task_id} succeeded but no video data found in response:\n{final_response}"
         logging.error(error_msg)
         raise Exception(error_msg)
     video_url = final_response.url
     logging.info("Pika task %s succeeded. Video URL: %s", task_id, video_url)
-    return comfy_io.NodeOutput(await download_url_to_video_output(video_url))
+    return IO.NodeOutput(await download_url_to_video_output(video_url))
 
 
-def get_base_inputs_types() -> list[comfy_io.Input]:
+def get_base_inputs_types() -> list[IO.Input]:
     """Get the base required inputs types common to all Pika nodes."""
     return [
-        comfy_io.String.Input("prompt_text", multiline=True),
-        comfy_io.String.Input("negative_prompt", multiline=True),
-        comfy_io.Int.Input("seed", min=0, max=0xFFFFFFFF, control_after_generate=True),
-        comfy_io.Combo.Input("resolution", options=["1080p", "720p"], default="1080p"),
-        comfy_io.Combo.Input("duration", options=[5, 10], default=5),
+        IO.String.Input("prompt_text", multiline=True),
+        IO.String.Input("negative_prompt", multiline=True),
+        IO.Int.Input("seed", min=0, max=0xFFFFFFFF, control_after_generate=True),
+        IO.Combo.Input("resolution", options=["1080p", "720p"], default="1080p"),
+        IO.Combo.Input("duration", options=[5, 10], default=5),
     ]
 
 
-class PikaImageToVideo(comfy_io.ComfyNode):
+class PikaImageToVideo(IO.ComfyNode):
     """Pika 2.2 Image to Video Node."""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="PikaImageToVideoNode2_2",
             display_name="Pika Image to Video",
             description="Sends an image and prompt to the Pika API v2.2 to generate a video.",
             category="api node/video/Pika",
             inputs=[
-                comfy_io.Image.Input("image", tooltip="The image to convert to video"),
+                IO.Image.Input("image", tooltip="The image to convert to video"),
                 *get_base_inputs_types(),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -117,7 +103,7 @@ class PikaImageToVideo(comfy_io.ComfyNode):
         seed: int,
         resolution: str,
         duration: int,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         image_bytes_io = tensor_to_bytesio(image)
         pika_files = {"image": ("image.png", image_bytes_io, "image/png")}
         pika_request_data = pika_defs.PikaBodyGenerate22I2vGenerate22I2vPost(
@@ -127,38 +113,30 @@ class PikaImageToVideo(comfy_io.ComfyNode):
             resolution=resolution,
             duration=duration,
         )
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=PATH_IMAGE_TO_VIDEO,
-                method=HttpMethod.POST,
-                request_model=pika_defs.PikaBodyGenerate22I2vGenerate22I2vPost,
-                response_model=pika_defs.PikaGenerateResponse,
-            ),
-            request=pika_request_data,
+        initial_operation = await sync_op(
+            cls,
+            ApiEndpoint(path=PATH_IMAGE_TO_VIDEO, method="POST"),
+            response_model=pika_defs.PikaGenerateResponse,
+            data=pika_request_data,
             files=pika_files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
-        return await execute_task(initial_operation, auth_kwargs=auth, node_id=cls.hidden.unique_id)
+        return await execute_task(initial_operation.video_id, cls)
 
 
-class PikaTextToVideoNode(comfy_io.ComfyNode):
+class PikaTextToVideoNode(IO.ComfyNode):
     """Pika Text2Video v2.2 Node."""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="PikaTextToVideoNode2_2",
             display_name="Pika Text to Video",
             description="Sends a text prompt to the Pika API v2.2 to generate a video.",
             category="api node/video/Pika",
             inputs=[
                 *get_base_inputs_types(),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "aspect_ratio",
                     step=0.001,
                     min=0.4,
@@ -167,11 +145,11 @@ class PikaTextToVideoNode(comfy_io.ComfyNode):
                     tooltip="Aspect ratio (width / height)",
                 )
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -185,19 +163,12 @@ class PikaTextToVideoNode(comfy_io.ComfyNode):
         resolution: str,
         duration: int,
         aspect_ratio: float,
-    ) -> comfy_io.NodeOutput:
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=PATH_TEXT_TO_VIDEO,
-                method=HttpMethod.POST,
-                request_model=pika_defs.PikaBodyGenerate22T2vGenerate22T2vPost,
-                response_model=pika_defs.PikaGenerateResponse,
-            ),
-            request=pika_defs.PikaBodyGenerate22T2vGenerate22T2vPost(
+    ) -> IO.NodeOutput:
+        initial_operation = await sync_op(
+            cls,
+            ApiEndpoint(path=PATH_TEXT_TO_VIDEO, method="POST"),
+            response_model=pika_defs.PikaGenerateResponse,
+            data=pika_defs.PikaBodyGenerate22T2vGenerate22T2vPost(
                 promptText=prompt_text,
                 negativePrompt=negative_prompt,
                 seed=seed,
@@ -205,30 +176,29 @@ class PikaTextToVideoNode(comfy_io.ComfyNode):
                 duration=duration,
                 aspectRatio=aspect_ratio,
             ),
-            auth_kwargs=auth,
             content_type="application/x-www-form-urlencoded",
         )
-        return await execute_task(initial_operation, auth_kwargs=auth, node_id=cls.hidden.unique_id)
+        return await execute_task(initial_operation.video_id, cls)
 
 
-class PikaScenes(comfy_io.ComfyNode):
+class PikaScenes(IO.ComfyNode):
     """PikaScenes v2.2 Node."""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="PikaScenesV2_2",
             display_name="Pika Scenes (Video Image Composition)",
             description="Combine your images to create a video with the objects in them. Upload multiple images as ingredients and generate a high-quality video that incorporates all of them.",
             category="api node/video/Pika",
             inputs=[
                 *get_base_inputs_types(),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "ingredients_mode",
                     options=["creative", "precise"],
                     default="creative",
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "aspect_ratio",
                     step=0.001,
                     min=0.4,
@@ -236,37 +206,37 @@ class PikaScenes(comfy_io.ComfyNode):
                     default=1.7777777777777777,
                     tooltip="Aspect ratio (width / height)",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image_ingredient_1",
                     optional=True,
                     tooltip="Image that will be used as ingredient to create a video.",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image_ingredient_2",
                     optional=True,
                     tooltip="Image that will be used as ingredient to create a video.",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image_ingredient_3",
                     optional=True,
                     tooltip="Image that will be used as ingredient to create a video.",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image_ingredient_4",
                     optional=True,
                     tooltip="Image that will be used as ingredient to create a video.",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image_ingredient_5",
                     optional=True,
                     tooltip="Image that will be used as ingredient to create a video.",
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -286,7 +256,7 @@ class PikaScenes(comfy_io.ComfyNode):
         image_ingredient_3: Optional[torch.Tensor] = None,
         image_ingredient_4: Optional[torch.Tensor] = None,
         image_ingredient_5: Optional[torch.Tensor] = None,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         all_image_bytes_io = []
         for image in [
             image_ingredient_1,
@@ -312,53 +282,45 @@ class PikaScenes(comfy_io.ComfyNode):
             duration=duration,
             aspectRatio=aspect_ratio,
         )
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=PATH_PIKASCENES,
-                method=HttpMethod.POST,
-                request_model=pika_defs.PikaBodyGenerate22C2vGenerate22PikascenesPost,
-                response_model=pika_defs.PikaGenerateResponse,
-            ),
-            request=pika_request_data,
+        initial_operation = await sync_op(
+            cls,
+            ApiEndpoint(path=PATH_PIKASCENES, method="POST"),
+            response_model=pika_defs.PikaGenerateResponse,
+            data=pika_request_data,
             files=pika_files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
 
-        return await execute_task(initial_operation, auth_kwargs=auth, node_id=cls.hidden.unique_id)
+        return await execute_task(initial_operation.video_id, cls)
 
 
-class PikAdditionsNode(comfy_io.ComfyNode):
+class PikAdditionsNode(IO.ComfyNode):
     """Pika Pikadditions Node. Add an image into a video."""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="Pikadditions",
             display_name="Pikadditions (Video Object Insertion)",
             description="Add any object or image into your video. Upload a video and specify what you'd like to add to create a seamlessly integrated result.",
             category="api node/video/Pika",
             inputs=[
-                comfy_io.Video.Input("video", tooltip="The video to add an image to."),
-                comfy_io.Image.Input("image", tooltip="The image to add to the video."),
-                comfy_io.String.Input("prompt_text", multiline=True),
-                comfy_io.String.Input("negative_prompt", multiline=True),
-                comfy_io.Int.Input(
+                IO.Video.Input("video", tooltip="The video to add an image to."),
+                IO.Image.Input("image", tooltip="The image to add to the video."),
+                IO.String.Input("prompt_text", multiline=True),
+                IO.String.Input("negative_prompt", multiline=True),
+                IO.Int.Input(
                     "seed",
                     min=0,
                     max=0xFFFFFFFF,
                     control_after_generate=True,
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -371,7 +333,7 @@ class PikAdditionsNode(comfy_io.ComfyNode):
         prompt_text: str,
         negative_prompt: str,
         seed: int,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         video_bytes_io = BytesIO()
         video.save_to(video_bytes_io, format=VideoContainer.MP4, codec=VideoCodec.H264)
         video_bytes_io.seek(0)
@@ -386,63 +348,55 @@ class PikAdditionsNode(comfy_io.ComfyNode):
             negativePrompt=negative_prompt,
             seed=seed,
         )
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=PATH_PIKADDITIONS,
-                method=HttpMethod.POST,
-                request_model=pika_defs.PikaBodyGeneratePikadditionsGeneratePikadditionsPost,
-                response_model=pika_defs.PikaGenerateResponse,
-            ),
-            request=pika_request_data,
+        initial_operation = await sync_op(
+            cls,
+            ApiEndpoint(path=PATH_PIKADDITIONS, method="POST"),
+            response_model=pika_defs.PikaGenerateResponse,
+            data=pika_request_data,
             files=pika_files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
 
-        return await execute_task(initial_operation, auth_kwargs=auth, node_id=cls.hidden.unique_id)
+        return await execute_task(initial_operation.video_id, cls)
 
 
-class PikaSwapsNode(comfy_io.ComfyNode):
+class PikaSwapsNode(IO.ComfyNode):
     """Pika Pikaswaps Node."""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="Pikaswaps",
             display_name="Pika Swaps (Video Object Replacement)",
             description="Swap out any object or region of your video with a new image or object. Define areas to replace either with a mask or coordinates.",
             category="api node/video/Pika",
             inputs=[
-                comfy_io.Video.Input("video", tooltip="The video to swap an object in."),
-                comfy_io.Image.Input(
+                IO.Video.Input("video", tooltip="The video to swap an object in."),
+                IO.Image.Input(
                     "image",
                     tooltip="The image used to replace the masked object in the video.",
                     optional=True,
                 ),
-                comfy_io.Mask.Input(
+                IO.Mask.Input(
                     "mask",
                     tooltip="Use the mask to define areas in the video to replace.",
                     optional=True,
                 ),
-                comfy_io.String.Input("prompt_text", multiline=True, optional=True),
-                comfy_io.String.Input("negative_prompt", multiline=True, optional=True),
-                comfy_io.Int.Input("seed", min=0, max=0xFFFFFFFF, control_after_generate=True, optional=True),
-                comfy_io.String.Input(
+                IO.String.Input("prompt_text", multiline=True, optional=True),
+                IO.String.Input("negative_prompt", multiline=True, optional=True),
+                IO.Int.Input("seed", min=0, max=0xFFFFFFFF, control_after_generate=True, optional=True),
+                IO.String.Input(
                     "region_to_modify",
                     multiline=True,
                     optional=True,
                     tooltip="Plaintext description of the object / region to modify.",
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -457,7 +411,7 @@ class PikaSwapsNode(comfy_io.ComfyNode):
         negative_prompt: str = "",
         seed: int = 0,
         region_to_modify: str = "",
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         video_bytes_io = BytesIO()
         video.save_to(video_bytes_io, format=VideoContainer.MP4, codec=VideoCodec.H264)
         video_bytes_io.seek(0)
@@ -475,49 +429,41 @@ class PikaSwapsNode(comfy_io.ComfyNode):
             seed=seed,
             modifyRegionRoi=region_to_modify if region_to_modify else None,
         )
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=PATH_PIKASWAPS,
-                method=HttpMethod.POST,
-                request_model=pika_defs.PikaBodyGeneratePikaswapsGeneratePikaswapsPost,
-                response_model=pika_defs.PikaGenerateResponse,
-            ),
-            request=pika_request_data,
+        initial_operation = await sync_op(
+            cls,
+            ApiEndpoint(path=PATH_PIKASWAPS, method="POST"),
+            response_model=pika_defs.PikaGenerateResponse,
+            data=pika_request_data,
             files=pika_files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
-        return await execute_task(initial_operation, auth_kwargs=auth, node_id=cls.hidden.unique_id)
+        return await execute_task(initial_operation.video_id, cls)
 
 
-class PikaffectsNode(comfy_io.ComfyNode):
+class PikaffectsNode(IO.ComfyNode):
     """Pika Pikaffects Node."""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="Pikaffects",
             display_name="Pikaffects (Video Effects)",
             description="Generate a video with a specific Pikaffect. Supported Pikaffects: Cake-ify, Crumble, Crush, Decapitate, Deflate, Dissolve, Explode, Eye-pop, Inflate, Levitate, Melt, Peel, Poke, Squish, Ta-da, Tear",
             category="api node/video/Pika",
             inputs=[
-                comfy_io.Image.Input("image", tooltip="The reference image to apply the Pikaffect to."),
-                comfy_io.Combo.Input(
+                IO.Image.Input("image", tooltip="The reference image to apply the Pikaffect to."),
+                IO.Combo.Input(
                     "pikaffect", options=pika_defs.Pikaffect, default="Cake-ify"
                 ),
-                comfy_io.String.Input("prompt_text", multiline=True),
-                comfy_io.String.Input("negative_prompt", multiline=True),
-                comfy_io.Int.Input("seed", min=0, max=0xFFFFFFFF, control_after_generate=True),
+                IO.String.Input("prompt_text", multiline=True),
+                IO.String.Input("negative_prompt", multiline=True),
+                IO.Int.Input("seed", min=0, max=0xFFFFFFFF, control_after_generate=True),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -530,19 +476,12 @@ class PikaffectsNode(comfy_io.ComfyNode):
         prompt_text: str,
         negative_prompt: str,
         seed: int,
-    ) -> comfy_io.NodeOutput:
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=PATH_PIKAFFECTS,
-                method=HttpMethod.POST,
-                request_model=pika_defs.PikaBodyGeneratePikaffectsGeneratePikaffectsPost,
-                response_model=pika_defs.PikaGenerateResponse,
-            ),
-            request=pika_defs.PikaBodyGeneratePikaffectsGeneratePikaffectsPost(
+    ) -> IO.NodeOutput:
+        initial_operation = await sync_op(
+            cls,
+            ApiEndpoint(path=PATH_PIKAFFECTS, method="POST"),
+            response_model=pika_defs.PikaGenerateResponse,
+            data=pika_defs.PikaBodyGeneratePikaffectsGeneratePikaffectsPost(
                 pikaffect=pikaffect,
                 promptText=prompt_text,
                 negativePrompt=negative_prompt,
@@ -550,31 +489,30 @@ class PikaffectsNode(comfy_io.ComfyNode):
             ),
             files={"image": ("image.png", tensor_to_bytesio(image), "image/png")},
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
-        return await execute_task(initial_operation, auth_kwargs=auth, node_id=cls.hidden.unique_id)
+        return await execute_task(initial_operation.video_id, cls)
 
 
-class PikaStartEndFrameNode(comfy_io.ComfyNode):
+class PikaStartEndFrameNode(IO.ComfyNode):
     """PikaFrames v2.2 Node."""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="PikaStartEndFrameNode2_2",
             display_name="Pika Start and End Frame to Video",
             description="Generate a video by combining your first and last frame. Upload two images to define the start and end points, and let the AI create a smooth transition between them.",
             category="api node/video/Pika",
             inputs=[
-                comfy_io.Image.Input("image_start", tooltip="The first image to combine."),
-                comfy_io.Image.Input("image_end", tooltip="The last image to combine."),
+                IO.Image.Input("image_start", tooltip="The first image to combine."),
+                IO.Image.Input("image_end", tooltip="The last image to combine."),
                 *get_base_inputs_types(),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -589,23 +527,17 @@ class PikaStartEndFrameNode(comfy_io.ComfyNode):
         seed: int,
         resolution: str,
         duration: int,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
+        validate_string(prompt_text, field_name="prompt_text", min_length=1)
         pika_files = [
             ("keyFrames", ("image_start.png", tensor_to_bytesio(image_start), "image/png")),
             ("keyFrames", ("image_end.png", tensor_to_bytesio(image_end), "image/png")),
         ]
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=PATH_PIKAFRAMES,
-                method=HttpMethod.POST,
-                request_model=pika_defs.PikaBodyGenerate22KeyframeGenerate22PikaframesPost,
-                response_model=pika_defs.PikaGenerateResponse,
-            ),
-            request=pika_defs.PikaBodyGenerate22KeyframeGenerate22PikaframesPost(
+        initial_operation = await sync_op(
+            cls,
+            ApiEndpoint(path=PATH_PIKAFRAMES, method="POST"),
+            response_model=pika_defs.PikaGenerateResponse,
+            data=pika_defs.PikaBodyGenerate22KeyframeGenerate22PikaframesPost(
                 promptText=prompt_text,
                 negativePrompt=negative_prompt,
                 seed=seed,
@@ -614,14 +546,13 @@ class PikaStartEndFrameNode(comfy_io.ComfyNode):
             ),
             files=pika_files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
-        return await execute_task(initial_operation, auth_kwargs=auth, node_id=cls.hidden.unique_id)
+        return await execute_task(initial_operation.video_id, cls)
 
 
 class PikaApiNodesExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             PikaImageToVideo,
             PikaTextToVideoNode,

comfy_api_nodes/nodes_pixverse.py

@@ -1,7 +1,6 @@
-from inspect import cleandoc
-from typing import Optional
+import torch
 from typing_extensions import override
-from io import BytesIO
+from comfy_api.latest import IO, ComfyExtension
 from comfy_api_nodes.apis.pixverse_api import (
     PixverseTextVideoRequest,
     PixverseImageVideoRequest,
@@ -17,125 +16,91 @@ from comfy_api_nodes.apis.pixverse_api import (
     PixverseIO,
     pixverse_templates,
 )
-from comfy_api_nodes.apis.client import (
+from comfy_api_nodes.util import (
     ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-    EmptyRequest,
-)
-from comfy_api_nodes.apinode_utils import (
+    download_url_to_video_output,
+    poll_op,
+    sync_op,
     tensor_to_bytesio,
     validate_string,
 )
-from comfy_api.input_impl import VideoFromFile
-from comfy_api.latest import ComfyExtension, io as comfy_io
-
-import torch
-import aiohttp
-
 
 AVERAGE_DURATION_T2V = 32
 AVERAGE_DURATION_I2V = 30
 AVERAGE_DURATION_T2T = 52
 
 
-def get_video_url_from_response(
-    response: PixverseGenerationStatusResponse,
-) -> Optional[str]:
-    if response.Resp is None or response.Resp.url is None:
-        return None
-    return str(response.Resp.url)
-
-
-async def upload_image_to_pixverse(image: torch.Tensor, auth_kwargs=None):
-    # first, upload image to Pixverse and get image id to use in actual generation call
-    files = {"image": tensor_to_bytesio(image)}
-    operation = SynchronousOperation(
-        endpoint=ApiEndpoint(
-            path="/proxy/pixverse/image/upload",
-            method=HttpMethod.POST,
-            request_model=EmptyRequest,
-            response_model=PixverseImageUploadResponse,
-        ),
-        request=EmptyRequest(),
-        files=files,
+async def upload_image_to_pixverse(cls: type[IO.ComfyNode], image: torch.Tensor):
+    response_upload = await sync_op(
+        cls,
+        ApiEndpoint(path="/proxy/pixverse/image/upload", method="POST"),
+        response_model=PixverseImageUploadResponse,
+        files={"image": tensor_to_bytesio(image)},
         content_type="multipart/form-data",
-        auth_kwargs=auth_kwargs,
     )
-    response_upload: PixverseImageUploadResponse = await operation.execute()
-
     if response_upload.Resp is None:
-        raise Exception(
-            f"PixVerse image upload request failed: '{response_upload.ErrMsg}'"
-        )
-
+        raise Exception(f"PixVerse image upload request failed: '{response_upload.ErrMsg}'")
     return response_upload.Resp.img_id
 
 
-class PixverseTemplateNode(comfy_io.ComfyNode):
+class PixverseTemplateNode(IO.ComfyNode):
     """
     Select template for PixVerse Video generation.
     """
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="PixverseTemplateNode",
             display_name="PixVerse Template",
             category="api node/video/PixVerse",
             inputs=[
-                comfy_io.Combo.Input("template", options=list(pixverse_templates.keys())),
+                IO.Combo.Input("template", options=list(pixverse_templates.keys())),
             ],
-            outputs=[comfy_io.Custom(PixverseIO.TEMPLATE).Output(display_name="pixverse_template")],
+            outputs=[IO.Custom(PixverseIO.TEMPLATE).Output(display_name="pixverse_template")],
         )
 
     @classmethod
-    def execute(cls, template: str) -> comfy_io.NodeOutput:
+    def execute(cls, template: str) -> IO.NodeOutput:
         template_id = pixverse_templates.get(template, None)
         if template_id is None:
             raise Exception(f"Template '{template}' is not recognized.")
-        # just return the integer
-        return comfy_io.NodeOutput(template_id)
+        return IO.NodeOutput(template_id)
 
 
-class PixverseTextToVideoNode(comfy_io.ComfyNode):
-    """
-    Generates videos based on prompt and output_size.
-    """
-
+class PixverseTextToVideoNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="PixverseTextToVideoNode",
             display_name="PixVerse Text to Video",
             category="api node/video/PixVerse",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates videos based on prompt and output_size.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the video generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=PixverseAspectRatio,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "quality",
                     options=PixverseQuality,
                     default=PixverseQuality.res_540p,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration_seconds",
                     options=PixverseDuration,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "motion_mode",
                     options=PixverseMotionMode,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -143,24 +108,24 @@ class PixverseTextToVideoNode(comfy_io.ComfyNode):
                     control_after_generate=True,
                     tooltip="Seed for video generation.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     default="",
                     multiline=True,
                     tooltip="An optional text description of undesired elements on an image.",
                     optional=True,
                 ),
-                comfy_io.Custom(PixverseIO.TEMPLATE).Input(
+                IO.Custom(PixverseIO.TEMPLATE).Input(
                     "pixverse_template",
                     tooltip="An optional template to influence style of generation, created by the PixVerse Template node.",
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -176,8 +141,8 @@ class PixverseTextToVideoNode(comfy_io.ComfyNode):
         seed,
         negative_prompt: str = None,
         pixverse_template: int = None,
-    ) -> comfy_io.NodeOutput:
-        validate_string(prompt, strip_whitespace=False)
+    ) -> IO.NodeOutput:
+        validate_string(prompt, strip_whitespace=False, min_length=1)
         # 1080p is limited to 5 seconds duration
         # only normal motion_mode supported for 1080p or for non-5 second duration
         if quality == PixverseQuality.res_1080p:
@@ -186,18 +151,11 @@ class PixverseTextToVideoNode(comfy_io.ComfyNode):
         elif duration_seconds != PixverseDuration.dur_5:
             motion_mode = PixverseMotionMode.normal
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/pixverse/video/text/generate",
-                method=HttpMethod.POST,
-                request_model=PixverseTextVideoRequest,
-                response_model=PixverseVideoResponse,
-            ),
-            request=PixverseTextVideoRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/pixverse/video/text/generate", method="POST"),
+            response_model=PixverseVideoResponse,
+            data=PixverseTextVideoRequest(
                 prompt=prompt,
                 aspect_ratio=aspect_ratio,
                 quality=quality,
@@ -207,20 +165,14 @@ class PixverseTextToVideoNode(comfy_io.ComfyNode):
                 template_id=pixverse_template,
                 seed=seed,
             ),
-            auth_kwargs=auth,
         )
-        response_api = await operation.execute()
-
         if response_api.Resp is None:
             raise Exception(f"PixVerse request failed: '{response_api.ErrMsg}'")
 
-        operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/pixverse/video/result/{response_api.Resp.video_id}",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=PixverseGenerationStatusResponse,
-            ),
+        response_poll = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/pixverse/video/result/{response_api.Resp.video_id}"),
+            response_model=PixverseGenerationStatusResponse,
             completed_statuses=[PixverseStatus.successful],
             failed_statuses=[
                 PixverseStatus.contents_moderation,
@@ -228,52 +180,41 @@ class PixverseTextToVideoNode(comfy_io.ComfyNode):
                 PixverseStatus.deleted,
             ],
             status_extractor=lambda x: x.Resp.status,
-            auth_kwargs=auth,
-            node_id=cls.hidden.unique_id,
-            result_url_extractor=get_video_url_from_response,
             estimated_duration=AVERAGE_DURATION_T2V,
         )
-        response_poll = await operation.execute()
-
-        async with aiohttp.ClientSession() as session:
-            async with session.get(response_poll.Resp.url) as vid_response:
-                return comfy_io.NodeOutput(VideoFromFile(BytesIO(await vid_response.content.read())))
+        return IO.NodeOutput(await download_url_to_video_output(response_poll.Resp.url))
 
 
-class PixverseImageToVideoNode(comfy_io.ComfyNode):
-    """
-    Generates videos based on prompt and output_size.
-    """
-
+class PixverseImageToVideoNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="PixverseImageToVideoNode",
             display_name="PixVerse Image to Video",
             category="api node/video/PixVerse",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates videos based on prompt and output_size.",
             inputs=[
-                comfy_io.Image.Input("image"),
-                comfy_io.String.Input(
+                IO.Image.Input("image"),
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the video generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "quality",
                     options=PixverseQuality,
                     default=PixverseQuality.res_540p,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration_seconds",
                     options=PixverseDuration,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "motion_mode",
                     options=PixverseMotionMode,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -281,24 +222,24 @@ class PixverseImageToVideoNode(comfy_io.ComfyNode):
                     control_after_generate=True,
                     tooltip="Seed for video generation.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     default="",
                     multiline=True,
                     tooltip="An optional text description of undesired elements on an image.",
                     optional=True,
                 ),
-                comfy_io.Custom(PixverseIO.TEMPLATE).Input(
+                IO.Custom(PixverseIO.TEMPLATE).Input(
                     "pixverse_template",
                     tooltip="An optional template to influence style of generation, created by the PixVerse Template node.",
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -314,13 +255,9 @@ class PixverseImageToVideoNode(comfy_io.ComfyNode):
         seed,
         negative_prompt: str = None,
         pixverse_template: int = None,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=False)
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        img_id = await upload_image_to_pixverse(image, auth_kwargs=auth)
+        img_id = await upload_image_to_pixverse(cls, image)
 
         # 1080p is limited to 5 seconds duration
         # only normal motion_mode supported for 1080p or for non-5 second duration
@@ -330,14 +267,11 @@ class PixverseImageToVideoNode(comfy_io.ComfyNode):
         elif duration_seconds != PixverseDuration.dur_5:
             motion_mode = PixverseMotionMode.normal
 
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/pixverse/video/img/generate",
-                method=HttpMethod.POST,
-                request_model=PixverseImageVideoRequest,
-                response_model=PixverseVideoResponse,
-            ),
-            request=PixverseImageVideoRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/pixverse/video/img/generate", method="POST"),
+            response_model=PixverseVideoResponse,
+            data=PixverseImageVideoRequest(
                 img_id=img_id,
                 prompt=prompt,
                 quality=quality,
@@ -347,20 +281,15 @@ class PixverseImageToVideoNode(comfy_io.ComfyNode):
                 template_id=pixverse_template,
                 seed=seed,
             ),
-            auth_kwargs=auth,
         )
-        response_api = await operation.execute()
 
         if response_api.Resp is None:
             raise Exception(f"PixVerse request failed: '{response_api.ErrMsg}'")
 
-        operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/pixverse/video/result/{response_api.Resp.video_id}",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=PixverseGenerationStatusResponse,
-            ),
+        response_poll = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/pixverse/video/result/{response_api.Resp.video_id}"),
+            response_model=PixverseGenerationStatusResponse,
             completed_statuses=[PixverseStatus.successful],
             failed_statuses=[
                 PixverseStatus.contents_moderation,
@@ -368,53 +297,42 @@ class PixverseImageToVideoNode(comfy_io.ComfyNode):
                 PixverseStatus.deleted,
             ],
             status_extractor=lambda x: x.Resp.status,
-            auth_kwargs=auth,
-            node_id=cls.hidden.unique_id,
-            result_url_extractor=get_video_url_from_response,
             estimated_duration=AVERAGE_DURATION_I2V,
         )
-        response_poll = await operation.execute()
-
-        async with aiohttp.ClientSession() as session:
-            async with session.get(response_poll.Resp.url) as vid_response:
-                return comfy_io.NodeOutput(VideoFromFile(BytesIO(await vid_response.content.read())))
+        return IO.NodeOutput(await download_url_to_video_output(response_poll.Resp.url))
 
 
-class PixverseTransitionVideoNode(comfy_io.ComfyNode):
-    """
-    Generates videos based on prompt and output_size.
-    """
-
+class PixverseTransitionVideoNode(IO.ComfyNode):
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="PixverseTransitionVideoNode",
             display_name="PixVerse Transition Video",
             category="api node/video/PixVerse",
-            description=cleandoc(cls.__doc__ or ""),
+            description="Generates videos based on prompt and output_size.",
             inputs=[
-                comfy_io.Image.Input("first_frame"),
-                comfy_io.Image.Input("last_frame"),
-                comfy_io.String.Input(
+                IO.Image.Input("first_frame"),
+                IO.Image.Input("last_frame"),
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt for the video generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "quality",
                     options=PixverseQuality,
                     default=PixverseQuality.res_540p,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration_seconds",
                     options=PixverseDuration,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "motion_mode",
                     options=PixverseMotionMode,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
@@ -422,7 +340,7 @@ class PixverseTransitionVideoNode(comfy_io.ComfyNode):
                     control_after_generate=True,
                     tooltip="Seed for video generation.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     default="",
                     multiline=True,
@@ -430,11 +348,11 @@ class PixverseTransitionVideoNode(comfy_io.ComfyNode):
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.Video.Output()],
+            outputs=[IO.Video.Output()],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -450,14 +368,10 @@ class PixverseTransitionVideoNode(comfy_io.ComfyNode):
         motion_mode: str,
         seed,
         negative_prompt: str = None,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=False)
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        first_frame_id = await upload_image_to_pixverse(first_frame, auth_kwargs=auth)
-        last_frame_id = await upload_image_to_pixverse(last_frame, auth_kwargs=auth)
+        first_frame_id = await upload_image_to_pixverse(cls, first_frame)
+        last_frame_id = await upload_image_to_pixverse(cls, last_frame)
 
         # 1080p is limited to 5 seconds duration
         # only normal motion_mode supported for 1080p or for non-5 second duration
@@ -467,14 +381,11 @@ class PixverseTransitionVideoNode(comfy_io.ComfyNode):
         elif duration_seconds != PixverseDuration.dur_5:
             motion_mode = PixverseMotionMode.normal
 
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/pixverse/video/transition/generate",
-                method=HttpMethod.POST,
-                request_model=PixverseTransitionVideoRequest,
-                response_model=PixverseVideoResponse,
-            ),
-            request=PixverseTransitionVideoRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/pixverse/video/transition/generate", method="POST"),
+            response_model=PixverseVideoResponse,
+            data=PixverseTransitionVideoRequest(
                 first_frame_img=first_frame_id,
                 last_frame_img=last_frame_id,
                 prompt=prompt,
@@ -484,20 +395,15 @@ class PixverseTransitionVideoNode(comfy_io.ComfyNode):
                 negative_prompt=negative_prompt if negative_prompt else None,
                 seed=seed,
             ),
-            auth_kwargs=auth,
         )
-        response_api = await operation.execute()
 
         if response_api.Resp is None:
             raise Exception(f"PixVerse request failed: '{response_api.ErrMsg}'")
 
-        operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/pixverse/video/result/{response_api.Resp.video_id}",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=PixverseGenerationStatusResponse,
-            ),
+        response_poll = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/pixverse/video/result/{response_api.Resp.video_id}"),
+            response_model=PixverseGenerationStatusResponse,
             completed_statuses=[PixverseStatus.successful],
             failed_statuses=[
                 PixverseStatus.contents_moderation,
@@ -505,21 +411,14 @@ class PixverseTransitionVideoNode(comfy_io.ComfyNode):
                 PixverseStatus.deleted,
             ],
             status_extractor=lambda x: x.Resp.status,
-            auth_kwargs=auth,
-            node_id=cls.hidden.unique_id,
-            result_url_extractor=get_video_url_from_response,
             estimated_duration=AVERAGE_DURATION_T2V,
         )
-        response_poll = await operation.execute()
-
-        async with aiohttp.ClientSession() as session:
-            async with session.get(response_poll.Resp.url) as vid_response:
-                return comfy_io.NodeOutput(VideoFromFile(BytesIO(await vid_response.content.read())))
+        return IO.NodeOutput(await download_url_to_video_output(response_poll.Resp.url))
 
 
 class PixVerseExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             PixverseTextToVideoNode,
             PixverseImageToVideoNode,

comfy_api_nodes/nodes_rodin.py

@@ -32,20 +32,20 @@ from comfy_api_nodes.apis.client import (
     SynchronousOperation,
     PollingOperation,
 )
-from comfy_api.latest import ComfyExtension, io as comfy_io
+from comfy_api.latest import ComfyExtension, IO
 
 
 COMMON_PARAMETERS = [
-    comfy_io.Int.Input(
+    IO.Int.Input(
         "Seed",
         default=0,
         min=0,
         max=65535,
-        display_mode=comfy_io.NumberDisplay.number,
+        display_mode=IO.NumberDisplay.number,
         optional=True,
     ),
-    comfy_io.Combo.Input("Material_Type", options=["PBR", "Shaded"], default="PBR", optional=True),
-    comfy_io.Combo.Input(
+    IO.Combo.Input("Material_Type", options=["PBR", "Shaded"], default="PBR", optional=True),
+    IO.Combo.Input(
         "Polygon_count",
         options=["4K-Quad", "8K-Quad", "18K-Quad", "50K-Quad", "200K-Triangle"],
         default="18K-Quad",
@@ -225,21 +225,20 @@ async def get_rodin_download_list(uuid, auth_kwargs: Optional[dict[str, str]] =
 
 
 async def download_files(url_list, task_uuid):
-    save_path = os.path.join(comfy_paths.get_output_directory(), f"Rodin3D_{task_uuid}")
+    result_folder_name = f"Rodin3D_{task_uuid}"
+    save_path = os.path.join(comfy_paths.get_output_directory(), result_folder_name)
     os.makedirs(save_path, exist_ok=True)
     model_file_path = None
     async with aiohttp.ClientSession() as session:
         for i in url_list.list:
-            url = i.url
-            file_name = i.name
-            file_path = os.path.join(save_path, file_name)
+            file_path = os.path.join(save_path, i.name)
             if file_path.endswith(".glb"):
-                model_file_path = file_path
+                model_file_path = os.path.join(result_folder_name, i.name)
             logging.info("[ Rodin3D API - download_files ] Downloading file: %s", file_path)
             max_retries = 5
             for attempt in range(max_retries):
                 try:
-                    async with session.get(url) as resp:
+                    async with session.get(i.url) as resp:
                         resp.raise_for_status()
                         with open(file_path, "wb") as f:
                             async for chunk in resp.content.iter_chunked(32 * 1024):
@@ -259,24 +258,24 @@ async def download_files(url_list, task_uuid):
     return model_file_path
 
 
-class Rodin3D_Regular(comfy_io.ComfyNode):
+class Rodin3D_Regular(IO.ComfyNode):
     """Generate 3D Assets using Rodin API"""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="Rodin3D_Regular",
             display_name="Rodin 3D Generate - Regular Generate",
             category="api node/3d/Rodin",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Image.Input("Images"),
+                IO.Image.Input("Images"),
                 *COMMON_PARAMETERS,
             ],
-            outputs=[comfy_io.String.Output(display_name="3D Model Path")],
+            outputs=[IO.String.Output(display_name="3D Model Path")],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
             ],
             is_api_node=True,
         )
@@ -288,7 +287,7 @@ class Rodin3D_Regular(comfy_io.ComfyNode):
         Seed,
         Material_Type,
         Polygon_count,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         tier = "Regular"
         num_images = Images.shape[0]
         m_images = []
@@ -312,27 +311,27 @@ class Rodin3D_Regular(comfy_io.ComfyNode):
         download_list = await get_rodin_download_list(task_uuid, auth_kwargs=auth)
         model = await download_files(download_list, task_uuid)
 
-        return comfy_io.NodeOutput(model)
+        return IO.NodeOutput(model)
 
 
-class Rodin3D_Detail(comfy_io.ComfyNode):
+class Rodin3D_Detail(IO.ComfyNode):
     """Generate 3D Assets using Rodin API"""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="Rodin3D_Detail",
             display_name="Rodin 3D Generate - Detail Generate",
             category="api node/3d/Rodin",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Image.Input("Images"),
+                IO.Image.Input("Images"),
                 *COMMON_PARAMETERS,
             ],
-            outputs=[comfy_io.String.Output(display_name="3D Model Path")],
+            outputs=[IO.String.Output(display_name="3D Model Path")],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
             ],
             is_api_node=True,
         )
@@ -344,7 +343,7 @@ class Rodin3D_Detail(comfy_io.ComfyNode):
         Seed,
         Material_Type,
         Polygon_count,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         tier = "Detail"
         num_images = Images.shape[0]
         m_images = []
@@ -368,27 +367,27 @@ class Rodin3D_Detail(comfy_io.ComfyNode):
         download_list = await get_rodin_download_list(task_uuid, auth_kwargs=auth)
         model = await download_files(download_list, task_uuid)
 
-        return comfy_io.NodeOutput(model)
+        return IO.NodeOutput(model)
 
 
-class Rodin3D_Smooth(comfy_io.ComfyNode):
+class Rodin3D_Smooth(IO.ComfyNode):
     """Generate 3D Assets using Rodin API"""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="Rodin3D_Smooth",
             display_name="Rodin 3D Generate - Smooth Generate",
             category="api node/3d/Rodin",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Image.Input("Images"),
+                IO.Image.Input("Images"),
                 *COMMON_PARAMETERS,
             ],
-            outputs=[comfy_io.String.Output(display_name="3D Model Path")],
+            outputs=[IO.String.Output(display_name="3D Model Path")],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
             ],
             is_api_node=True,
         )
@@ -400,7 +399,7 @@ class Rodin3D_Smooth(comfy_io.ComfyNode):
         Seed,
         Material_Type,
         Polygon_count,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         tier = "Smooth"
         num_images = Images.shape[0]
         m_images = []
@@ -424,34 +423,34 @@ class Rodin3D_Smooth(comfy_io.ComfyNode):
         download_list = await get_rodin_download_list(task_uuid, auth_kwargs=auth)
         model = await download_files(download_list, task_uuid)
 
-        return comfy_io.NodeOutput(model)
+        return IO.NodeOutput(model)
 
 
-class Rodin3D_Sketch(comfy_io.ComfyNode):
+class Rodin3D_Sketch(IO.ComfyNode):
     """Generate 3D Assets using Rodin API"""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="Rodin3D_Sketch",
             display_name="Rodin 3D Generate - Sketch Generate",
             category="api node/3d/Rodin",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Image.Input("Images"),
-                comfy_io.Int.Input(
+                IO.Image.Input("Images"),
+                IO.Int.Input(
                     "Seed",
                     default=0,
                     min=0,
                     max=65535,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     optional=True,
                 ),
             ],
-            outputs=[comfy_io.String.Output(display_name="3D Model Path")],
+            outputs=[IO.String.Output(display_name="3D Model Path")],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
             ],
             is_api_node=True,
         )
@@ -461,7 +460,7 @@ class Rodin3D_Sketch(comfy_io.ComfyNode):
         cls,
         Images,
         Seed,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         tier = "Sketch"
         num_images = Images.shape[0]
         m_images = []
@@ -487,42 +486,42 @@ class Rodin3D_Sketch(comfy_io.ComfyNode):
         download_list = await get_rodin_download_list(task_uuid, auth_kwargs=auth)
         model = await download_files(download_list, task_uuid)
 
-        return comfy_io.NodeOutput(model)
+        return IO.NodeOutput(model)
 
 
-class Rodin3D_Gen2(comfy_io.ComfyNode):
+class Rodin3D_Gen2(IO.ComfyNode):
     """Generate 3D Assets using Rodin API"""
 
     @classmethod
-    def define_schema(cls) -> comfy_io.Schema:
-        return comfy_io.Schema(
+    def define_schema(cls) -> IO.Schema:
+        return IO.Schema(
             node_id="Rodin3D_Gen2",
             display_name="Rodin 3D Generate - Gen-2 Generate",
             category="api node/3d/Rodin",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Image.Input("Images"),
-                comfy_io.Int.Input(
+                IO.Image.Input("Images"),
+                IO.Int.Input(
                     "Seed",
                     default=0,
                     min=0,
                     max=65535,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     optional=True,
                 ),
-                comfy_io.Combo.Input("Material_Type", options=["PBR", "Shaded"], default="PBR", optional=True),
-                comfy_io.Combo.Input(
+                IO.Combo.Input("Material_Type", options=["PBR", "Shaded"], default="PBR", optional=True),
+                IO.Combo.Input(
                     "Polygon_count",
                     options=["4K-Quad", "8K-Quad", "18K-Quad", "50K-Quad", "2K-Triangle", "20K-Triangle", "150K-Triangle", "500K-Triangle"],
                     default="500K-Triangle",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input("TAPose", default=False),
+                IO.Boolean.Input("TAPose", default=False),
             ],
-            outputs=[comfy_io.String.Output(display_name="3D Model Path")],
+            outputs=[IO.String.Output(display_name="3D Model Path")],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
             ],
             is_api_node=True,
         )
@@ -535,7 +534,7 @@ class Rodin3D_Gen2(comfy_io.ComfyNode):
         Material_Type,
         Polygon_count,
         TAPose,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         tier = "Gen-2"
         num_images = Images.shape[0]
         m_images = []
@@ -560,12 +559,12 @@ class Rodin3D_Gen2(comfy_io.ComfyNode):
         download_list = await get_rodin_download_list(task_uuid, auth_kwargs=auth)
         model = await download_files(download_list, task_uuid)
 
-        return comfy_io.NodeOutput(model)
+        return IO.NodeOutput(model)
 
 
 class Rodin3DExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             Rodin3D_Regular,
             Rodin3D_Detail,

comfy_api_nodes/nodes_runway.py

@@ -11,7 +11,7 @@ User Guides:
 
 """
 
-from typing import Union, Optional, Any
+from typing import Union, Optional
 from typing_extensions import override
 from enum import Enum
 
@@ -21,7 +21,6 @@ from comfy_api_nodes.apis import (
     RunwayImageToVideoRequest,
     RunwayImageToVideoResponse,
     RunwayTaskStatusResponse as TaskStatusResponse,
-    RunwayTaskStatusEnum as TaskStatus,
     RunwayModelEnum as Model,
     RunwayDurationEnum as Duration,
     RunwayAspectRatioEnum as AspectRatio,
@@ -33,23 +32,20 @@ from comfy_api_nodes.apis import (
     ReferenceImage,
     RunwayTextToImageAspectRatioEnum,
 )
-from comfy_api_nodes.apis.client import (
-    ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-    EmptyRequest,
-)
-from comfy_api_nodes.apinode_utils import (
-    upload_images_to_comfyapi,
-    download_url_to_video_output,
+from comfy_api_nodes.util import (
     image_tensor_pair_to_batch,
     validate_string,
+    validate_image_dimensions,
+    validate_image_aspect_ratio,
+    upload_images_to_comfyapi,
+    download_url_to_video_output,
     download_url_to_image_tensor,
+    ApiEndpoint,
+    sync_op,
+    poll_op,
 )
 from comfy_api.input_impl import VideoFromFile
-from comfy_api.latest import ComfyExtension, io as comfy_io
-from comfy_api_nodes.util.validation_utils import validate_image_dimensions, validate_image_aspect_ratio
+from comfy_api.latest import ComfyExtension, IO
 
 PATH_IMAGE_TO_VIDEO = "/proxy/runway/image_to_video"
 PATH_TEXT_TO_IMAGE = "/proxy/runway/text_to_image"
@@ -91,31 +87,6 @@ def get_video_url_from_task_status(response: TaskStatusResponse) -> Union[str, N
     return None
 
 
-async def poll_until_finished(
-    auth_kwargs: dict[str, str],
-    api_endpoint: ApiEndpoint[Any, TaskStatusResponse],
-    estimated_duration: Optional[int] = None,
-    node_id: Optional[str] = None,
-) -> TaskStatusResponse:
-    """Polls the Runway API endpoint until the task reaches a terminal state, then returns the response."""
-    return await PollingOperation(
-        poll_endpoint=api_endpoint,
-        completed_statuses=[
-            TaskStatus.SUCCEEDED.value,
-        ],
-        failed_statuses=[
-            TaskStatus.FAILED.value,
-            TaskStatus.CANCELLED.value,
-        ],
-        status_extractor=lambda response: response.status.value,
-        auth_kwargs=auth_kwargs,
-        result_url_extractor=get_video_url_from_task_status,
-        estimated_duration=estimated_duration,
-        node_id=node_id,
-        progress_extractor=extract_progress_from_task_status,
-    ).execute()
-
-
 def extract_progress_from_task_status(
     response: TaskStatusResponse,
 ) -> Union[float, None]:
@@ -132,42 +103,32 @@ def get_image_url_from_task_status(response: TaskStatusResponse) -> Union[str, N
 
 
 async def get_response(
-    task_id: str, auth_kwargs: dict[str, str], node_id: Optional[str] = None, estimated_duration: Optional[int] = None
+    cls: type[IO.ComfyNode], task_id: str, estimated_duration: Optional[int] = None
 ) -> TaskStatusResponse:
     """Poll the task status until it is finished then get the response."""
-    return await poll_until_finished(
-        auth_kwargs,
-        ApiEndpoint(
-            path=f"{PATH_GET_TASK_STATUS}/{task_id}",
-            method=HttpMethod.GET,
-            request_model=EmptyRequest,
-            response_model=TaskStatusResponse,
-        ),
+    return await poll_op(
+        cls,
+        ApiEndpoint(path=f"{PATH_GET_TASK_STATUS}/{task_id}"),
+        response_model=TaskStatusResponse,
+        status_extractor=lambda r: r.status.value,
         estimated_duration=estimated_duration,
-        node_id=node_id,
+        progress_extractor=extract_progress_from_task_status,
     )
 
 
 async def generate_video(
+    cls: type[IO.ComfyNode],
     request: RunwayImageToVideoRequest,
-    auth_kwargs: dict[str, str],
-    node_id: Optional[str] = None,
     estimated_duration: Optional[int] = None,
 ) -> VideoFromFile:
-    initial_operation = SynchronousOperation(
-        endpoint=ApiEndpoint(
-            path=PATH_IMAGE_TO_VIDEO,
-            method=HttpMethod.POST,
-            request_model=RunwayImageToVideoRequest,
-            response_model=RunwayImageToVideoResponse,
-        ),
-        request=request,
-        auth_kwargs=auth_kwargs,
+    initial_response = await sync_op(
+        cls,
+        endpoint=ApiEndpoint(path=PATH_IMAGE_TO_VIDEO, method="POST"),
+        response_model=RunwayImageToVideoResponse,
+        data=request,
     )
 
-    initial_response = await initial_operation.execute()
-
-    final_response = await get_response(initial_response.id, auth_kwargs, node_id, estimated_duration)
+    final_response = await get_response(cls, initial_response.id, estimated_duration)
     if not final_response.output:
         raise RunwayApiError("Runway task succeeded but no video data found in response.")
 
@@ -175,55 +136,55 @@ async def generate_video(
     return await download_url_to_video_output(video_url)
 
 
-class RunwayImageToVideoNodeGen3a(comfy_io.ComfyNode):
+class RunwayImageToVideoNodeGen3a(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="RunwayImageToVideoNodeGen3a",
             display_name="Runway Image to Video (Gen3a Turbo)",
             category="api node/video/Runway",
             description="Generate a video from a single starting frame using Gen3a Turbo model. "
-                        "Before diving in, review these best practices to ensure that "
-                        "your input selections will set your generation up for success: "
-                        "https://help.runwayml.com/hc/en-us/articles/33927968552339-Creating-with-Act-One-on-Gen-3-Alpha-and-Turbo.",
+            "Before diving in, review these best practices to ensure that "
+            "your input selections will set your generation up for success: "
+            "https://help.runwayml.com/hc/en-us/articles/33927968552339-Creating-with-Act-One-on-Gen-3-Alpha-and-Turbo.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Text prompt for the generation",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "start_frame",
                     tooltip="Start frame to be used for the video",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration",
                     options=Duration,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "ratio",
                     options=RunwayGen3aAspectRatio,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967295,
                     step=1,
                     control_after_generate=True,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Random seed for generation",
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -236,25 +197,21 @@ class RunwayImageToVideoNodeGen3a(comfy_io.ComfyNode):
         duration: str,
         ratio: str,
         seed: int,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, min_length=1)
         validate_image_dimensions(start_frame, max_width=7999, max_height=7999)
-        validate_image_aspect_ratio(start_frame, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
-
-        auth_kwargs = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
+        validate_image_aspect_ratio(start_frame, (1, 2), (2, 1))
 
         download_urls = await upload_images_to_comfyapi(
+            cls,
             start_frame,
             max_images=1,
             mime_type="image/png",
-            auth_kwargs=auth_kwargs,
         )
 
-        return comfy_io.NodeOutput(
+        return IO.NodeOutput(
             await generate_video(
+                cls,
                 RunwayImageToVideoRequest(
                     promptText=prompt,
                     seed=seed,
@@ -262,68 +219,62 @@ class RunwayImageToVideoNodeGen3a(comfy_io.ComfyNode):
                     duration=Duration(duration),
                     ratio=AspectRatio(ratio),
                     promptImage=RunwayPromptImageObject(
-                        root=[
-                            RunwayPromptImageDetailedObject(
-                                uri=str(download_urls[0]), position="first"
-                            )
-                        ]
+                        root=[RunwayPromptImageDetailedObject(uri=str(download_urls[0]), position="first")]
                     ),
                 ),
-                auth_kwargs=auth_kwargs,
-                node_id=cls.hidden.unique_id,
             )
         )
 
 
-class RunwayImageToVideoNodeGen4(comfy_io.ComfyNode):
+class RunwayImageToVideoNodeGen4(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="RunwayImageToVideoNodeGen4",
             display_name="Runway Image to Video (Gen4 Turbo)",
             category="api node/video/Runway",
             description="Generate a video from a single starting frame using Gen4 Turbo model. "
-                        "Before diving in, review these best practices to ensure that "
-                        "your input selections will set your generation up for success: "
-                        "https://help.runwayml.com/hc/en-us/articles/37327109429011-Creating-with-Gen-4-Video.",
+            "Before diving in, review these best practices to ensure that "
+            "your input selections will set your generation up for success: "
+            "https://help.runwayml.com/hc/en-us/articles/37327109429011-Creating-with-Gen-4-Video.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Text prompt for the generation",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "start_frame",
                     tooltip="Start frame to be used for the video",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration",
                     options=Duration,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "ratio",
                     options=RunwayGen4TurboAspectRatio,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967295,
                     step=1,
                     control_after_generate=True,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Random seed for generation",
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -336,25 +287,21 @@ class RunwayImageToVideoNodeGen4(comfy_io.ComfyNode):
         duration: str,
         ratio: str,
         seed: int,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, min_length=1)
         validate_image_dimensions(start_frame, max_width=7999, max_height=7999)
-        validate_image_aspect_ratio(start_frame, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
-
-        auth_kwargs = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
+        validate_image_aspect_ratio(start_frame, (1, 2), (2, 1))
 
         download_urls = await upload_images_to_comfyapi(
+            cls,
             start_frame,
             max_images=1,
             mime_type="image/png",
-            auth_kwargs=auth_kwargs,
         )
 
-        return comfy_io.NodeOutput(
+        return IO.NodeOutput(
             await generate_video(
+                cls,
                 RunwayImageToVideoRequest(
                     promptText=prompt,
                     seed=seed,
@@ -362,76 +309,70 @@ class RunwayImageToVideoNodeGen4(comfy_io.ComfyNode):
                     duration=Duration(duration),
                     ratio=AspectRatio(ratio),
                     promptImage=RunwayPromptImageObject(
-                        root=[
-                            RunwayPromptImageDetailedObject(
-                                uri=str(download_urls[0]), position="first"
-                            )
-                        ]
+                        root=[RunwayPromptImageDetailedObject(uri=str(download_urls[0]), position="first")]
                     ),
                 ),
-                auth_kwargs=auth_kwargs,
-                node_id=cls.hidden.unique_id,
                 estimated_duration=AVERAGE_DURATION_FLF_SECONDS,
             )
         )
 
 
-class RunwayFirstLastFrameNode(comfy_io.ComfyNode):
+class RunwayFirstLastFrameNode(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="RunwayFirstLastFrameNode",
             display_name="Runway First-Last-Frame to Video",
             category="api node/video/Runway",
             description="Upload first and last keyframes, draft a prompt, and generate a video. "
-                        "More complex transitions, such as cases where the Last frame is completely different "
-                        "from the First frame, may benefit from the longer 10s duration. "
-                        "This would give the generation more time to smoothly transition between the two inputs. "
-                        "Before diving in, review these best practices to ensure that your input selections "
-                        "will set your generation up for success: "
-                        "https://help.runwayml.com/hc/en-us/articles/34170748696595-Creating-with-Keyframes-on-Gen-3.",
+            "More complex transitions, such as cases where the Last frame is completely different "
+            "from the First frame, may benefit from the longer 10s duration. "
+            "This would give the generation more time to smoothly transition between the two inputs. "
+            "Before diving in, review these best practices to ensure that your input selections "
+            "will set your generation up for success: "
+            "https://help.runwayml.com/hc/en-us/articles/34170748696595-Creating-with-Keyframes-on-Gen-3.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Text prompt for the generation",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "start_frame",
                     tooltip="Start frame to be used for the video",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "end_frame",
                     tooltip="End frame to be used for the video. Supported for gen3a_turbo only.",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration",
                     options=Duration,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "ratio",
                     options=RunwayGen3aAspectRatio,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967295,
                     step=1,
                     control_after_generate=True,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Random seed for generation",
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -445,30 +386,26 @@ class RunwayFirstLastFrameNode(comfy_io.ComfyNode):
         duration: str,
         ratio: str,
         seed: int,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, min_length=1)
         validate_image_dimensions(start_frame, max_width=7999, max_height=7999)
         validate_image_dimensions(end_frame, max_width=7999, max_height=7999)
-        validate_image_aspect_ratio(start_frame, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
-        validate_image_aspect_ratio(end_frame, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
-
-        auth_kwargs = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
+        validate_image_aspect_ratio(start_frame, (1, 2), (2, 1))
+        validate_image_aspect_ratio(end_frame, (1, 2), (2, 1))
 
         stacked_input_images = image_tensor_pair_to_batch(start_frame, end_frame)
         download_urls = await upload_images_to_comfyapi(
+            cls,
             stacked_input_images,
             max_images=2,
             mime_type="image/png",
-            auth_kwargs=auth_kwargs,
         )
         if len(download_urls) != 2:
             raise RunwayApiError("Failed to upload one or more images to comfy api.")
 
-        return comfy_io.NodeOutput(
+        return IO.NodeOutput(
             await generate_video(
+                cls,
                 RunwayImageToVideoRequest(
                     promptText=prompt,
                     seed=seed,
@@ -477,56 +414,50 @@ class RunwayFirstLastFrameNode(comfy_io.ComfyNode):
                     ratio=AspectRatio(ratio),
                     promptImage=RunwayPromptImageObject(
                         root=[
-                            RunwayPromptImageDetailedObject(
-                                uri=str(download_urls[0]), position="first"
-                            ),
-                            RunwayPromptImageDetailedObject(
-                                uri=str(download_urls[1]), position="last"
-                            ),
+                            RunwayPromptImageDetailedObject(uri=str(download_urls[0]), position="first"),
+                            RunwayPromptImageDetailedObject(uri=str(download_urls[1]), position="last"),
                         ]
                     ),
                 ),
-                auth_kwargs=auth_kwargs,
-                node_id=cls.hidden.unique_id,
                 estimated_duration=AVERAGE_DURATION_FLF_SECONDS,
             )
         )
 
 
-class RunwayTextToImageNode(comfy_io.ComfyNode):
+class RunwayTextToImageNode(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="RunwayTextToImageNode",
             display_name="Runway Text to Image",
             category="api node/image/Runway",
             description="Generate an image from a text prompt using Runway's Gen 4 model. "
-                        "You can also include reference image to guide the generation.",
+            "You can also include reference image to guide the generation.",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Text prompt for the generation",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "ratio",
                     options=[model.value for model in RunwayTextToImageAspectRatioEnum],
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "reference_image",
                     tooltip="Optional reference image to guide the generation",
                     optional=True,
                 ),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -537,63 +468,48 @@ class RunwayTextToImageNode(comfy_io.ComfyNode):
         prompt: str,
         ratio: str,
         reference_image: Optional[torch.Tensor] = None,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, min_length=1)
 
-        auth_kwargs = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-
         # Prepare reference images if provided
         reference_images = None
         if reference_image is not None:
             validate_image_dimensions(reference_image, max_width=7999, max_height=7999)
-            validate_image_aspect_ratio(reference_image, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
+            validate_image_aspect_ratio(reference_image, (1, 2), (2, 1))
             download_urls = await upload_images_to_comfyapi(
+                cls,
                 reference_image,
                 max_images=1,
                 mime_type="image/png",
-                auth_kwargs=auth_kwargs,
             )
             reference_images = [ReferenceImage(uri=str(download_urls[0]))]
 
-        request = RunwayTextToImageRequest(
-            promptText=prompt,
-            model=Model4.gen4_image,
-            ratio=ratio,
-            referenceImages=reference_images,
-        )
-
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=PATH_TEXT_TO_IMAGE,
-                method=HttpMethod.POST,
-                request_model=RunwayTextToImageRequest,
-                response_model=RunwayTextToImageResponse,
+        initial_response = await sync_op(
+            cls,
+            endpoint=ApiEndpoint(path=PATH_TEXT_TO_IMAGE, method="POST"),
+            response_model=RunwayTextToImageResponse,
+            data=RunwayTextToImageRequest(
+                promptText=prompt,
+                model=Model4.gen4_image,
+                ratio=ratio,
+                referenceImages=reference_images,
             ),
-            request=request,
-            auth_kwargs=auth_kwargs,
         )
 
-        initial_response = await initial_operation.execute()
-
-        # Poll for completion
         final_response = await get_response(
+            cls,
             initial_response.id,
-            auth_kwargs=auth_kwargs,
-            node_id=cls.hidden.unique_id,
             estimated_duration=AVERAGE_DURATION_T2I_SECONDS,
         )
         if not final_response.output:
             raise RunwayApiError("Runway task succeeded but no image data found in response.")
 
-        return comfy_io.NodeOutput(await download_url_to_image_tensor(get_image_url_from_task_status(final_response)))
+        return IO.NodeOutput(await download_url_to_image_tensor(get_image_url_from_task_status(final_response)))
 
 
 class RunwayExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             RunwayFirstLastFrameNode,
             RunwayImageToVideoNodeGen3a,
@@ -601,5 +517,6 @@ class RunwayExtension(ComfyExtension):
             RunwayTextToImageNode,
         ]
 
+
 async def comfy_entrypoint() -> RunwayExtension:
     return RunwayExtension()

comfy_api_nodes/nodes_sora.py

@@ -1,23 +1,20 @@
 from typing import Optional
-from typing_extensions import override
 
 import torch
 from pydantic import BaseModel, Field
-from comfy_api.latest import ComfyExtension, io as comfy_io
-from comfy_api_nodes.apis.client import (
-    ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-    EmptyRequest,
-)
-from comfy_api_nodes.util.validation_utils import get_number_of_images
+from typing_extensions import override
 
-from comfy_api_nodes.apinode_utils import (
+from comfy_api.latest import IO, ComfyExtension
+from comfy_api_nodes.util import (
+    ApiEndpoint,
     download_url_to_video_output,
+    get_number_of_images,
+    poll_op,
+    sync_op,
     tensor_to_bytesio,
 )
 
+
 class Sora2GenerationRequest(BaseModel):
     prompt: str = Field(...)
     model: str = Field(...)
@@ -31,27 +28,27 @@ class Sora2GenerationResponse(BaseModel):
     status: Optional[str] = Field(None)
 
 
-class OpenAIVideoSora2(comfy_io.ComfyNode):
+class OpenAIVideoSora2(IO.ComfyNode):
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="OpenAIVideoSora2",
             display_name="OpenAI Sora - Video",
             category="api node/video/Sora",
             description="OpenAI video and audio generation.",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["sora-2", "sora-2-pro"],
                     default="sora-2",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Guiding text; may be empty if an input image is present.",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "size",
                     options=[
                         "720x1280",
@@ -61,35 +58,35 @@ class OpenAIVideoSora2(comfy_io.ComfyNode):
                     ],
                     default="1280x720",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "duration",
                     options=[4, 8, 12],
                     default=8,
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     optional=True,
                     tooltip="Seed to determine if node should re-run; "
-                            "actual results are nondeterministic regardless of seed.",
+                    "actual results are nondeterministic regardless of seed.",
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -111,61 +108,40 @@ class OpenAIVideoSora2(comfy_io.ComfyNode):
             if get_number_of_images(image) != 1:
                 raise ValueError("Currently only one input image is supported.")
             files_input = {"input_reference": ("image.png", tensor_to_bytesio(image), "image/png")}
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        payload = Sora2GenerationRequest(
-            model=model,
-            prompt=prompt,
-            seconds=str(duration),
-            size=size,
-        )
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/openai/v1/videos",
-                method=HttpMethod.POST,
-                request_model=Sora2GenerationRequest,
-                response_model=Sora2GenerationResponse
+        initial_response = await sync_op(
+            cls,
+            endpoint=ApiEndpoint(path="/proxy/openai/v1/videos", method="POST"),
+            data=Sora2GenerationRequest(
+                model=model,
+                prompt=prompt,
+                seconds=str(duration),
+                size=size,
             ),
-            request=payload,
             files=files_input,
-            auth_kwargs=auth,
+            response_model=Sora2GenerationResponse,
             content_type="multipart/form-data",
         )
-        initial_response = await initial_operation.execute()
         if initial_response.error:
-            raise Exception(initial_response.error.message)
+            raise Exception(initial_response.error["message"])
 
         model_time_multiplier = 1 if model == "sora-2" else 2
-        poll_operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/openai/v1/videos/{initial_response.id}",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=Sora2GenerationResponse
-            ),
-            completed_statuses=["completed"],
-            failed_statuses=["failed"],
+        await poll_op(
+            cls,
+            poll_endpoint=ApiEndpoint(path=f"/proxy/openai/v1/videos/{initial_response.id}"),
+            response_model=Sora2GenerationResponse,
             status_extractor=lambda x: x.status,
-            auth_kwargs=auth,
             poll_interval=8.0,
             max_poll_attempts=160,
-            node_id=cls.hidden.unique_id,
-            estimated_duration=45 * (duration / 4) * model_time_multiplier,
+            estimated_duration=int(45 * (duration / 4) * model_time_multiplier),
         )
-        await poll_operation.execute()
-        return comfy_io.NodeOutput(
-            await download_url_to_video_output(
-                f"/proxy/openai/v1/videos/{initial_response.id}/content",
-                auth_kwargs=auth,
-            )
+        return IO.NodeOutput(
+            await download_url_to_video_output(f"/proxy/openai/v1/videos/{initial_response.id}/content", cls=cls),
         )
 
 
 class OpenAISoraExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             OpenAIVideoSora2,
         ]

comfy_api_nodes/nodes_stability.py

@@ -2,7 +2,7 @@ from inspect import cleandoc
 from typing import Optional
 from typing_extensions import override
 
-from comfy_api.latest import ComfyExtension, Input, io as comfy_io
+from comfy_api.latest import ComfyExtension, Input, IO
 from comfy_api_nodes.apis.stability_api import (
     StabilityUpscaleConservativeRequest,
     StabilityUpscaleCreativeRequest,
@@ -20,21 +20,17 @@ from comfy_api_nodes.apis.stability_api import (
     StabilityAudioInpaintRequest,
     StabilityAudioResponse,
 )
-from comfy_api_nodes.apis.client import (
-    ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-    EmptyRequest,
-)
-from comfy_api_nodes.apinode_utils import (
+from comfy_api_nodes.util import (
+    validate_audio_duration,
+    validate_string,
+    audio_input_to_mp3,
     bytesio_to_image_tensor,
     tensor_to_bytesio,
-    validate_string,
     audio_bytes_to_audio_input,
-    audio_input_to_mp3,
+    sync_op,
+    poll_op,
+    ApiEndpoint,
 )
-from comfy_api_nodes.util.validation_utils import validate_audio_duration
 
 import torch
 import base64
@@ -56,20 +52,20 @@ def get_async_dummy_status(x: StabilityResultsGetResponse):
     return StabilityPollStatus.in_progress
 
 
-class StabilityStableImageUltraNode(comfy_io.ComfyNode):
+class StabilityStableImageUltraNode(IO.ComfyNode):
     """
     Generates images synchronously based on prompt and resolution.
     """
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="StabilityStableImageUltraNode",
             display_name="Stability AI Stable Image Ultra",
             category="api node/image/Stability AI",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
@@ -80,39 +76,39 @@ class StabilityStableImageUltraNode(comfy_io.ComfyNode):
                                     "is a value between 0 and 1. For example: `The sky was a crisp (blue:0.3) and (green:0.8)`" +
                                     "would convey a sky that was blue and green, but more green than blue.",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=StabilityAspectRatio,
                     default=StabilityAspectRatio.ratio_1_1,
                     tooltip="Aspect ratio of generated image.",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "style_preset",
                     options=get_stability_style_presets(),
                     tooltip="Optional desired style of generated image.",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967294,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="The random seed used for creating the noise.",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     optional=True,
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     default="",
                     tooltip="A blurb of text describing what you do not wish to see in the output image. This is an advanced feature.",
                     force_input=True,
                     optional=True,
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "image_denoise",
                     default=0.5,
                     min=0.0,
@@ -123,12 +119,12 @@ class StabilityStableImageUltraNode(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -143,7 +139,7 @@ class StabilityStableImageUltraNode(comfy_io.ComfyNode):
         image: Optional[torch.Tensor] = None,
         negative_prompt: str = "",
         image_denoise: Optional[float] = 0.5,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=False)
         # prepare image binary if image present
         image_binary = None
@@ -161,19 +157,11 @@ class StabilityStableImageUltraNode(comfy_io.ComfyNode):
             "image": image_binary
         }
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/stability/v2beta/stable-image/generate/ultra",
-                method=HttpMethod.POST,
-                request_model=StabilityStableUltraRequest,
-                response_model=StabilityStableUltraResponse,
-            ),
-            request=StabilityStableUltraRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/stability/v2beta/stable-image/generate/ultra", method="POST"),
+            response_model=StabilityStableUltraResponse,
+            data=StabilityStableUltraRequest(
                 prompt=prompt,
                 negative_prompt=negative_prompt,
                 aspect_ratio=aspect_ratio,
@@ -183,9 +171,7 @@ class StabilityStableImageUltraNode(comfy_io.ComfyNode):
             ),
             files=files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
-        response_api = await operation.execute()
 
         if response_api.finish_reason != "SUCCESS":
             raise Exception(f"Stable Image Ultra generation failed: {response_api.finish_reason}.")
@@ -193,44 +179,44 @@ class StabilityStableImageUltraNode(comfy_io.ComfyNode):
         image_data = base64.b64decode(response_api.image)
         returned_image = bytesio_to_image_tensor(BytesIO(image_data))
 
-        return comfy_io.NodeOutput(returned_image)
+        return IO.NodeOutput(returned_image)
 
 
-class StabilityStableImageSD_3_5Node(comfy_io.ComfyNode):
+class StabilityStableImageSD_3_5Node(IO.ComfyNode):
     """
     Generates images synchronously based on prompt and resolution.
     """
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="StabilityStableImageSD_3_5Node",
             display_name="Stability AI Stable Diffusion 3.5 Image",
             category="api node/image/Stability AI",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="What you wish to see in the output image. A strong, descriptive prompt that clearly defines elements, colors, and subjects will lead to better results.",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=Stability_SD3_5_Model,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=StabilityAspectRatio,
                     default=StabilityAspectRatio.ratio_1_1,
                     tooltip="Aspect ratio of generated image.",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "style_preset",
                     options=get_stability_style_presets(),
                     tooltip="Optional desired style of generated image.",
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "cfg_scale",
                     default=4.0,
                     min=1.0,
@@ -238,28 +224,28 @@ class StabilityStableImageSD_3_5Node(comfy_io.ComfyNode):
                     step=0.1,
                     tooltip="How strictly the diffusion process adheres to the prompt text (higher values keep your image closer to your prompt)",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967294,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="The random seed used for creating the noise.",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     optional=True,
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     default="",
                     tooltip="Keywords of what you do not wish to see in the output image. This is an advanced feature.",
                     force_input=True,
                     optional=True,
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "image_denoise",
                     default=0.5,
                     min=0.0,
@@ -270,12 +256,12 @@ class StabilityStableImageSD_3_5Node(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -292,7 +278,7 @@ class StabilityStableImageSD_3_5Node(comfy_io.ComfyNode):
         image: Optional[torch.Tensor] = None,
         negative_prompt: str = "",
         image_denoise: Optional[float] = 0.5,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=False)
         # prepare image binary if image present
         image_binary = None
@@ -313,19 +299,11 @@ class StabilityStableImageSD_3_5Node(comfy_io.ComfyNode):
             "image": image_binary
         }
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/stability/v2beta/stable-image/generate/sd3",
-                method=HttpMethod.POST,
-                request_model=StabilityStable3_5Request,
-                response_model=StabilityStableUltraResponse,
-            ),
-            request=StabilityStable3_5Request(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/stability/v2beta/stable-image/generate/sd3", method="POST"),
+            response_model=StabilityStableUltraResponse,
+            data=StabilityStable3_5Request(
                 prompt=prompt,
                 negative_prompt=negative_prompt,
                 aspect_ratio=aspect_ratio,
@@ -338,9 +316,7 @@ class StabilityStableImageSD_3_5Node(comfy_io.ComfyNode):
             ),
             files=files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
-        response_api = await operation.execute()
 
         if response_api.finish_reason != "SUCCESS":
             raise Exception(f"Stable Diffusion 3.5 Image generation failed: {response_api.finish_reason}.")
@@ -348,30 +324,30 @@ class StabilityStableImageSD_3_5Node(comfy_io.ComfyNode):
         image_data = base64.b64decode(response_api.image)
         returned_image = bytesio_to_image_tensor(BytesIO(image_data))
 
-        return comfy_io.NodeOutput(returned_image)
+        return IO.NodeOutput(returned_image)
 
 
-class StabilityUpscaleConservativeNode(comfy_io.ComfyNode):
+class StabilityUpscaleConservativeNode(IO.ComfyNode):
     """
     Upscale image with minimal alterations to 4K resolution.
     """
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="StabilityUpscaleConservativeNode",
             display_name="Stability AI Upscale Conservative",
             category="api node/image/Stability AI",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Image.Input("image"),
-                comfy_io.String.Input(
+                IO.Image.Input("image"),
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="What you wish to see in the output image. A strong, descriptive prompt that clearly defines elements, colors, and subjects will lead to better results.",
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "creativity",
                     default=0.35,
                     min=0.2,
@@ -379,17 +355,17 @@ class StabilityUpscaleConservativeNode(comfy_io.ComfyNode):
                     step=0.01,
                     tooltip="Controls the likelihood of creating additional details not heavily conditioned by the init image.",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967294,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="The random seed used for creating the noise.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     default="",
                     tooltip="Keywords of what you do not wish to see in the output image. This is an advanced feature.",
@@ -398,12 +374,12 @@ class StabilityUpscaleConservativeNode(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -416,7 +392,7 @@ class StabilityUpscaleConservativeNode(comfy_io.ComfyNode):
         creativity: float,
         seed: int,
         negative_prompt: str = "",
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=False)
         image_binary = tensor_to_bytesio(image, total_pixels=1024*1024).read()
 
@@ -427,19 +403,11 @@ class StabilityUpscaleConservativeNode(comfy_io.ComfyNode):
             "image": image_binary
         }
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/stability/v2beta/stable-image/upscale/conservative",
-                method=HttpMethod.POST,
-                request_model=StabilityUpscaleConservativeRequest,
-                response_model=StabilityStableUltraResponse,
-            ),
-            request=StabilityUpscaleConservativeRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/stability/v2beta/stable-image/upscale/conservative", method="POST"),
+            response_model=StabilityStableUltraResponse,
+            data=StabilityUpscaleConservativeRequest(
                 prompt=prompt,
                 negative_prompt=negative_prompt,
                 creativity=round(creativity,2),
@@ -447,9 +415,7 @@ class StabilityUpscaleConservativeNode(comfy_io.ComfyNode):
             ),
             files=files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
-        response_api = await operation.execute()
 
         if response_api.finish_reason != "SUCCESS":
             raise Exception(f"Stability Upscale Conservative generation failed: {response_api.finish_reason}.")
@@ -457,30 +423,30 @@ class StabilityUpscaleConservativeNode(comfy_io.ComfyNode):
         image_data = base64.b64decode(response_api.image)
         returned_image = bytesio_to_image_tensor(BytesIO(image_data))
 
-        return comfy_io.NodeOutput(returned_image)
+        return IO.NodeOutput(returned_image)
 
 
-class StabilityUpscaleCreativeNode(comfy_io.ComfyNode):
+class StabilityUpscaleCreativeNode(IO.ComfyNode):
     """
     Upscale image with minimal alterations to 4K resolution.
     """
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="StabilityUpscaleCreativeNode",
             display_name="Stability AI Upscale Creative",
             category="api node/image/Stability AI",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Image.Input("image"),
-                comfy_io.String.Input(
+                IO.Image.Input("image"),
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="What you wish to see in the output image. A strong, descriptive prompt that clearly defines elements, colors, and subjects will lead to better results.",
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "creativity",
                     default=0.3,
                     min=0.1,
@@ -488,22 +454,22 @@ class StabilityUpscaleCreativeNode(comfy_io.ComfyNode):
                     step=0.01,
                     tooltip="Controls the likelihood of creating additional details not heavily conditioned by the init image.",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "style_preset",
                     options=get_stability_style_presets(),
                     tooltip="Optional desired style of generated image.",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967294,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="The random seed used for creating the noise.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     default="",
                     tooltip="Keywords of what you do not wish to see in the output image. This is an advanced feature.",
@@ -512,12 +478,12 @@ class StabilityUpscaleCreativeNode(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -531,7 +497,7 @@ class StabilityUpscaleCreativeNode(comfy_io.ComfyNode):
         style_preset: str,
         seed: int,
         negative_prompt: str = "",
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, strip_whitespace=False)
         image_binary = tensor_to_bytesio(image, total_pixels=1024*1024).read()
 
@@ -544,19 +510,11 @@ class StabilityUpscaleCreativeNode(comfy_io.ComfyNode):
             "image": image_binary
         }
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/stability/v2beta/stable-image/upscale/creative",
-                method=HttpMethod.POST,
-                request_model=StabilityUpscaleCreativeRequest,
-                response_model=StabilityAsyncResponse,
-            ),
-            request=StabilityUpscaleCreativeRequest(
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/stability/v2beta/stable-image/upscale/creative", method="POST"),
+            response_model=StabilityAsyncResponse,
+            data=StabilityUpscaleCreativeRequest(
                 prompt=prompt,
                 negative_prompt=negative_prompt,
                 creativity=round(creativity,2),
@@ -565,25 +523,15 @@ class StabilityUpscaleCreativeNode(comfy_io.ComfyNode):
             ),
             files=files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
-        response_api = await operation.execute()
 
-        operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/stability/v2beta/results/{response_api.id}",
-                method=HttpMethod.GET,
-                request_model=EmptyRequest,
-                response_model=StabilityResultsGetResponse,
-            ),
+        response_poll = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/stability/v2beta/results/{response_api.id}"),
+            response_model=StabilityResultsGetResponse,
             poll_interval=3,
-            completed_statuses=[StabilityPollStatus.finished],
-            failed_statuses=[StabilityPollStatus.failed],
             status_extractor=lambda x: get_async_dummy_status(x),
-            auth_kwargs=auth,
-            node_id=cls.hidden.unique_id,
         )
-        response_poll: StabilityResultsGetResponse = await operation.execute()
 
         if response_poll.finish_reason != "SUCCESS":
             raise Exception(f"Stability Upscale Creative generation failed: {response_poll.finish_reason}.")
@@ -591,61 +539,50 @@ class StabilityUpscaleCreativeNode(comfy_io.ComfyNode):
         image_data = base64.b64decode(response_poll.result)
         returned_image = bytesio_to_image_tensor(BytesIO(image_data))
 
-        return comfy_io.NodeOutput(returned_image)
+        return IO.NodeOutput(returned_image)
 
 
-class StabilityUpscaleFastNode(comfy_io.ComfyNode):
+class StabilityUpscaleFastNode(IO.ComfyNode):
     """
     Quickly upscales an image via Stability API call to 4x its original size; intended for upscaling low-quality/compressed images.
     """
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="StabilityUpscaleFastNode",
             display_name="Stability AI Upscale Fast",
             category="api node/image/Stability AI",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Image.Input("image"),
+                IO.Image.Input("image"),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
 
     @classmethod
-    async def execute(cls, image: torch.Tensor) -> comfy_io.NodeOutput:
+    async def execute(cls, image: torch.Tensor) -> IO.NodeOutput:
         image_binary = tensor_to_bytesio(image, total_pixels=4096*4096).read()
 
         files = {
             "image": image_binary
         }
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/stability/v2beta/stable-image/upscale/fast",
-                method=HttpMethod.POST,
-                request_model=EmptyRequest,
-                response_model=StabilityStableUltraResponse,
-            ),
-            request=EmptyRequest(),
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/stability/v2beta/stable-image/upscale/fast", method="POST"),
+            response_model=StabilityStableUltraResponse,
             files=files,
             content_type="multipart/form-data",
-            auth_kwargs=auth,
         )
-        response_api = await operation.execute()
 
         if response_api.finish_reason != "SUCCESS":
             raise Exception(f"Stability Upscale Fast failed: {response_api.finish_reason}.")
@@ -653,26 +590,26 @@ class StabilityUpscaleFastNode(comfy_io.ComfyNode):
         image_data = base64.b64decode(response_api.image)
         returned_image = bytesio_to_image_tensor(BytesIO(image_data))
 
-        return comfy_io.NodeOutput(returned_image)
+        return IO.NodeOutput(returned_image)
 
 
-class StabilityTextToAudio(comfy_io.ComfyNode):
+class StabilityTextToAudio(IO.ComfyNode):
     """Generates high-quality music and sound effects from text descriptions."""
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="StabilityTextToAudio",
             display_name="Stability AI Text To Audio",
             category="api node/audio/Stability AI",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["stable-audio-2.5"],
                 ),
-                comfy_io.String.Input("prompt", multiline=True, default=""),
-                comfy_io.Int.Input(
+                IO.String.Input("prompt", multiline=True, default=""),
+                IO.Int.Input(
                     "duration",
                     default=190,
                     min=1,
@@ -681,18 +618,18 @@ class StabilityTextToAudio(comfy_io.ComfyNode):
                     tooltip="Controls the duration in seconds of the generated audio.",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967294,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="The random seed used for generation.",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "steps",
                     default=8,
                     min=4,
@@ -703,58 +640,50 @@ class StabilityTextToAudio(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Audio.Output(),
+                IO.Audio.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
 
     @classmethod
-    async def execute(cls, model: str, prompt: str, duration: int, seed: int, steps: int) -> comfy_io.NodeOutput:
+    async def execute(cls, model: str, prompt: str, duration: int, seed: int, steps: int) -> IO.NodeOutput:
         validate_string(prompt, max_length=10000)
         payload = StabilityTextToAudioRequest(prompt=prompt, model=model, duration=duration, seed=seed, steps=steps)
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/stability/v2beta/audio/stable-audio-2/text-to-audio",
-                method=HttpMethod.POST,
-                request_model=StabilityTextToAudioRequest,
-                response_model=StabilityAudioResponse,
-            ),
-            request=payload,
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/stability/v2beta/audio/stable-audio-2/text-to-audio", method="POST"),
+            response_model=StabilityAudioResponse,
+            data=payload,
             content_type="multipart/form-data",
-            auth_kwargs= {
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
         )
-        response_api = await operation.execute()
         if not response_api.audio:
             raise ValueError("No audio file was received in response.")
-        return comfy_io.NodeOutput(audio_bytes_to_audio_input(base64.b64decode(response_api.audio)))
+        return IO.NodeOutput(audio_bytes_to_audio_input(base64.b64decode(response_api.audio)))
 
 
-class StabilityAudioToAudio(comfy_io.ComfyNode):
+class StabilityAudioToAudio(IO.ComfyNode):
     """Transforms existing audio samples into new high-quality compositions using text instructions."""
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="StabilityAudioToAudio",
             display_name="Stability AI Audio To Audio",
             category="api node/audio/Stability AI",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["stable-audio-2.5"],
                 ),
-                comfy_io.String.Input("prompt", multiline=True, default=""),
-                comfy_io.Audio.Input("audio", tooltip="Audio must be between 6 and 190 seconds long."),
-                comfy_io.Int.Input(
+                IO.String.Input("prompt", multiline=True, default=""),
+                IO.Audio.Input("audio", tooltip="Audio must be between 6 and 190 seconds long."),
+                IO.Int.Input(
                     "duration",
                     default=190,
                     min=1,
@@ -763,18 +692,18 @@ class StabilityAudioToAudio(comfy_io.ComfyNode):
                     tooltip="Controls the duration in seconds of the generated audio.",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967294,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="The random seed used for generation.",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "steps",
                     default=8,
                     min=4,
@@ -783,24 +712,24 @@ class StabilityAudioToAudio(comfy_io.ComfyNode):
                     tooltip="Controls the number of sampling steps.",
                     optional=True,
                 ),
-                comfy_io.Float.Input(
+                IO.Float.Input(
                     "strength",
                     default=1,
                     min=0.01,
                     max=1.0,
                     step=0.01,
-                    display_mode=comfy_io.NumberDisplay.slider,
+                    display_mode=IO.NumberDisplay.slider,
                     tooltip="Parameter controls how much influence the audio parameter has on the generated audio.",
                     optional=True,
                 ),
             ],
             outputs=[
-                comfy_io.Audio.Output(),
+                IO.Audio.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -808,51 +737,43 @@ class StabilityAudioToAudio(comfy_io.ComfyNode):
     @classmethod
     async def execute(
         cls, model: str, prompt: str, audio: Input.Audio, duration: int, seed: int, steps: int, strength: float
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, max_length=10000)
         validate_audio_duration(audio, 6, 190)
         payload = StabilityAudioToAudioRequest(
             prompt=prompt, model=model, duration=duration, seed=seed, steps=steps, strength=strength
         )
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/stability/v2beta/audio/stable-audio-2/audio-to-audio",
-                method=HttpMethod.POST,
-                request_model=StabilityAudioToAudioRequest,
-                response_model=StabilityAudioResponse,
-            ),
-            request=payload,
+        response_api = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/stability/v2beta/audio/stable-audio-2/audio-to-audio", method="POST"),
+            response_model=StabilityAudioResponse,
+            data=payload,
             content_type="multipart/form-data",
             files={"audio": audio_input_to_mp3(audio)},
-            auth_kwargs= {
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
         )
-        response_api = await operation.execute()
         if not response_api.audio:
             raise ValueError("No audio file was received in response.")
-        return comfy_io.NodeOutput(audio_bytes_to_audio_input(base64.b64decode(response_api.audio)))
+        return IO.NodeOutput(audio_bytes_to_audio_input(base64.b64decode(response_api.audio)))
 
 
-class StabilityAudioInpaint(comfy_io.ComfyNode):
+class StabilityAudioInpaint(IO.ComfyNode):
     """Transforms part of existing audio sample using text instructions."""
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="StabilityAudioInpaint",
             display_name="Stability AI Audio Inpaint",
             category="api node/audio/Stability AI",
             description=cleandoc(cls.__doc__ or ""),
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["stable-audio-2.5"],
                 ),
-                comfy_io.String.Input("prompt", multiline=True, default=""),
-                comfy_io.Audio.Input("audio", tooltip="Audio must be between 6 and 190 seconds long."),
-                comfy_io.Int.Input(
+                IO.String.Input("prompt", multiline=True, default=""),
+                IO.Audio.Input("audio", tooltip="Audio must be between 6 and 190 seconds long."),
+                IO.Int.Input(
                     "duration",
                     default=190,
                     min=1,
@@ -861,18 +782,18 @@ class StabilityAudioInpaint(comfy_io.ComfyNode):
                     tooltip="Controls the duration in seconds of the generated audio.",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=4294967294,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="The random seed used for generation.",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "steps",
                     default=8,
                     min=4,
@@ -881,7 +802,7 @@ class StabilityAudioInpaint(comfy_io.ComfyNode):
                     tooltip="Controls the number of sampling steps.",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "mask_start",
                     default=30,
                     min=0,
@@ -889,7 +810,7 @@ class StabilityAudioInpaint(comfy_io.ComfyNode):
                     step=1,
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "mask_end",
                     default=190,
                     min=0,
@@ -899,12 +820,12 @@ class StabilityAudioInpaint(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Audio.Output(),
+                IO.Audio.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -920,7 +841,7 @@ class StabilityAudioInpaint(comfy_io.ComfyNode):
         steps: int,
         mask_start: int,
         mask_end: int,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         validate_string(prompt, max_length=10000)
         if mask_end <= mask_start:
             raise ValueError(f"Value of mask_end({mask_end}) should be greater then mask_start({mask_start})")
@@ -935,30 +856,22 @@ class StabilityAudioInpaint(comfy_io.ComfyNode):
             mask_start=mask_start,
             mask_end=mask_end,
         )
-        operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path="/proxy/stability/v2beta/audio/stable-audio-2/inpaint",
-                method=HttpMethod.POST,
-                request_model=StabilityAudioInpaintRequest,
-                response_model=StabilityAudioResponse,
-            ),
-            request=payload,
+        response_api = await sync_op(
+            cls,
+            endpoint=ApiEndpoint(path="/proxy/stability/v2beta/audio/stable-audio-2/inpaint", method="POST"),
+            response_model=StabilityAudioResponse,
+            data=payload,
             content_type="multipart/form-data",
             files={"audio": audio_input_to_mp3(audio)},
-            auth_kwargs={
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
         )
-        response_api = await operation.execute()
         if not response_api.audio:
             raise ValueError("No audio file was received in response.")
-        return comfy_io.NodeOutput(audio_bytes_to_audio_input(base64.b64decode(response_api.audio)))
+        return IO.NodeOutput(audio_bytes_to_audio_input(base64.b64decode(response_api.audio)))
 
 
 class StabilityExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             StabilityStableImageUltraNode,
             StabilityStableImageSD_3_5Node,

comfy_api_nodes/nodes_veo2.py

@@ -1,57 +1,35 @@
-import logging
 import base64
-import aiohttp
-import torch
 from io import BytesIO
-from typing import Optional
+
 from typing_extensions import override
 
-from comfy_api.latest import ComfyExtension, io as comfy_io
 from comfy_api.input_impl.video_types import VideoFromFile
-from comfy_api_nodes.apis import (
-    VeoGenVidRequest,
-    VeoGenVidResponse,
+from comfy_api.latest import IO, ComfyExtension
+from comfy_api_nodes.apis.veo_api import (
     VeoGenVidPollRequest,
     VeoGenVidPollResponse,
+    VeoGenVidRequest,
+    VeoGenVidResponse,
 )
-from comfy_api_nodes.apis.client import (
+from comfy_api_nodes.util import (
     ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-)
-
-from comfy_api_nodes.apinode_utils import (
-    downscale_image_tensor,
+    download_url_to_video_output,
+    poll_op,
+    sync_op,
     tensor_to_base64_string,
 )
 
 AVERAGE_DURATION_VIDEO_GEN = 32
-
-def convert_image_to_base64(image: torch.Tensor):
-    if image is None:
-        return None
-
-    scaled_image = downscale_image_tensor(image, total_pixels=2048*2048)
-    return tensor_to_base64_string(scaled_image)
+MODELS_MAP = {
+    "veo-2.0-generate-001": "veo-2.0-generate-001",
+    "veo-3.1-generate": "veo-3.1-generate-preview",
+    "veo-3.1-fast-generate": "veo-3.1-fast-generate-preview",
+    "veo-3.0-generate-001": "veo-3.0-generate-001",
+    "veo-3.0-fast-generate-001": "veo-3.0-fast-generate-001",
+}
 
 
-def get_video_url_from_response(poll_response: VeoGenVidPollResponse) -> Optional[str]:
-    if (
-        poll_response.response
-        and hasattr(poll_response.response, "videos")
-        and poll_response.response.videos
-        and len(poll_response.response.videos) > 0
-    ):
-        video = poll_response.response.videos[0]
-    else:
-        return None
-    if hasattr(video, "gcsUri") and video.gcsUri:
-        return str(video.gcsUri)
-    return None
-
-
-class VeoVideoGenerationNode(comfy_io.ComfyNode):
+class VeoVideoGenerationNode(IO.ComfyNode):
     """
     Generates videos from text prompts using Google's Veo API.
 
@@ -61,71 +39,71 @@ class VeoVideoGenerationNode(comfy_io.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="VeoVideoGenerationNode",
             display_name="Google Veo 2 Video Generation",
             category="api node/video/Veo",
             description="Generates videos from text prompts using Google's Veo 2 API",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Text description of the video",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=["16:9", "9:16"],
                     default="16:9",
                     tooltip="Aspect ratio of the output video",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="",
                     tooltip="Negative text prompt to guide what to avoid in the video",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "duration_seconds",
                     default=5,
                     min=5,
                     max=8,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Duration of the output video in seconds",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "enhance_prompt",
                     default=True,
                     tooltip="Whether to enhance the prompt with AI assistance",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "person_generation",
                     options=["ALLOW", "BLOCK"],
                     default="ALLOW",
                     tooltip="Whether to allow generating people in the video",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=0xFFFFFFFF,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed for video generation (0 for random)",
                     optional=True,
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     tooltip="Optional reference image to guide video generation",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["veo-2.0-generate-001"],
                     default="veo-2.0-generate-001",
@@ -134,12 +112,12 @@ class VeoVideoGenerationNode(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -158,21 +136,17 @@ class VeoVideoGenerationNode(comfy_io.ComfyNode):
         model="veo-2.0-generate-001",
         generate_audio=False,
     ):
+        model = MODELS_MAP[model]
         # Prepare the instances for the request
         instances = []
 
-        instance = {
-            "prompt": prompt
-        }
+        instance = {"prompt": prompt}
 
         # Add image if provided
         if image is not None:
-            image_base64 = convert_image_to_base64(image)
+            image_base64 = tensor_to_base64_string(image)
             if image_base64:
-                instance["image"] = {
-                    "bytesBase64Encoded": image_base64,
-                    "mimeType": "image/png"
-                }
+                instance["image"] = {"bytesBase64Encoded": image_base64, "mimeType": "image/png"}
 
         instances.append(instance)
 
@@ -190,119 +164,77 @@ class VeoVideoGenerationNode(comfy_io.ComfyNode):
         if seed > 0:
             parameters["seed"] = seed
         # Only add generateAudio for Veo 3 models
-        if "veo-3.0" in model:
+        if model.find("veo-2.0") == -1:
             parameters["generateAudio"] = generate_audio
 
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        # Initial request to start video generation
-        initial_operation = SynchronousOperation(
-            endpoint=ApiEndpoint(
-                path=f"/proxy/veo/{model}/generate",
-                method=HttpMethod.POST,
-                request_model=VeoGenVidRequest,
-                response_model=VeoGenVidResponse
-            ),
-            request=VeoGenVidRequest(
+        initial_response = await sync_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/veo/{model}/generate", method="POST"),
+            response_model=VeoGenVidResponse,
+            data=VeoGenVidRequest(
                 instances=instances,
-                parameters=parameters
+                parameters=parameters,
             ),
-            auth_kwargs=auth,
         )
 
-        initial_response = await initial_operation.execute()
-        operation_name = initial_response.name
-
-        logging.info("Veo generation started with operation name: %s", operation_name)
-
-        # Define status extractor function
         def status_extractor(response):
             # Only return "completed" if the operation is done, regardless of success or failure
             # We'll check for errors after polling completes
             return "completed" if response.done else "pending"
 
-        # Define progress extractor function
-        def progress_extractor(response):
-            # Could be enhanced if the API provides progress information
-            return None
-
-        # Define the polling operation
-        poll_operation = PollingOperation(
-            poll_endpoint=ApiEndpoint(
-                path=f"/proxy/veo/{model}/poll",
-                method=HttpMethod.POST,
-                request_model=VeoGenVidPollRequest,
-                response_model=VeoGenVidPollResponse
-            ),
-            completed_statuses=["completed"],
-            failed_statuses=[],  # No failed statuses, we'll handle errors after polling
+        poll_response = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/veo/{model}/poll", method="POST"),
+            response_model=VeoGenVidPollResponse,
             status_extractor=status_extractor,
-            progress_extractor=progress_extractor,
-            request=VeoGenVidPollRequest(
-                operationName=operation_name
+            data=VeoGenVidPollRequest(
+                operationName=initial_response.name,
             ),
-            auth_kwargs=auth,
             poll_interval=5.0,
-            result_url_extractor=get_video_url_from_response,
-            node_id=cls.hidden.unique_id,
             estimated_duration=AVERAGE_DURATION_VIDEO_GEN,
         )
 
-        # Execute the polling operation
-        poll_response = await poll_operation.execute()
-
         # Now check for errors in the final response
         # Check for error in poll response
-        if hasattr(poll_response, 'error') and poll_response.error:
-            error_message = f"Veo API error: {poll_response.error.message} (code: {poll_response.error.code})"
-            logging.error(error_message)
-            raise Exception(error_message)
+        if poll_response.error:
+            raise Exception(f"Veo API error: {poll_response.error.message} (code: {poll_response.error.code})")
 
         # Check for RAI filtered content
-        if (hasattr(poll_response.response, 'raiMediaFilteredCount') and
-            poll_response.response.raiMediaFilteredCount > 0):
+        if (
+            hasattr(poll_response.response, "raiMediaFilteredCount")
+            and poll_response.response.raiMediaFilteredCount > 0
+        ):
 
             # Extract reason message if available
-            if (hasattr(poll_response.response, 'raiMediaFilteredReasons') and
-                poll_response.response.raiMediaFilteredReasons):
+            if (
+                hasattr(poll_response.response, "raiMediaFilteredReasons")
+                and poll_response.response.raiMediaFilteredReasons
+            ):
                 reason = poll_response.response.raiMediaFilteredReasons[0]
                 error_message = f"Content filtered by Google's Responsible AI practices: {reason} ({poll_response.response.raiMediaFilteredCount} videos filtered.)"
             else:
                 error_message = f"Content filtered by Google's Responsible AI practices ({poll_response.response.raiMediaFilteredCount} videos filtered.)"
 
-            logging.error(error_message)
             raise Exception(error_message)
 
         # Extract video data
-        if poll_response.response and hasattr(poll_response.response, 'videos') and poll_response.response.videos and len(poll_response.response.videos) > 0:
+        if (
+            poll_response.response
+            and hasattr(poll_response.response, "videos")
+            and poll_response.response.videos
+            and len(poll_response.response.videos) > 0
+        ):
             video = poll_response.response.videos[0]
 
             # Check if video is provided as base64 or URL
-            if hasattr(video, 'bytesBase64Encoded') and video.bytesBase64Encoded:
-                # Decode base64 string to bytes
-                video_data = base64.b64decode(video.bytesBase64Encoded)
-            elif hasattr(video, 'gcsUri') and video.gcsUri:
-                # Download from URL
-                async with aiohttp.ClientSession() as session:
-                    async with session.get(video.gcsUri) as video_response:
-                        video_data = await video_response.content.read()
-            else:
-                raise Exception("Video returned but no data or URL was provided")
-        else:
-            raise Exception("Video generation completed but no video was returned")
+            if hasattr(video, "bytesBase64Encoded") and video.bytesBase64Encoded:
+                return IO.NodeOutput(VideoFromFile(BytesIO(base64.b64decode(video.bytesBase64Encoded))))
 
-        if not video_data:
-            raise Exception("No video data was returned")
+            if hasattr(video, "gcsUri") and video.gcsUri:
+                return IO.NodeOutput(await download_url_to_video_output(video.gcsUri))
 
-        logging.info("Video generation completed successfully")
-
-        # Convert video data to BytesIO object
-        video_io = BytesIO(video_data)
-
-        # Return VideoFromFile object
-        return comfy_io.NodeOutput(VideoFromFile(video_io))
+            raise Exception("Video returned but no data or URL was provided")
+        raise Exception("Video generation completed but no video was returned")
 
 
 class Veo3VideoGenerationNode(VeoVideoGenerationNode):
@@ -319,78 +251,83 @@ class Veo3VideoGenerationNode(VeoVideoGenerationNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="Veo3VideoGenerationNode",
             display_name="Google Veo 3 Video Generation",
             category="api node/video/Veo",
             description="Generates videos from text prompts using Google's Veo 3 API",
             inputs=[
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Text description of the video",
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=["16:9", "9:16"],
                     default="16:9",
                     tooltip="Aspect ratio of the output video",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="",
                     tooltip="Negative text prompt to guide what to avoid in the video",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "duration_seconds",
                     default=8,
                     min=8,
                     max=8,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Duration of the output video in seconds (Veo 3 only supports 8 seconds)",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "enhance_prompt",
                     default=True,
                     tooltip="Whether to enhance the prompt with AI assistance",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "person_generation",
                     options=["ALLOW", "BLOCK"],
                     default="ALLOW",
                     tooltip="Whether to allow generating people in the video",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=0xFFFFFFFF,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed for video generation (0 for random)",
                     optional=True,
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     tooltip="Optional reference image to guide video generation",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
-                    options=["veo-3.0-generate-001", "veo-3.0-fast-generate-001"],
+                    options=[
+                        "veo-3.1-generate",
+                        "veo-3.1-fast-generate",
+                        "veo-3.0-generate-001",
+                        "veo-3.0-fast-generate-001",
+                    ],
                     default="veo-3.0-generate-001",
                     tooltip="Veo 3 model to use for video generation",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "generate_audio",
                     default=False,
                     tooltip="Generate audio for the video. Supported by all Veo 3 models.",
@@ -398,12 +335,12 @@ class Veo3VideoGenerationNode(VeoVideoGenerationNode):
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -411,11 +348,12 @@ class Veo3VideoGenerationNode(VeoVideoGenerationNode):
 
 class VeoExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             VeoVideoGenerationNode,
             Veo3VideoGenerationNode,
         ]
 
+
 async def comfy_entrypoint() -> VeoExtension:
     return VeoExtension()

comfy_api_nodes/nodes_vidu.py

@@ -1,27 +1,23 @@
 import logging
 from enum import Enum
-from typing import Any, Callable, Optional, Literal, TypeVar
-from typing_extensions import override
+from typing import Literal, Optional, TypeVar
 
 import torch
 from pydantic import BaseModel, Field
+from typing_extensions import override
 
-from comfy_api.latest import ComfyExtension, io as comfy_io
-from comfy_api_nodes.util.validation_utils import (
-    validate_aspect_ratio_closeness,
-    validate_image_dimensions,
-    validate_image_aspect_ratio_range,
-    get_number_of_images,
-)
-from comfy_api_nodes.apis.client import (
+from comfy_api.latest import IO, ComfyExtension
+from comfy_api_nodes.util import (
     ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-    EmptyRequest,
+    download_url_to_video_output,
+    get_number_of_images,
+    poll_op,
+    sync_op,
+    upload_images_to_comfyapi,
+    validate_image_aspect_ratio,
+    validate_image_dimensions,
+    validate_images_aspect_ratio_closeness,
 )
-from comfy_api_nodes.apinode_utils import download_url_to_video_output, upload_images_to_comfyapi
-
 
 VIDU_TEXT_TO_VIDEO = "/proxy/vidu/text2video"
 VIDU_IMAGE_TO_VIDEO = "/proxy/vidu/img2video"
@@ -31,8 +27,9 @@ VIDU_GET_GENERATION_STATUS = "/proxy/vidu/tasks/%s/creations"
 
 R = TypeVar("R")
 
+
 class VideoModelName(str, Enum):
-    vidu_q1 = 'viduq1'
+    vidu_q1 = "viduq1"
 
 
 class AspectRatio(str, Enum):
@@ -63,17 +60,9 @@ class TaskCreationRequest(BaseModel):
     images: Optional[list[str]] = Field(None, description="Base64 encoded string or image URL")
 
 
-class TaskStatus(str, Enum):
-    created = "created"
-    queueing = "queueing"
-    processing = "processing"
-    success = "success"
-    failed = "failed"
-
-
 class TaskCreationResponse(BaseModel):
     task_id: str = Field(...)
-    state: TaskStatus = Field(...)
+    state: str = Field(...)
     created_at: str = Field(...)
     code: Optional[int] = Field(None, description="Error code")
 
@@ -85,32 +74,11 @@ class TaskResult(BaseModel):
 
 
 class TaskStatusResponse(BaseModel):
-    state: TaskStatus = Field(...)
+    state: str = Field(...)
     err_code: Optional[str] = Field(None)
     creations: list[TaskResult] = Field(..., description="Generated results")
 
 
-async def poll_until_finished(
-    auth_kwargs: dict[str, str],
-    api_endpoint: ApiEndpoint[Any, R],
-    result_url_extractor: Optional[Callable[[R], str]] = None,
-    estimated_duration: Optional[int] = None,
-    node_id: Optional[str] = None,
-) -> R:
-    return await PollingOperation(
-        poll_endpoint=api_endpoint,
-        completed_statuses=[TaskStatus.success.value],
-        failed_statuses=[TaskStatus.failed.value],
-        status_extractor=lambda response: response.state.value,
-        auth_kwargs=auth_kwargs,
-        result_url_extractor=result_url_extractor,
-        estimated_duration=estimated_duration,
-        node_id=node_id,
-        poll_interval=16.0,
-        max_poll_attempts=256,
-    ).execute()
-
-
 def get_video_url_from_response(response) -> Optional[str]:
     if response.creations:
         return response.creations[0].url
@@ -127,97 +95,87 @@ def get_video_from_response(response) -> TaskResult:
 
 
 async def execute_task(
+    cls: type[IO.ComfyNode],
     vidu_endpoint: str,
-    auth_kwargs: Optional[dict[str, str]],
     payload: TaskCreationRequest,
     estimated_duration: int,
-    node_id: str,
 ) -> R:
-    response = await SynchronousOperation(
-        endpoint=ApiEndpoint(
-            path=vidu_endpoint,
-            method=HttpMethod.POST,
-            request_model=TaskCreationRequest,
-            response_model=TaskCreationResponse,
-        ),
-        request=payload,
-        auth_kwargs=auth_kwargs,
-    ).execute()
-    if response.state == TaskStatus.failed:
+    response = await sync_op(
+        cls,
+        endpoint=ApiEndpoint(path=vidu_endpoint, method="POST"),
+        response_model=TaskCreationResponse,
+        data=payload,
+    )
+    if response.state == "failed":
         error_msg = f"Vidu request failed. Code: {response.code}"
         logging.error(error_msg)
         raise RuntimeError(error_msg)
-    return await poll_until_finished(
-        auth_kwargs,
-        ApiEndpoint(
-            path=VIDU_GET_GENERATION_STATUS % response.task_id,
-            method=HttpMethod.GET,
-            request_model=EmptyRequest,
-            response_model=TaskStatusResponse,
-        ),
-        result_url_extractor=get_video_url_from_response,
+    return await poll_op(
+        cls,
+        ApiEndpoint(path=VIDU_GET_GENERATION_STATUS % response.task_id),
+        response_model=TaskStatusResponse,
+        status_extractor=lambda r: r.state,
         estimated_duration=estimated_duration,
-        node_id=node_id,
     )
 
 
-class ViduTextToVideoNode(comfy_io.ComfyNode):
+class ViduTextToVideoNode(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="ViduTextToVideoNode",
             display_name="Vidu Text To Video Generation",
             category="api node/video/Vidu",
             description="Generate video from text prompt",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=VideoModelName,
                     default=VideoModelName.vidu_q1,
                     tooltip="Model name",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     tooltip="A textual description for video generation",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "duration",
                     default=5,
                     min=5,
                     max=5,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Duration of the output video in seconds",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed for video generation (0 for random)",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=AspectRatio,
                     default=AspectRatio.r_16_9,
                     tooltip="The aspect ratio of the output video",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=Resolution,
                     default=Resolution.r_1080p,
                     tooltip="Supported values may vary by model & duration",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "movement_amplitude",
                     options=MovementAmplitude,
                     default=MovementAmplitude.auto,
@@ -226,12 +184,12 @@ class ViduTextToVideoNode(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -246,7 +204,7 @@ class ViduTextToVideoNode(comfy_io.ComfyNode):
         aspect_ratio: str,
         resolution: str,
         movement_amplitude: str,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         if not prompt:
             raise ValueError("The prompt field is required and cannot be empty.")
         payload = TaskCreationRequest(
@@ -258,70 +216,66 @@ class ViduTextToVideoNode(comfy_io.ComfyNode):
             resolution=resolution,
             movement_amplitude=movement_amplitude,
         )
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
-        results = await execute_task(VIDU_TEXT_TO_VIDEO, auth, payload, 320, cls.hidden.unique_id)
-        return comfy_io.NodeOutput(await download_url_to_video_output(get_video_from_response(results).url))
+        results = await execute_task(cls, VIDU_TEXT_TO_VIDEO, payload, 320)
+        return IO.NodeOutput(await download_url_to_video_output(get_video_from_response(results).url))
 
 
-class ViduImageToVideoNode(comfy_io.ComfyNode):
+class ViduImageToVideoNode(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="ViduImageToVideoNode",
             display_name="Vidu Image To Video Generation",
             category="api node/video/Vidu",
             description="Generate video from image and optional prompt",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=VideoModelName,
                     default=VideoModelName.vidu_q1,
                     tooltip="Model name",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     tooltip="An image to be used as the start frame of the generated video",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="A textual description for video generation",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "duration",
                     default=5,
                     min=5,
                     max=5,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Duration of the output video in seconds",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed for video generation (0 for random)",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=Resolution,
                     default=Resolution.r_1080p,
                     tooltip="Supported values may vary by model & duration",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "movement_amplitude",
                     options=MovementAmplitude,
                     default=MovementAmplitude.auto.value,
@@ -330,12 +284,12 @@ class ViduImageToVideoNode(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -350,10 +304,10 @@ class ViduImageToVideoNode(comfy_io.ComfyNode):
         seed: int,
         resolution: str,
         movement_amplitude: str,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         if get_number_of_images(image) > 1:
             raise ValueError("Only one input image is allowed.")
-        validate_image_aspect_ratio_range(image, (1, 4), (4, 1))
+        validate_image_aspect_ratio(image, (1, 4), (4, 1))
         payload = TaskCreationRequest(
             model_name=model,
             prompt=prompt,
@@ -362,81 +316,77 @@ class ViduImageToVideoNode(comfy_io.ComfyNode):
             resolution=resolution,
             movement_amplitude=movement_amplitude,
         )
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
         payload.images = await upload_images_to_comfyapi(
+            cls,
             image,
             max_images=1,
             mime_type="image/png",
-            auth_kwargs=auth,
         )
-        results = await execute_task(VIDU_IMAGE_TO_VIDEO, auth, payload, 120, cls.hidden.unique_id)
-        return comfy_io.NodeOutput(await download_url_to_video_output(get_video_from_response(results).url))
+        results = await execute_task(cls, VIDU_IMAGE_TO_VIDEO, payload, 120)
+        return IO.NodeOutput(await download_url_to_video_output(get_video_from_response(results).url))
 
 
-class ViduReferenceVideoNode(comfy_io.ComfyNode):
+class ViduReferenceVideoNode(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="ViduReferenceVideoNode",
             display_name="Vidu Reference To Video Generation",
             category="api node/video/Vidu",
             description="Generate video from multiple images and prompt",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=VideoModelName,
                     default=VideoModelName.vidu_q1,
                     tooltip="Model name",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "images",
                     tooltip="Images to use as references to generate a video with consistent subjects (max 7 images).",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     tooltip="A textual description for video generation",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "duration",
                     default=5,
                     min=5,
                     max=5,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Duration of the output video in seconds",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed for video generation (0 for random)",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "aspect_ratio",
                     options=AspectRatio,
                     default=AspectRatio.r_16_9,
                     tooltip="The aspect ratio of the output video",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=[model.value for model in Resolution],
                     default=Resolution.r_1080p.value,
                     tooltip="Supported values may vary by model & duration",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "movement_amplitude",
                     options=[model.value for model in MovementAmplitude],
                     default=MovementAmplitude.auto.value,
@@ -445,12 +395,12 @@ class ViduReferenceVideoNode(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -466,14 +416,14 @@ class ViduReferenceVideoNode(comfy_io.ComfyNode):
         aspect_ratio: str,
         resolution: str,
         movement_amplitude: str,
-    ) -> comfy_io.NodeOutput:
+    ) -> IO.NodeOutput:
         if not prompt:
             raise ValueError("The prompt field is required and cannot be empty.")
         a = get_number_of_images(images)
         if a > 7:
             raise ValueError("Too many images, maximum allowed is 7.")
         for image in images:
-            validate_image_aspect_ratio_range(image, (1, 4), (4, 1))
+            validate_image_aspect_ratio(image, (1, 4), (4, 1))
             validate_image_dimensions(image, min_width=128, min_height=128)
         payload = TaskCreationRequest(
             model_name=model,
@@ -484,79 +434,75 @@ class ViduReferenceVideoNode(comfy_io.ComfyNode):
             resolution=resolution,
             movement_amplitude=movement_amplitude,
         )
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
         payload.images = await upload_images_to_comfyapi(
+            cls,
             images,
             max_images=7,
             mime_type="image/png",
-            auth_kwargs=auth,
         )
-        results = await execute_task(VIDU_REFERENCE_VIDEO, auth, payload, 120, cls.hidden.unique_id)
-        return comfy_io.NodeOutput(await download_url_to_video_output(get_video_from_response(results).url))
+        results = await execute_task(cls, VIDU_REFERENCE_VIDEO, payload, 120)
+        return IO.NodeOutput(await download_url_to_video_output(get_video_from_response(results).url))
 
 
-class ViduStartEndToVideoNode(comfy_io.ComfyNode):
+class ViduStartEndToVideoNode(IO.ComfyNode):
 
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="ViduStartEndToVideoNode",
             display_name="Vidu Start End To Video Generation",
             category="api node/video/Vidu",
             description="Generate a video from start and end frames and a prompt",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=[model.value for model in VideoModelName],
                     default=VideoModelName.vidu_q1.value,
                     tooltip="Model name",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "first_frame",
                     tooltip="Start frame",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "end_frame",
                     tooltip="End frame",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     tooltip="A textual description for video generation",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "duration",
                     default=5,
                     min=5,
                     max=5,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Duration of the output video in seconds",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed for video generation (0 for random)",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=[model.value for model in Resolution],
                     default=Resolution.r_1080p.value,
                     tooltip="Supported values may vary by model & duration",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "movement_amplitude",
                     options=[model.value for model in MovementAmplitude],
                     default=MovementAmplitude.auto.value,
@@ -565,12 +511,12 @@ class ViduStartEndToVideoNode(comfy_io.ComfyNode):
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -586,8 +532,8 @@ class ViduStartEndToVideoNode(comfy_io.ComfyNode):
         seed: int,
         resolution: str,
         movement_amplitude: str,
-    ) -> comfy_io.NodeOutput:
-        validate_aspect_ratio_closeness(first_frame, end_frame, min_rel=0.8, max_rel=1.25, strict=False)
+    ) -> IO.NodeOutput:
+        validate_images_aspect_ratio_closeness(first_frame, end_frame, min_rel=0.8, max_rel=1.25, strict=False)
         payload = TaskCreationRequest(
             model_name=model,
             prompt=prompt,
@@ -596,21 +542,17 @@ class ViduStartEndToVideoNode(comfy_io.ComfyNode):
             resolution=resolution,
             movement_amplitude=movement_amplitude,
         )
-        auth = {
-            "auth_token": cls.hidden.auth_token_comfy_org,
-            "comfy_api_key": cls.hidden.api_key_comfy_org,
-        }
         payload.images = [
-            (await upload_images_to_comfyapi(frame, max_images=1, mime_type="image/png", auth_kwargs=auth))[0]
+            (await upload_images_to_comfyapi(cls, frame, max_images=1, mime_type="image/png"))[0]
             for frame in (first_frame, end_frame)
         ]
-        results = await execute_task(VIDU_START_END_VIDEO, auth, payload, 96, cls.hidden.unique_id)
-        return comfy_io.NodeOutput(await download_url_to_video_output(get_video_from_response(results).url))
+        results = await execute_task(cls, VIDU_START_END_VIDEO, payload, 96)
+        return IO.NodeOutput(await download_url_to_video_output(get_video_from_response(results).url))
 
 
 class ViduExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             ViduTextToVideoNode,
             ViduImageToVideoNode,
@@ -618,5 +560,6 @@ class ViduExtension(ComfyExtension):
             ViduStartEndToVideoNode,
         ]
 
+
 async def comfy_entrypoint() -> ViduExtension:
     return ViduExtension()

comfy_api_nodes/nodes_wan.py

@@ -1,28 +1,24 @@
 import re
-from typing import Optional, Type, Union
-from typing_extensions import override
+from typing import Optional
 
 import torch
 from pydantic import BaseModel, Field
-from comfy_api.latest import ComfyExtension, Input, io as comfy_io
-from comfy_api_nodes.apis.client import (
-    ApiEndpoint,
-    HttpMethod,
-    SynchronousOperation,
-    PollingOperation,
-    EmptyRequest,
-    R,
-    T,
-)
-from comfy_api_nodes.util.validation_utils import get_number_of_images, validate_audio_duration
+from typing_extensions import override
 
-from comfy_api_nodes.apinode_utils import (
+from comfy_api.latest import IO, ComfyExtension, Input
+from comfy_api_nodes.util import (
+    ApiEndpoint,
+    audio_to_base64_string,
     download_url_to_image_tensor,
     download_url_to_video_output,
+    get_number_of_images,
+    poll_op,
+    sync_op,
     tensor_to_base64_string,
-    audio_to_base64_string,
+    validate_audio_duration,
 )
 
+
 class Text2ImageInputField(BaseModel):
     prompt: str = Field(...)
     negative_prompt: Optional[str] = Field(None)
@@ -146,84 +142,38 @@ class VideoTaskStatusResponse(BaseModel):
     request_id: str = Field(...)
 
 
-RES_IN_PARENS = re.compile(r'\((\d+)\s*[x×]\s*(\d+)\)')
+RES_IN_PARENS = re.compile(r"\((\d+)\s*[x×]\s*(\d+)\)")
 
 
-async def process_task(
-    auth_kwargs: dict[str, str],
-    url: str,
-    request_model: Type[T],
-    response_model: Type[R],
-    payload: Union[
-        Text2ImageTaskCreationRequest,
-        Image2ImageTaskCreationRequest,
-        Text2VideoTaskCreationRequest,
-        Image2VideoTaskCreationRequest,
-    ],
-    node_id: str,
-    estimated_duration: int,
-    poll_interval: int,
-) -> Type[R]:
-    initial_response = await SynchronousOperation(
-        endpoint=ApiEndpoint(
-            path=url,
-            method=HttpMethod.POST,
-            request_model=request_model,
-            response_model=TaskCreationResponse,
-        ),
-        request=payload,
-        auth_kwargs=auth_kwargs,
-    ).execute()
-
-    if not initial_response.output:
-        raise Exception(f"Unknown error occurred: {initial_response.code} - {initial_response.message}")
-
-    return await PollingOperation(
-        poll_endpoint=ApiEndpoint(
-            path=f"/proxy/wan/api/v1/tasks/{initial_response.output.task_id}",
-            method=HttpMethod.GET,
-            request_model=EmptyRequest,
-            response_model=response_model,
-        ),
-        completed_statuses=["SUCCEEDED"],
-        failed_statuses=["FAILED", "CANCELED", "UNKNOWN"],
-        status_extractor=lambda x: x.output.task_status,
-        estimated_duration=estimated_duration,
-        poll_interval=poll_interval,
-        node_id=node_id,
-        auth_kwargs=auth_kwargs,
-    ).execute()
-
-
-class WanTextToImageApi(comfy_io.ComfyNode):
+class WanTextToImageApi(IO.ComfyNode):
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="WanTextToImageApi",
             display_name="Wan Text to Image",
             category="api node/image/Wan",
             description="Generates image based on text prompt.",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["wan2.5-t2i-preview"],
                     default="wan2.5-t2i-preview",
                     tooltip="Model to use.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt used to describe the elements and visual features, supports English/Chinese.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="",
                     tooltip="Negative text prompt to guide what to avoid.",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "width",
                     default=1024,
                     min=768,
@@ -231,7 +181,7 @@ class WanTextToImageApi(comfy_io.ComfyNode):
                     step=32,
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "height",
                     default=1024,
                     min=768,
@@ -239,37 +189,37 @@ class WanTextToImageApi(comfy_io.ComfyNode):
                     step=32,
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed to use for generation.",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "prompt_extend",
                     default=True,
                     tooltip="Whether to enhance the prompt with AI assistance.",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "watermark",
                     default=True,
-                    tooltip="Whether to add an \"AI generated\" watermark to the result.",
+                    tooltip='Whether to add an "AI generated" watermark to the result.',
                     optional=True,
                 ),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -286,59 +236,61 @@ class WanTextToImageApi(comfy_io.ComfyNode):
         prompt_extend: bool = True,
         watermark: bool = True,
     ):
-        payload = Text2ImageTaskCreationRequest(
-            model=model,
-            input=Text2ImageInputField(prompt=prompt, negative_prompt=negative_prompt),
-            parameters=Txt2ImageParametersField(
-                size=f"{width}*{height}",
-                seed=seed,
-                prompt_extend=prompt_extend,
-                watermark=watermark,
+        initial_response = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/wan/api/v1/services/aigc/text2image/image-synthesis", method="POST"),
+            response_model=TaskCreationResponse,
+            data=Text2ImageTaskCreationRequest(
+                model=model,
+                input=Text2ImageInputField(prompt=prompt, negative_prompt=negative_prompt),
+                parameters=Txt2ImageParametersField(
+                    size=f"{width}*{height}",
+                    seed=seed,
+                    prompt_extend=prompt_extend,
+                    watermark=watermark,
+                ),
             ),
         )
-        response = await process_task(
-            {
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
-            "/proxy/wan/api/v1/services/aigc/text2image/image-synthesis",
-            request_model=Text2ImageTaskCreationRequest,
+        if not initial_response.output:
+            raise Exception(f"Unknown error occurred: {initial_response.code} - {initial_response.message}")
+        response = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/wan/api/v1/tasks/{initial_response.output.task_id}"),
             response_model=ImageTaskStatusResponse,
-            payload=payload,
-            node_id=cls.hidden.unique_id,
+            status_extractor=lambda x: x.output.task_status,
             estimated_duration=9,
             poll_interval=3,
         )
-        return comfy_io.NodeOutput(await download_url_to_image_tensor(str(response.output.results[0].url)))
+        return IO.NodeOutput(await download_url_to_image_tensor(str(response.output.results[0].url)))
 
 
-class WanImageToImageApi(comfy_io.ComfyNode):
+class WanImageToImageApi(IO.ComfyNode):
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="WanImageToImageApi",
             display_name="Wan Image to Image",
             category="api node/image/Wan",
             description="Generates an image from one or two input images and a text prompt. "
-                        "The output image is currently fixed at 1.6 MP; its aspect ratio matches the input image(s).",
+            "The output image is currently fixed at 1.6 MP; its aspect ratio matches the input image(s).",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["wan2.5-i2i-preview"],
                     default="wan2.5-i2i-preview",
                     tooltip="Model to use.",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                     tooltip="Single-image editing or multi-image fusion, maximum 2 images.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt used to describe the elements and visual features, supports English/Chinese.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="",
@@ -346,7 +298,7 @@ class WanImageToImageApi(comfy_io.ComfyNode):
                     optional=True,
                 ),
                 # redo this later as an optional combo of recommended resolutions
-                # comfy_io.Int.Input(
+                # IO.Int.Input(
                 #     "width",
                 #     default=1280,
                 #     min=384,
@@ -354,7 +306,7 @@ class WanImageToImageApi(comfy_io.ComfyNode):
                 #     step=16,
                 #     optional=True,
                 # ),
-                # comfy_io.Int.Input(
+                # IO.Int.Input(
                 #     "height",
                 #     default=1280,
                 #     min=384,
@@ -362,31 +314,31 @@ class WanImageToImageApi(comfy_io.ComfyNode):
                 #     step=16,
                 #     optional=True,
                 # ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed to use for generation.",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "watermark",
                     default=True,
-                    tooltip="Whether to add an \"AI generated\" watermark to the result.",
+                    tooltip='Whether to add an "AI generated" watermark to the result.',
                     optional=True,
                 ),
             ],
             outputs=[
-                comfy_io.Image.Output(),
+                IO.Image.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -408,61 +360,63 @@ class WanImageToImageApi(comfy_io.ComfyNode):
             raise ValueError(f"Expected 1 or 2 input images, got {n_images}.")
         images = []
         for i in image:
-            images.append("data:image/png;base64," + tensor_to_base64_string(i, total_pixels=4096*4096))
-        payload = Image2ImageTaskCreationRequest(
-            model=model,
-            input=Image2ImageInputField(prompt=prompt, negative_prompt=negative_prompt, images=images),
-            parameters=Image2ImageParametersField(
-                # size=f"{width}*{height}",
-                seed=seed,
-                watermark=watermark,
+            images.append("data:image/png;base64," + tensor_to_base64_string(i, total_pixels=4096 * 4096))
+        initial_response = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/wan/api/v1/services/aigc/image2image/image-synthesis", method="POST"),
+            response_model=TaskCreationResponse,
+            data=Image2ImageTaskCreationRequest(
+                model=model,
+                input=Image2ImageInputField(prompt=prompt, negative_prompt=negative_prompt, images=images),
+                parameters=Image2ImageParametersField(
+                    # size=f"{width}*{height}",
+                    seed=seed,
+                    watermark=watermark,
+                ),
             ),
         )
-        response = await process_task(
-            {
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
-            "/proxy/wan/api/v1/services/aigc/image2image/image-synthesis",
-            request_model=Image2ImageTaskCreationRequest,
+        if not initial_response.output:
+            raise Exception(f"Unknown error occurred: {initial_response.code} - {initial_response.message}")
+        response = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/wan/api/v1/tasks/{initial_response.output.task_id}"),
             response_model=ImageTaskStatusResponse,
-            payload=payload,
-            node_id=cls.hidden.unique_id,
+            status_extractor=lambda x: x.output.task_status,
             estimated_duration=42,
-            poll_interval=3,
+            poll_interval=4,
         )
-        return comfy_io.NodeOutput(await download_url_to_image_tensor(str(response.output.results[0].url)))
+        return IO.NodeOutput(await download_url_to_image_tensor(str(response.output.results[0].url)))
 
 
-class WanTextToVideoApi(comfy_io.ComfyNode):
+class WanTextToVideoApi(IO.ComfyNode):
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="WanTextToVideoApi",
             display_name="Wan Text to Video",
             category="api node/video/Wan",
             description="Generates video based on text prompt.",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["wan2.5-t2v-preview"],
                     default="wan2.5-t2v-preview",
                     tooltip="Model to use.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt used to describe the elements and visual features, supports English/Chinese.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="",
                     tooltip="Negative text prompt to guide what to avoid.",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "size",
                     options=[
                         "480p: 1:1 (624x624)",
@@ -482,58 +436,58 @@ class WanTextToVideoApi(comfy_io.ComfyNode):
                     default="480p: 1:1 (624x624)",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "duration",
                     default=5,
                     min=5,
                     max=10,
                     step=5,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Available durations: 5 and 10 seconds",
                     optional=True,
                 ),
-                comfy_io.Audio.Input(
+                IO.Audio.Input(
                     "audio",
                     optional=True,
                     tooltip="Audio must contain a clear, loud voice, without extraneous noise, background music.",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed to use for generation.",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "generate_audio",
                     default=False,
                     optional=True,
                     tooltip="If there is no audio input, generate audio automatically.",
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "prompt_extend",
                     default=True,
                     tooltip="Whether to enhance the prompt with AI assistance.",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "watermark",
                     default=True,
-                    tooltip="Whether to add an \"AI generated\" watermark to the result.",
+                    tooltip='Whether to add an "AI generated" watermark to the result.',
                     optional=True,
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -557,66 +511,69 @@ class WanTextToVideoApi(comfy_io.ComfyNode):
         if audio is not None:
             validate_audio_duration(audio, 3.0, 29.0)
             audio_url = "data:audio/mp3;base64," + audio_to_base64_string(audio, "mp3", "libmp3lame")
-        payload = Text2VideoTaskCreationRequest(
-            model=model,
-            input=Text2VideoInputField(prompt=prompt, negative_prompt=negative_prompt, audio_url=audio_url),
-            parameters=Text2VideoParametersField(
-                size=f"{width}*{height}",
-                duration=duration,
-                seed=seed,
-                audio=generate_audio,
-                prompt_extend=prompt_extend,
-                watermark=watermark,
+
+        initial_response = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/wan/api/v1/services/aigc/video-generation/video-synthesis", method="POST"),
+            response_model=TaskCreationResponse,
+            data=Text2VideoTaskCreationRequest(
+                model=model,
+                input=Text2VideoInputField(prompt=prompt, negative_prompt=negative_prompt, audio_url=audio_url),
+                parameters=Text2VideoParametersField(
+                    size=f"{width}*{height}",
+                    duration=duration,
+                    seed=seed,
+                    audio=generate_audio,
+                    prompt_extend=prompt_extend,
+                    watermark=watermark,
+                ),
             ),
         )
-        response = await process_task(
-            {
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
-            "/proxy/wan/api/v1/services/aigc/video-generation/video-synthesis",
-            request_model=Text2VideoTaskCreationRequest,
+        if not initial_response.output:
+            raise Exception(f"Unknown error occurred: {initial_response.code} - {initial_response.message}")
+        response = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/wan/api/v1/tasks/{initial_response.output.task_id}"),
             response_model=VideoTaskStatusResponse,
-            payload=payload,
-            node_id=cls.hidden.unique_id,
+            status_extractor=lambda x: x.output.task_status,
             estimated_duration=120 * int(duration / 5),
             poll_interval=6,
         )
-        return comfy_io.NodeOutput(await download_url_to_video_output(response.output.video_url))
+        return IO.NodeOutput(await download_url_to_video_output(response.output.video_url))
 
 
-class WanImageToVideoApi(comfy_io.ComfyNode):
+class WanImageToVideoApi(IO.ComfyNode):
     @classmethod
     def define_schema(cls):
-        return comfy_io.Schema(
+        return IO.Schema(
             node_id="WanImageToVideoApi",
             display_name="Wan Image to Video",
             category="api node/video/Wan",
             description="Generates video based on the first frame and text prompt.",
             inputs=[
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "model",
                     options=["wan2.5-i2v-preview"],
                     default="wan2.5-i2v-preview",
                     tooltip="Model to use.",
                 ),
-                comfy_io.Image.Input(
+                IO.Image.Input(
                     "image",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "prompt",
                     multiline=True,
                     default="",
                     tooltip="Prompt used to describe the elements and visual features, supports English/Chinese.",
                 ),
-                comfy_io.String.Input(
+                IO.String.Input(
                     "negative_prompt",
                     multiline=True,
                     default="",
                     tooltip="Negative text prompt to guide what to avoid.",
                     optional=True,
                 ),
-                comfy_io.Combo.Input(
+                IO.Combo.Input(
                     "resolution",
                     options=[
                         "480P",
@@ -626,58 +583,58 @@ class WanImageToVideoApi(comfy_io.ComfyNode):
                     default="480P",
                     optional=True,
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "duration",
                     default=5,
                     min=5,
                     max=10,
                     step=5,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     tooltip="Available durations: 5 and 10 seconds",
                     optional=True,
                 ),
-                comfy_io.Audio.Input(
+                IO.Audio.Input(
                     "audio",
                     optional=True,
                     tooltip="Audio must contain a clear, loud voice, without extraneous noise, background music.",
                 ),
-                comfy_io.Int.Input(
+                IO.Int.Input(
                     "seed",
                     default=0,
                     min=0,
                     max=2147483647,
                     step=1,
-                    display_mode=comfy_io.NumberDisplay.number,
+                    display_mode=IO.NumberDisplay.number,
                     control_after_generate=True,
                     tooltip="Seed to use for generation.",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "generate_audio",
                     default=False,
                     optional=True,
                     tooltip="If there is no audio input, generate audio automatically.",
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "prompt_extend",
                     default=True,
                     tooltip="Whether to enhance the prompt with AI assistance.",
                     optional=True,
                 ),
-                comfy_io.Boolean.Input(
+                IO.Boolean.Input(
                     "watermark",
                     default=True,
-                    tooltip="Whether to add an \"AI generated\" watermark to the result.",
+                    tooltip='Whether to add an "AI generated" watermark to the result.',
                     optional=True,
                 ),
             ],
             outputs=[
-                comfy_io.Video.Output(),
+                IO.Video.Output(),
             ],
             hidden=[
-                comfy_io.Hidden.auth_token_comfy_org,
-                comfy_io.Hidden.api_key_comfy_org,
-                comfy_io.Hidden.unique_id,
+                IO.Hidden.auth_token_comfy_org,
+                IO.Hidden.api_key_comfy_org,
+                IO.Hidden.unique_id,
             ],
             is_api_node=True,
         )
@@ -699,44 +656,46 @@ class WanImageToVideoApi(comfy_io.ComfyNode):
     ):
         if get_number_of_images(image) != 1:
             raise ValueError("Exactly one input image is required.")
-        image_url = "data:image/png;base64," + tensor_to_base64_string(image, total_pixels=2000*2000)
+        image_url = "data:image/png;base64," + tensor_to_base64_string(image, total_pixels=2000 * 2000)
         audio_url = None
         if audio is not None:
             validate_audio_duration(audio, 3.0, 29.0)
             audio_url = "data:audio/mp3;base64," + audio_to_base64_string(audio, "mp3", "libmp3lame")
-        payload = Image2VideoTaskCreationRequest(
-            model=model,
-            input=Image2VideoInputField(
-                prompt=prompt, negative_prompt=negative_prompt, img_url=image_url, audio_url=audio_url
-            ),
-            parameters=Image2VideoParametersField(
-                resolution=resolution,
-                duration=duration,
-                seed=seed,
-                audio=generate_audio,
-                prompt_extend=prompt_extend,
-                watermark=watermark,
+        initial_response = await sync_op(
+            cls,
+            ApiEndpoint(path="/proxy/wan/api/v1/services/aigc/video-generation/video-synthesis", method="POST"),
+            response_model=TaskCreationResponse,
+            data=Image2VideoTaskCreationRequest(
+                model=model,
+                input=Image2VideoInputField(
+                    prompt=prompt, negative_prompt=negative_prompt, img_url=image_url, audio_url=audio_url
+                ),
+                parameters=Image2VideoParametersField(
+                    resolution=resolution,
+                    duration=duration,
+                    seed=seed,
+                    audio=generate_audio,
+                    prompt_extend=prompt_extend,
+                    watermark=watermark,
+                ),
             ),
         )
-        response = await process_task(
-            {
-                "auth_token": cls.hidden.auth_token_comfy_org,
-                "comfy_api_key": cls.hidden.api_key_comfy_org,
-            },
-            "/proxy/wan/api/v1/services/aigc/video-generation/video-synthesis",
-            request_model=Image2VideoTaskCreationRequest,
+        if not initial_response.output:
+            raise Exception(f"Unknown error occurred: {initial_response.code} - {initial_response.message}")
+        response = await poll_op(
+            cls,
+            ApiEndpoint(path=f"/proxy/wan/api/v1/tasks/{initial_response.output.task_id}"),
             response_model=VideoTaskStatusResponse,
-            payload=payload,
-            node_id=cls.hidden.unique_id,
+            status_extractor=lambda x: x.output.task_status,
             estimated_duration=120 * int(duration / 5),
             poll_interval=6,
         )
-        return comfy_io.NodeOutput(await download_url_to_video_output(response.output.video_url))
+        return IO.NodeOutput(await download_url_to_video_output(response.output.video_url))
 
 
 class WanApiExtension(ComfyExtension):
     @override
-    async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
         return [
             WanTextToImageApi,
             WanImageToImageApi,

comfy_api_nodes/util/__init__.py

@@ -0,0 +1,97 @@
+from ._helpers import get_fs_object_size
+from .client import (
+    ApiEndpoint,
+    poll_op,
+    poll_op_raw,
+    sync_op,
+    sync_op_raw,
+)
+from .conversions import (
+    audio_bytes_to_audio_input,
+    audio_input_to_mp3,
+    audio_to_base64_string,
+    bytesio_to_image_tensor,
+    downscale_image_tensor,
+    image_tensor_pair_to_batch,
+    pil_to_bytesio,
+    resize_mask_to_image,
+    tensor_to_base64_string,
+    tensor_to_bytesio,
+    tensor_to_pil,
+    text_filepath_to_base64_string,
+    text_filepath_to_data_uri,
+    trim_video,
+    video_to_base64_string,
+)
+from .download_helpers import (
+    download_url_as_bytesio,
+    download_url_to_bytesio,
+    download_url_to_image_tensor,
+    download_url_to_video_output,
+)
+from .upload_helpers import (
+    upload_audio_to_comfyapi,
+    upload_file_to_comfyapi,
+    upload_images_to_comfyapi,
+    upload_video_to_comfyapi,
+)
+from .validation_utils import (
+    get_number_of_images,
+    validate_aspect_ratio_string,
+    validate_audio_duration,
+    validate_container_format_is_mp4,
+    validate_image_aspect_ratio,
+    validate_image_dimensions,
+    validate_images_aspect_ratio_closeness,
+    validate_string,
+    validate_video_dimensions,
+    validate_video_duration,
+)
+
+__all__ = [
+    # API client
+    "ApiEndpoint",
+    "poll_op",
+    "poll_op_raw",
+    "sync_op",
+    "sync_op_raw",
+    # Upload helpers
+    "upload_audio_to_comfyapi",
+    "upload_file_to_comfyapi",
+    "upload_images_to_comfyapi",
+    "upload_video_to_comfyapi",
+    # Download helpers
+    "download_url_as_bytesio",
+    "download_url_to_bytesio",
+    "download_url_to_image_tensor",
+    "download_url_to_video_output",
+    # Conversions
+    "audio_bytes_to_audio_input",
+    "audio_input_to_mp3",
+    "audio_to_base64_string",
+    "bytesio_to_image_tensor",
+    "downscale_image_tensor",
+    "image_tensor_pair_to_batch",
+    "pil_to_bytesio",
+    "resize_mask_to_image",
+    "tensor_to_base64_string",
+    "tensor_to_bytesio",
+    "tensor_to_pil",
+    "text_filepath_to_base64_string",
+    "text_filepath_to_data_uri",
+    "trim_video",
+    "video_to_base64_string",
+    # Validation utilities
+    "get_number_of_images",
+    "validate_aspect_ratio_string",
+    "validate_audio_duration",
+    "validate_container_format_is_mp4",
+    "validate_image_aspect_ratio",
+    "validate_image_dimensions",
+    "validate_images_aspect_ratio_closeness",
+    "validate_string",
+    "validate_video_dimensions",
+    "validate_video_duration",
+    # Misc functions
+    "get_fs_object_size",
+]

comfy_api_nodes/util/_helpers.py

@@ -0,0 +1,71 @@
+import asyncio
+import contextlib
+import os
+import time
+from io import BytesIO
+from typing import Callable, Optional, Union
+
+from comfy.cli_args import args
+from comfy.model_management import processing_interrupted
+from comfy_api.latest import IO
+
+from .common_exceptions import ProcessingInterrupted
+
+
+def is_processing_interrupted() -> bool:
+    """Return True if user/runtime requested interruption."""
+    return processing_interrupted()
+
+
+def get_node_id(node_cls: type[IO.ComfyNode]) -> str:
+    return node_cls.hidden.unique_id
+
+
+def get_auth_header(node_cls: type[IO.ComfyNode]) -> dict[str, str]:
+    if node_cls.hidden.auth_token_comfy_org:
+        return {"Authorization": f"Bearer {node_cls.hidden.auth_token_comfy_org}"}
+    if node_cls.hidden.api_key_comfy_org:
+        return {"X-API-KEY": node_cls.hidden.api_key_comfy_org}
+    return {}
+
+
+def default_base_url() -> str:
+    return getattr(args, "comfy_api_base", "https://api.comfy.org")
+
+
+async def sleep_with_interrupt(
+    seconds: float,
+    node_cls: Optional[type[IO.ComfyNode]],
+    label: Optional[str] = None,
+    start_ts: Optional[float] = None,
+    estimated_total: Optional[int] = None,
+    *,
+    display_callback: Optional[Callable[[type[IO.ComfyNode], str, int, Optional[int]], None]] = None,
+):
+    """
+    Sleep in 1s slices while:
+      - Checking for interruption (raises ProcessingInterrupted).
+      - Optionally emitting time progress via display_callback (if provided).
+    """
+    end = time.monotonic() + seconds
+    while True:
+        if is_processing_interrupted():
+            raise ProcessingInterrupted("Task cancelled")
+        now = time.monotonic()
+        if start_ts is not None and label and display_callback:
+            with contextlib.suppress(Exception):
+                display_callback(node_cls, label, int(now - start_ts), estimated_total)
+        if now >= end:
+            break
+        await asyncio.sleep(min(1.0, end - now))
+
+
+def mimetype_to_extension(mime_type: str) -> str:
+    """Converts a MIME type to a file extension."""
+    return mime_type.split("/")[-1].lower()
+
+
+def get_fs_object_size(path_or_object: Union[str, BytesIO]) -> int:
+    if isinstance(path_or_object, str):
+        return os.path.getsize(path_or_object)
+    return len(path_or_object.getvalue())

comfy_api_nodes/util/client.py

@@ -0,0 +1,936 @@
+import asyncio
+import contextlib
+import json
+import logging
+import time
+import uuid
+from dataclasses import dataclass
+from enum import Enum
+from io import BytesIO
+from typing import Any, Callable, Iterable, Literal, Optional, Type, TypeVar, Union
+from urllib.parse import urljoin, urlparse
+
+import aiohttp
+from aiohttp.client_exceptions import ClientError, ContentTypeError
+from pydantic import BaseModel
+
+from comfy import utils
+from comfy_api.latest import IO
+from comfy_api_nodes.apis import request_logger
+from server import PromptServer
+
+from ._helpers import (
+    default_base_url,
+    get_auth_header,
+    get_node_id,
+    is_processing_interrupted,
+    sleep_with_interrupt,
+)
+from .common_exceptions import ApiServerError, LocalNetworkError, ProcessingInterrupted
+
+M = TypeVar("M", bound=BaseModel)
+
+
+class ApiEndpoint:
+    def __init__(
+        self,
+        path: str,
+        method: Literal["GET", "POST", "PUT", "DELETE", "PATCH"] = "GET",
+        *,
+        query_params: Optional[dict[str, Any]] = None,
+        headers: Optional[dict[str, str]] = None,
+    ):
+        self.path = path
+        self.method = method
+        self.query_params = query_params or {}
+        self.headers = headers or {}
+
+
+@dataclass
+class _RequestConfig:
+    node_cls: type[IO.ComfyNode]
+    endpoint: ApiEndpoint
+    timeout: float
+    content_type: str
+    data: Optional[dict[str, Any]]
+    files: Optional[Union[dict[str, Any], list[tuple[str, Any]]]]
+    multipart_parser: Optional[Callable]
+    max_retries: int
+    retry_delay: float
+    retry_backoff: float
+    wait_label: str = "Waiting"
+    monitor_progress: bool = True
+    estimated_total: Optional[int] = None
+    final_label_on_success: Optional[str] = "Completed"
+    progress_origin_ts: Optional[float] = None
+
+
+@dataclass
+class _PollUIState:
+    started: float
+    status_label: str = "Queued"
+    is_queued: bool = True
+    price: Optional[float] = None
+    estimated_duration: Optional[int] = None
+    base_processing_elapsed: float = 0.0  # sum of completed active intervals
+    active_since: Optional[float] = None  # start time of current active interval (None if queued)
+
+
+_RETRY_STATUS = {408, 429, 500, 502, 503, 504}
+COMPLETED_STATUSES = ["succeeded", "succeed", "success", "completed", "finished"]
+FAILED_STATUSES = ["cancelled", "canceled", "fail", "failed", "error"]
+QUEUED_STATUSES = ["created", "queued", "queueing", "submitted"]
+
+
+async def sync_op(
+    cls: type[IO.ComfyNode],
+    endpoint: ApiEndpoint,
+    *,
+    response_model: Type[M],
+    data: Optional[BaseModel] = None,
+    files: Optional[Union[dict[str, Any], list[tuple[str, Any]]]] = None,
+    content_type: str = "application/json",
+    timeout: float = 3600.0,
+    multipart_parser: Optional[Callable] = None,
+    max_retries: int = 3,
+    retry_delay: float = 1.0,
+    retry_backoff: float = 2.0,
+    wait_label: str = "Waiting for server",
+    estimated_duration: Optional[int] = None,
+    final_label_on_success: Optional[str] = "Completed",
+    progress_origin_ts: Optional[float] = None,
+    monitor_progress: bool = True,
+) -> M:
+    raw = await sync_op_raw(
+        cls,
+        endpoint,
+        data=data,
+        files=files,
+        content_type=content_type,
+        timeout=timeout,
+        multipart_parser=multipart_parser,
+        max_retries=max_retries,
+        retry_delay=retry_delay,
+        retry_backoff=retry_backoff,
+        wait_label=wait_label,
+        estimated_duration=estimated_duration,
+        as_binary=False,
+        final_label_on_success=final_label_on_success,
+        progress_origin_ts=progress_origin_ts,
+        monitor_progress=monitor_progress,
+    )
+    if not isinstance(raw, dict):
+        raise Exception("Expected JSON response to validate into a Pydantic model, got non-JSON (binary or text).")
+    return _validate_or_raise(response_model, raw)
+
+
+async def poll_op(
+    cls: type[IO.ComfyNode],
+    poll_endpoint: ApiEndpoint,
+    *,
+    response_model: Type[M],
+    status_extractor: Callable[[M], Optional[Union[str, int]]],
+    progress_extractor: Optional[Callable[[M], Optional[int]]] = None,
+    price_extractor: Optional[Callable[[M], Optional[float]]] = None,
+    completed_statuses: Optional[list[Union[str, int]]] = None,
+    failed_statuses: Optional[list[Union[str, int]]] = None,
+    queued_statuses: Optional[list[Union[str, int]]] = None,
+    data: Optional[BaseModel] = None,
+    poll_interval: float = 5.0,
+    max_poll_attempts: int = 120,
+    timeout_per_poll: float = 120.0,
+    max_retries_per_poll: int = 3,
+    retry_delay_per_poll: float = 1.0,
+    retry_backoff_per_poll: float = 2.0,
+    estimated_duration: Optional[int] = None,
+    cancel_endpoint: Optional[ApiEndpoint] = None,
+    cancel_timeout: float = 10.0,
+) -> M:
+    raw = await poll_op_raw(
+        cls,
+        poll_endpoint=poll_endpoint,
+        status_extractor=_wrap_model_extractor(response_model, status_extractor),
+        progress_extractor=_wrap_model_extractor(response_model, progress_extractor),
+        price_extractor=_wrap_model_extractor(response_model, price_extractor),
+        completed_statuses=completed_statuses,
+        failed_statuses=failed_statuses,
+        queued_statuses=queued_statuses,
+        data=data,
+        poll_interval=poll_interval,
+        max_poll_attempts=max_poll_attempts,
+        timeout_per_poll=timeout_per_poll,
+        max_retries_per_poll=max_retries_per_poll,
+        retry_delay_per_poll=retry_delay_per_poll,
+        retry_backoff_per_poll=retry_backoff_per_poll,
+        estimated_duration=estimated_duration,
+        cancel_endpoint=cancel_endpoint,
+        cancel_timeout=cancel_timeout,
+    )
+    if not isinstance(raw, dict):
+        raise Exception("Expected JSON response to validate into a Pydantic model, got non-JSON (binary or text).")
+    return _validate_or_raise(response_model, raw)
+
+
+async def sync_op_raw(
+    cls: type[IO.ComfyNode],
+    endpoint: ApiEndpoint,
+    *,
+    data: Optional[Union[dict[str, Any], BaseModel]] = None,
+    files: Optional[Union[dict[str, Any], list[tuple[str, Any]]]] = None,
+    content_type: str = "application/json",
+    timeout: float = 3600.0,
+    multipart_parser: Optional[Callable] = None,
+    max_retries: int = 3,
+    retry_delay: float = 1.0,
+    retry_backoff: float = 2.0,
+    wait_label: str = "Waiting for server",
+    estimated_duration: Optional[int] = None,
+    as_binary: bool = False,
+    final_label_on_success: Optional[str] = "Completed",
+    progress_origin_ts: Optional[float] = None,
+    monitor_progress: bool = True,
+) -> Union[dict[str, Any], bytes]:
+    """
+    Make a single network request.
+      - If as_binary=False (default): returns JSON dict (or {'_raw': '<text>'} if non-JSON).
+      - If as_binary=True: returns bytes.
+    """
+    if isinstance(data, BaseModel):
+        data = data.model_dump(exclude_none=True)
+        for k, v in list(data.items()):
+            if isinstance(v, Enum):
+                data[k] = v.value
+    cfg = _RequestConfig(
+        node_cls=cls,
+        endpoint=endpoint,
+        timeout=timeout,
+        content_type=content_type,
+        data=data,
+        files=files,
+        multipart_parser=multipart_parser,
+        max_retries=max_retries,
+        retry_delay=retry_delay,
+        retry_backoff=retry_backoff,
+        wait_label=wait_label,
+        monitor_progress=monitor_progress,
+        estimated_total=estimated_duration,
+        final_label_on_success=final_label_on_success,
+        progress_origin_ts=progress_origin_ts,
+    )
+    return await _request_base(cfg, expect_binary=as_binary)
+
+
+async def poll_op_raw(
+    cls: type[IO.ComfyNode],
+    poll_endpoint: ApiEndpoint,
+    *,
+    status_extractor: Callable[[dict[str, Any]], Optional[Union[str, int]]],
+    progress_extractor: Optional[Callable[[dict[str, Any]], Optional[int]]] = None,
+    price_extractor: Optional[Callable[[dict[str, Any]], Optional[float]]] = None,
+    completed_statuses: Optional[list[Union[str, int]]] = None,
+    failed_statuses: Optional[list[Union[str, int]]] = None,
+    queued_statuses: Optional[list[Union[str, int]]] = None,
+    data: Optional[Union[dict[str, Any], BaseModel]] = None,
+    poll_interval: float = 5.0,
+    max_poll_attempts: int = 120,
+    timeout_per_poll: float = 120.0,
+    max_retries_per_poll: int = 3,
+    retry_delay_per_poll: float = 1.0,
+    retry_backoff_per_poll: float = 2.0,
+    estimated_duration: Optional[int] = None,
+    cancel_endpoint: Optional[ApiEndpoint] = None,
+    cancel_timeout: float = 10.0,
+) -> dict[str, Any]:
+    """
+    Polls an endpoint until the task reaches a terminal state. Displays time while queued/processing,
+    checks interruption every second, and calls Cancel endpoint (if provided) on interruption.
+
+    Uses default complete, failed and queued states assumption.
+
+    Returns the final JSON response from the poll endpoint.
+    """
+    completed_states = _normalize_statuses(COMPLETED_STATUSES if completed_statuses is None else completed_statuses)
+    failed_states = _normalize_statuses(FAILED_STATUSES if failed_statuses is None else failed_statuses)
+    queued_states = _normalize_statuses(QUEUED_STATUSES if queued_statuses is None else queued_statuses)
+    started = time.monotonic()
+    consumed_attempts = 0  # counts only non-queued polls
+
+    progress_bar = utils.ProgressBar(100) if progress_extractor else None
+    last_progress: Optional[int] = None
+
+    state = _PollUIState(started=started, estimated_duration=estimated_duration)
+    stop_ticker = asyncio.Event()
+
+    async def _ticker():
+        """Emit a UI update every second while polling is in progress."""
+        try:
+            while not stop_ticker.is_set():
+                if is_processing_interrupted():
+                    break
+                now = time.monotonic()
+                proc_elapsed = state.base_processing_elapsed + (
+                    (now - state.active_since) if state.active_since is not None else 0.0
+                )
+                _display_time_progress(
+                    cls,
+                    status=state.status_label,
+                    elapsed_seconds=int(now - state.started),
+                    estimated_total=state.estimated_duration,
+                    price=state.price,
+                    is_queued=state.is_queued,
+                    processing_elapsed_seconds=int(proc_elapsed),
+                )
+                await asyncio.sleep(1.0)
+        except Exception as exc:
+            logging.debug("Polling ticker exited: %s", exc)
+
+    ticker_task = asyncio.create_task(_ticker())
+    try:
+        while consumed_attempts < max_poll_attempts:
+            try:
+                resp_json = await sync_op_raw(
+                    cls,
+                    poll_endpoint,
+                    data=data,
+                    timeout=timeout_per_poll,
+                    max_retries=max_retries_per_poll,
+                    retry_delay=retry_delay_per_poll,
+                    retry_backoff=retry_backoff_per_poll,
+                    wait_label="Checking",
+                    estimated_duration=None,
+                    as_binary=False,
+                    final_label_on_success=None,
+                    monitor_progress=False,
+                )
+                if not isinstance(resp_json, dict):
+                    raise Exception("Polling endpoint returned non-JSON response.")
+            except ProcessingInterrupted:
+                if cancel_endpoint:
+                    with contextlib.suppress(Exception):
+                        await sync_op_raw(
+                            cls,
+                            cancel_endpoint,
+                            timeout=cancel_timeout,
+                            max_retries=0,
+                            wait_label="Cancelling task",
+                            estimated_duration=None,
+                            as_binary=False,
+                            final_label_on_success=None,
+                            monitor_progress=False,
+                        )
+                raise
+
+            try:
+                status = _normalize_status_value(status_extractor(resp_json))
+            except Exception as e:
+                logging.error("Status extraction failed: %s", e)
+                status = None
+
+            if price_extractor:
+                new_price = price_extractor(resp_json)
+                if new_price is not None:
+                    state.price = new_price
+
+            if progress_extractor:
+                new_progress = progress_extractor(resp_json)
+                if new_progress is not None and last_progress != new_progress:
+                    progress_bar.update_absolute(new_progress, total=100)
+                    last_progress = new_progress
+
+            now_ts = time.monotonic()
+            is_queued = status in queued_states
+
+            if is_queued:
+                if state.active_since is not None:  # If we just moved from active -> queued, close the active interval
+                    state.base_processing_elapsed += now_ts - state.active_since
+                    state.active_since = None
+            else:
+                if state.active_since is None:  # If we just moved from queued -> active, open a new active interval
+                    state.active_since = now_ts
+
+            state.is_queued = is_queued
+            state.status_label = status or ("Queued" if is_queued else "Processing")
+            if status in completed_states:
+                if state.active_since is not None:
+                    state.base_processing_elapsed += now_ts - state.active_since
+                    state.active_since = None
+                stop_ticker.set()
+                with contextlib.suppress(Exception):
+                    await ticker_task
+
+                if progress_bar and last_progress != 100:
+                    progress_bar.update_absolute(100, total=100)
+
+                _display_time_progress(
+                    cls,
+                    status=status if status else "Completed",
+                    elapsed_seconds=int(now_ts - started),
+                    estimated_total=estimated_duration,
+                    price=state.price,
+                    is_queued=False,
+                    processing_elapsed_seconds=int(state.base_processing_elapsed),
+                )
+                return resp_json
+
+            if status in failed_states:
+                msg = f"Task failed: {json.dumps(resp_json)}"
+                logging.error(msg)
+                raise Exception(msg)
+
+            try:
+                await sleep_with_interrupt(poll_interval, cls, None, None, None)
+            except ProcessingInterrupted:
+                if cancel_endpoint:
+                    with contextlib.suppress(Exception):
+                        await sync_op_raw(
+                            cls,
+                            cancel_endpoint,
+                            timeout=cancel_timeout,
+                            max_retries=0,
+                            wait_label="Cancelling task",
+                            estimated_duration=None,
+                            as_binary=False,
+                            final_label_on_success=None,
+                            monitor_progress=False,
+                        )
+                raise
+            if not is_queued:
+                consumed_attempts += 1
+
+        raise Exception(
+            f"Polling timed out after {max_poll_attempts} non-queued attempts "
+            f"(~{int(max_poll_attempts * poll_interval)}s of active polling)."
+        )
+    except ProcessingInterrupted:
+        raise
+    except (LocalNetworkError, ApiServerError):
+        raise
+    except Exception as e:
+        raise Exception(f"Polling aborted due to error: {e}") from e
+    finally:
+        stop_ticker.set()
+        with contextlib.suppress(Exception):
+            await ticker_task
+
+
+def _display_text(
+    node_cls: type[IO.ComfyNode],
+    text: Optional[str],
+    *,
+    status: Optional[Union[str, int]] = None,
+    price: Optional[float] = None,
+) -> None:
+    display_lines: list[str] = []
+    if status:
+        display_lines.append(f"Status: {status.capitalize() if isinstance(status, str) else status}")
+    if price is not None:
+        display_lines.append(f"Price: ${float(price):,.4f}")
+    if text is not None:
+        display_lines.append(text)
+    if display_lines:
+        PromptServer.instance.send_progress_text("\n".join(display_lines), get_node_id(node_cls))
+
+
+def _display_time_progress(
+    node_cls: type[IO.ComfyNode],
+    status: Optional[Union[str, int]],
+    elapsed_seconds: int,
+    estimated_total: Optional[int] = None,
+    *,
+    price: Optional[float] = None,
+    is_queued: Optional[bool] = None,
+    processing_elapsed_seconds: Optional[int] = None,
+) -> None:
+    if estimated_total is not None and estimated_total > 0 and is_queued is False:
+        pe = processing_elapsed_seconds if processing_elapsed_seconds is not None else elapsed_seconds
+        remaining = max(0, int(estimated_total) - int(pe))
+        time_line = f"Time elapsed: {int(elapsed_seconds)}s (~{remaining}s remaining)"
+    else:
+        time_line = f"Time elapsed: {int(elapsed_seconds)}s"
+    _display_text(node_cls, time_line, status=status, price=price)
+
+
+async def _diagnose_connectivity() -> dict[str, bool]:
+    """Best-effort connectivity diagnostics to distinguish local vs. server issues."""
+    results = {
+        "internet_accessible": False,
+        "api_accessible": False,
+    }
+    timeout = aiohttp.ClientTimeout(total=5.0)
+    async with aiohttp.ClientSession(timeout=timeout) as session:
+        with contextlib.suppress(ClientError, OSError):
+            async with session.get("https://www.google.com") as resp:
+                results["internet_accessible"] = resp.status < 500
+        if not results["internet_accessible"]:
+            return results
+
+        parsed = urlparse(default_base_url())
+        health_url = f"{parsed.scheme}://{parsed.netloc}/health"
+        with contextlib.suppress(ClientError, OSError):
+            async with session.get(health_url) as resp:
+                results["api_accessible"] = resp.status < 500
+    return results
+
+
+def _unpack_tuple(t: tuple) -> tuple[str, Any, str]:
+    """Normalize (filename, value, content_type)."""
+    if len(t) == 2:
+        return t[0], t[1], "application/octet-stream"
+    if len(t) == 3:
+        return t[0], t[1], t[2]
+    raise ValueError("files tuple must be (filename, file[, content_type])")
+
+
+def _merge_params(endpoint_params: dict[str, Any], method: str, data: Optional[dict[str, Any]]) -> dict[str, Any]:
+    params = dict(endpoint_params or {})
+    if method.upper() == "GET" and data:
+        for k, v in data.items():
+            if v is not None:
+                params[k] = v
+    return params
+
+
+def _friendly_http_message(status: int, body: Any) -> str:
+    if status == 401:
+        return "Unauthorized: Please login first to use this node."
+    if status == 402:
+        return "Payment Required: Please add credits to your account to use this node."
+    if status == 409:
+        return "There is a problem with your account. Please contact support@comfy.org."
+    if status == 429:
+        return "Rate Limit Exceeded: Please try again later."
+    try:
+        if isinstance(body, dict):
+            err = body.get("error")
+            if isinstance(err, dict):
+                msg = err.get("message")
+                typ = err.get("type")
+                if msg and typ:
+                    return f"API Error: {msg} (Type: {typ})"
+                if msg:
+                    return f"API Error: {msg}"
+            return f"API Error: {json.dumps(body)}"
+        else:
+            txt = str(body)
+            if len(txt) <= 200:
+                return f"API Error (raw): {txt}"
+            return f"API Error (status {status})"
+    except Exception:
+        return f"HTTP {status}: Unknown error"
+
+
+def _generate_operation_id(method: str, path: str, attempt: int) -> str:
+    slug = path.strip("/").replace("/", "_") or "op"
+    return f"{method}_{slug}_try{attempt}_{uuid.uuid4().hex[:8]}"
+
+
+def _snapshot_request_body_for_logging(
+    content_type: str,
+    method: str,
+    data: Optional[dict[str, Any]],
+    files: Optional[Union[dict[str, Any], list[tuple[str, Any]]]],
+) -> Optional[Union[dict[str, Any], str]]:
+    if method.upper() == "GET":
+        return None
+    if content_type == "multipart/form-data":
+        form_fields = sorted([k for k, v in (data or {}).items() if v is not None])
+        file_fields: list[dict[str, str]] = []
+        if files:
+            file_iter = files if isinstance(files, list) else list(files.items())
+            for field_name, file_obj in file_iter:
+                if file_obj is None:
+                    continue
+                if isinstance(file_obj, tuple):
+                    filename = file_obj[0]
+                else:
+                    filename = getattr(file_obj, "name", field_name)
+                file_fields.append({"field": field_name, "filename": str(filename or "")})
+        return {"_multipart": True, "form_fields": form_fields, "file_fields": file_fields}
+    if content_type == "application/x-www-form-urlencoded":
+        return data or {}
+    return data or {}
+
+
+async def _request_base(cfg: _RequestConfig, expect_binary: bool):
+    """Core request with retries, per-second interruption monitoring, true cancellation, and friendly errors."""
+    url = cfg.endpoint.path
+    parsed_url = urlparse(url)
+    if not parsed_url.scheme and not parsed_url.netloc:  # is URL relative?
+        url = urljoin(default_base_url().rstrip("/") + "/", url.lstrip("/"))
+
+    method = cfg.endpoint.method
+    params = _merge_params(cfg.endpoint.query_params, method, cfg.data if method == "GET" else None)
+
+    async def _monitor(stop_evt: asyncio.Event, start_ts: float):
+        """Every second: update elapsed time and signal interruption."""
+        try:
+            while not stop_evt.is_set():
+                if is_processing_interrupted():
+                    return
+                if cfg.monitor_progress:
+                    _display_time_progress(
+                        cfg.node_cls, cfg.wait_label, int(time.monotonic() - start_ts), cfg.estimated_total
+                    )
+                await asyncio.sleep(1.0)
+        except asyncio.CancelledError:
+            return  # normal shutdown
+
+    start_time = cfg.progress_origin_ts if cfg.progress_origin_ts is not None else time.monotonic()
+    attempt = 0
+    delay = cfg.retry_delay
+    operation_succeeded: bool = False
+    final_elapsed_seconds: Optional[int] = None
+    while True:
+        attempt += 1
+        stop_event = asyncio.Event()
+        monitor_task: Optional[asyncio.Task] = None
+        sess: Optional[aiohttp.ClientSession] = None
+
+        operation_id = _generate_operation_id(method, cfg.endpoint.path, attempt)
+        logging.debug("[DEBUG] HTTP %s %s (attempt %d)", method, url, attempt)
+
+        payload_headers = {"Accept": "*/*"} if expect_binary else {"Accept": "application/json"}
+        if not parsed_url.scheme and not parsed_url.netloc:  # is URL relative?
+            payload_headers.update(get_auth_header(cfg.node_cls))
+        if cfg.endpoint.headers:
+            payload_headers.update(cfg.endpoint.headers)
+
+        payload_kw: dict[str, Any] = {"headers": payload_headers}
+        if method == "GET":
+            payload_headers.pop("Content-Type", None)
+        request_body_log = _snapshot_request_body_for_logging(cfg.content_type, method, cfg.data, cfg.files)
+        try:
+            if cfg.monitor_progress:
+                monitor_task = asyncio.create_task(_monitor(stop_event, start_time))
+
+            timeout = aiohttp.ClientTimeout(total=cfg.timeout)
+            sess = aiohttp.ClientSession(timeout=timeout)
+
+            if cfg.content_type == "multipart/form-data" and method != "GET":
+                # aiohttp will set Content-Type boundary; remove any fixed Content-Type
+                payload_headers.pop("Content-Type", None)
+                if cfg.multipart_parser and cfg.data:
+                    form = cfg.multipart_parser(cfg.data)
+                    if not isinstance(form, aiohttp.FormData):
+                        raise ValueError("multipart_parser must return aiohttp.FormData")
+                else:
+                    form = aiohttp.FormData(default_to_multipart=True)
+                    if cfg.data:
+                        for k, v in cfg.data.items():
+                            if v is None:
+                                continue
+                            form.add_field(k, str(v) if not isinstance(v, (bytes, bytearray)) else v)
+                if cfg.files:
+                    file_iter = cfg.files if isinstance(cfg.files, list) else cfg.files.items()
+                    for field_name, file_obj in file_iter:
+                        if file_obj is None:
+                            continue
+                        if isinstance(file_obj, tuple):
+                            filename, file_value, content_type = _unpack_tuple(file_obj)
+                        else:
+                            filename = getattr(file_obj, "name", field_name)
+                            file_value = file_obj
+                            content_type = "application/octet-stream"
+                        # Attempt to rewind BytesIO for retries
+                        if isinstance(file_value, BytesIO):
+                            with contextlib.suppress(Exception):
+                                file_value.seek(0)
+                        form.add_field(field_name, file_value, filename=filename, content_type=content_type)
+                payload_kw["data"] = form
+            elif cfg.content_type == "application/x-www-form-urlencoded" and method != "GET":
+                payload_headers["Content-Type"] = "application/x-www-form-urlencoded"
+                payload_kw["data"] = cfg.data or {}
+            elif method != "GET":
+                payload_headers["Content-Type"] = "application/json"
+                payload_kw["json"] = cfg.data or {}
+
+            try:
+                request_logger.log_request_response(
+                    operation_id=operation_id,
+                    request_method=method,
+                    request_url=url,
+                    request_headers=dict(payload_headers) if payload_headers else None,
+                    request_params=dict(params) if params else None,
+                    request_data=request_body_log,
+                )
+            except Exception as _log_e:
+                logging.debug("[DEBUG] request logging failed: %s", _log_e)
+
+            req_coro = sess.request(method, url, params=params, **payload_kw)
+            req_task = asyncio.create_task(req_coro)
+
+            # Race: request vs. monitor (interruption)
+            tasks = {req_task}
+            if monitor_task:
+                tasks.add(monitor_task)
+            done, pending = await asyncio.wait(tasks, return_when=asyncio.FIRST_COMPLETED)
+
+            if monitor_task and monitor_task in done:
+                # Interrupted – cancel the request and abort
+                if req_task in pending:
+                    req_task.cancel()
+                raise ProcessingInterrupted("Task cancelled")
+
+            # Otherwise, request finished
+            resp = await req_task
+            async with resp:
+                if resp.status >= 400:
+                    try:
+                        body = await resp.json()
+                    except (ContentTypeError, json.JSONDecodeError):
+                        body = await resp.text()
+                    if resp.status in _RETRY_STATUS and attempt <= cfg.max_retries:
+                        logging.warning(
+                            "HTTP %s %s -> %s. Retrying in %.2fs (retry %d of %d).",
+                            method,
+                            url,
+                            resp.status,
+                            delay,
+                            attempt,
+                            cfg.max_retries,
+                        )
+                        try:
+                            request_logger.log_request_response(
+                                operation_id=operation_id,
+                                request_method=method,
+                                request_url=url,
+                                response_status_code=resp.status,
+                                response_headers=dict(resp.headers),
+                                response_content=body,
+                                error_message=_friendly_http_message(resp.status, body),
+                            )
+                        except Exception as _log_e:
+                            logging.debug("[DEBUG] response logging failed: %s", _log_e)
+
+                        await sleep_with_interrupt(
+                            delay,
+                            cfg.node_cls,
+                            cfg.wait_label if cfg.monitor_progress else None,
+                            start_time if cfg.monitor_progress else None,
+                            cfg.estimated_total,
+                            display_callback=_display_time_progress if cfg.monitor_progress else None,
+                        )
+                        delay *= cfg.retry_backoff
+                        continue
+                    msg = _friendly_http_message(resp.status, body)
+                    try:
+                        request_logger.log_request_response(
+                            operation_id=operation_id,
+                            request_method=method,
+                            request_url=url,
+                            response_status_code=resp.status,
+                            response_headers=dict(resp.headers),
+                            response_content=body,
+                            error_message=msg,
+                        )
+                    except Exception as _log_e:
+                        logging.debug("[DEBUG] response logging failed: %s", _log_e)
+                    raise Exception(msg)
+
+                if expect_binary:
+                    buff = bytearray()
+                    last_tick = time.monotonic()
+                    async for chunk in resp.content.iter_chunked(64 * 1024):
+                        buff.extend(chunk)
+                        now = time.monotonic()
+                        if now - last_tick >= 1.0:
+                            last_tick = now
+                            if is_processing_interrupted():
+                                raise ProcessingInterrupted("Task cancelled")
+                            if cfg.monitor_progress:
+                                _display_time_progress(
+                                    cfg.node_cls, cfg.wait_label, int(now - start_time), cfg.estimated_total
+                                )
+                    bytes_payload = bytes(buff)
+                    operation_succeeded = True
+                    final_elapsed_seconds = int(time.monotonic() - start_time)
+                    try:
+                        request_logger.log_request_response(
+                            operation_id=operation_id,
+                            request_method=method,
+                            request_url=url,
+                            response_status_code=resp.status,
+                            response_headers=dict(resp.headers),
+                            response_content=bytes_payload,
+                        )
+                    except Exception as _log_e:
+                        logging.debug("[DEBUG] response logging failed: %s", _log_e)
+                    return bytes_payload
+                else:
+                    try:
+                        payload = await resp.json()
+                        response_content_to_log: Any = payload
+                    except (ContentTypeError, json.JSONDecodeError):
+                        text = await resp.text()
+                        try:
+                            payload = json.loads(text) if text else {}
+                        except json.JSONDecodeError:
+                            payload = {"_raw": text}
+                        response_content_to_log = payload if isinstance(payload, dict) else text
+                    operation_succeeded = True
+                    final_elapsed_seconds = int(time.monotonic() - start_time)
+                    try:
+                        request_logger.log_request_response(
+                            operation_id=operation_id,
+                            request_method=method,
+                            request_url=url,
+                            response_status_code=resp.status,
+                            response_headers=dict(resp.headers),
+                            response_content=response_content_to_log,
+                        )
+                    except Exception as _log_e:
+                        logging.debug("[DEBUG] response logging failed: %s", _log_e)
+                    return payload
+
+        except ProcessingInterrupted:
+            logging.debug("Polling was interrupted by user")
+            raise
+        except (ClientError, OSError) as e:
+            if attempt <= cfg.max_retries:
+                logging.warning(
+                    "Connection error calling %s %s. Retrying in %.2fs (%d/%d): %s",
+                    method,
+                    url,
+                    delay,
+                    attempt,
+                    cfg.max_retries,
+                    str(e),
+                )
+                try:
+                    request_logger.log_request_response(
+                        operation_id=operation_id,
+                        request_method=method,
+                        request_url=url,
+                        request_headers=dict(payload_headers) if payload_headers else None,
+                        request_params=dict(params) if params else None,
+                        request_data=request_body_log,
+                        error_message=f"{type(e).__name__}: {str(e)} (will retry)",
+                    )
+                except Exception as _log_e:
+                    logging.debug("[DEBUG] request error logging failed: %s", _log_e)
+                await sleep_with_interrupt(
+                    delay,
+                    cfg.node_cls,
+                    cfg.wait_label if cfg.monitor_progress else None,
+                    start_time if cfg.monitor_progress else None,
+                    cfg.estimated_total,
+                    display_callback=_display_time_progress if cfg.monitor_progress else None,
+                )
+                delay *= cfg.retry_backoff
+                continue
+            diag = await _diagnose_connectivity()
+            if not diag["internet_accessible"]:
+                try:
+                    request_logger.log_request_response(
+                        operation_id=operation_id,
+                        request_method=method,
+                        request_url=url,
+                        request_headers=dict(payload_headers) if payload_headers else None,
+                        request_params=dict(params) if params else None,
+                        request_data=request_body_log,
+                        error_message=f"LocalNetworkError: {str(e)}",
+                    )
+                except Exception as _log_e:
+                    logging.debug("[DEBUG] final error logging failed: %s", _log_e)
+                raise LocalNetworkError(
+                    "Unable to connect to the API server due to local network issues. "
+                    "Please check your internet connection and try again."
+                ) from e
+            try:
+                request_logger.log_request_response(
+                    operation_id=operation_id,
+                    request_method=method,
+                    request_url=url,
+                    request_headers=dict(payload_headers) if payload_headers else None,
+                    request_params=dict(params) if params else None,
+                    request_data=request_body_log,
+                    error_message=f"ApiServerError: {str(e)}",
+                )
+            except Exception as _log_e:
+                logging.debug("[DEBUG] final error logging failed: %s", _log_e)
+            raise ApiServerError(
+                f"The API server at {default_base_url()} is currently unreachable. "
+                f"The service may be experiencing issues."
+            ) from e
+        finally:
+            stop_event.set()
+            if monitor_task:
+                monitor_task.cancel()
+                with contextlib.suppress(Exception):
+                    await monitor_task
+            if sess:
+                with contextlib.suppress(Exception):
+                    await sess.close()
+            if operation_succeeded and cfg.monitor_progress and cfg.final_label_on_success:
+                _display_time_progress(
+                    cfg.node_cls,
+                    status=cfg.final_label_on_success,
+                    elapsed_seconds=(
+                        final_elapsed_seconds
+                        if final_elapsed_seconds is not None
+                        else int(time.monotonic() - start_time)
+                    ),
+                    estimated_total=cfg.estimated_total,
+                    price=None,
+                    is_queued=False,
+                    processing_elapsed_seconds=final_elapsed_seconds,
+                )
+
+
+def _validate_or_raise(response_model: Type[M], payload: Any) -> M:
+    try:
+        return response_model.model_validate(payload)
+    except Exception as e:
+        logging.error(
+            "Response validation failed for %s: %s",
+            getattr(response_model, "__name__", response_model),
+            e,
+        )
+        raise Exception(
+            f"Response validation failed for {getattr(response_model, '__name__', response_model)}: {e}"
+        ) from e
+
+
+def _wrap_model_extractor(
+    response_model: Type[M],
+    extractor: Optional[Callable[[M], Any]],
+) -> Optional[Callable[[dict[str, Any]], Any]]:
+    """Wrap a typed extractor so it can be used by the dict-based poller.
+    Validates the dict into `response_model` before invoking `extractor`.
+    Uses a small per-wrapper cache keyed by `id(dict)` to avoid re-validating
+    the same response for multiple extractors in a single poll attempt.
+    """
+    if extractor is None:
+        return None
+    _cache: dict[int, M] = {}
+
+    def _wrapped(d: dict[str, Any]) -> Any:
+        try:
+            key = id(d)
+            model = _cache.get(key)
+            if model is None:
+                model = response_model.model_validate(d)
+                _cache[key] = model
+            return extractor(model)
+        except Exception as e:
+            logging.error("Extractor failed (typed -> dict wrapper): %s", e)
+            raise
+
+    return _wrapped
+
+
+def _normalize_statuses(values: Optional[Iterable[Union[str, int]]]) -> set[Union[str, int]]:
+    if not values:
+        return set()
+    out: set[Union[str, int]] = set()
+    for v in values:
+        nv = _normalize_status_value(v)
+        if nv is not None:
+            out.add(nv)
+    return out
+
+
+def _normalize_status_value(val: Union[str, int, None]) -> Union[str, int, None]:
+    if isinstance(val, str):
+        return val.strip().lower()
+    return val

comfy_api_nodes/util/common_exceptions.py

@@ -0,0 +1,14 @@
+class NetworkError(Exception):
+    """Base exception for network-related errors with diagnostic information."""
+
+
+class LocalNetworkError(NetworkError):
+    """Exception raised when local network connectivity issues are detected."""
+
+
+class ApiServerError(NetworkError):
+    """Exception raised when the API server is unreachable but internet is working."""
+
+
+class ProcessingInterrupted(Exception):
+    """Operation was interrupted by user/runtime via processing_interrupted()."""

comfy_api_nodes/util/conversions.py

@@ -0,0 +1,470 @@
+import base64
+import logging
+import math
+import mimetypes
+import uuid
+from io import BytesIO
+from typing import Optional
+
+import av
+import numpy as np
+import torch
+from PIL import Image
+
+from comfy.utils import common_upscale
+from comfy_api.latest import Input, InputImpl
+from comfy_api.util import VideoCodec, VideoContainer
+
+from ._helpers import mimetype_to_extension
+
+
+def bytesio_to_image_tensor(image_bytesio: BytesIO, mode: str = "RGBA") -> torch.Tensor:
+    """Converts image data from BytesIO to a torch.Tensor.
+
+    Args:
+        image_bytesio: BytesIO object containing the image data.
+        mode: The PIL mode to convert the image to (e.g., "RGB", "RGBA").
+
+    Returns:
+        A torch.Tensor representing the image (1, H, W, C).
+
+    Raises:
+        PIL.UnidentifiedImageError: If the image data cannot be identified.
+        ValueError: If the specified mode is invalid.
+    """
+    image = Image.open(image_bytesio)
+    image = image.convert(mode)
+    image_array = np.array(image).astype(np.float32) / 255.0
+    return torch.from_numpy(image_array).unsqueeze(0)
+
+
+def image_tensor_pair_to_batch(image1: torch.Tensor, image2: torch.Tensor) -> torch.Tensor:
+    """
+    Converts a pair of image tensors to a batch tensor.
+    If the images are not the same size, the smaller image is resized to
+    match the larger image.
+    """
+    if image1.shape[1:] != image2.shape[1:]:
+        image2 = common_upscale(
+            image2.movedim(-1, 1),
+            image1.shape[2],
+            image1.shape[1],
+            "bilinear",
+            "center",
+        ).movedim(1, -1)
+    return torch.cat((image1, image2), dim=0)
+
+
+def tensor_to_bytesio(
+    image: torch.Tensor,
+    name: Optional[str] = None,
+    total_pixels: int = 2048 * 2048,
+    mime_type: str = "image/png",
+) -> BytesIO:
+    """Converts a torch.Tensor image to a named BytesIO object.
+
+    Args:
+        image: Input torch.Tensor image.
+        name: Optional filename for the BytesIO object.
+        total_pixels: Maximum total pixels for potential downscaling.
+        mime_type: Target image MIME type (e.g., 'image/png', 'image/jpeg', 'image/webp', 'video/mp4').
+
+    Returns:
+        Named BytesIO object containing the image data, with pointer set to the start of buffer.
+    """
+    if not mime_type:
+        mime_type = "image/png"
+
+    pil_image = tensor_to_pil(image, total_pixels=total_pixels)
+    img_binary = pil_to_bytesio(pil_image, mime_type=mime_type)
+    img_binary.name = f"{name if name else uuid.uuid4()}.{mimetype_to_extension(mime_type)}"
+    return img_binary
+
+
+def tensor_to_pil(image: torch.Tensor, total_pixels: int = 2048 * 2048) -> Image.Image:
+    """Converts a single torch.Tensor image [H, W, C] to a PIL Image, optionally downscaling."""
+    if len(image.shape) > 3:
+        image = image[0]
+    # TODO: remove alpha if not allowed and present
+    input_tensor = image.cpu()
+    input_tensor = downscale_image_tensor(input_tensor.unsqueeze(0), total_pixels=total_pixels).squeeze()
+    image_np = (input_tensor.numpy() * 255).astype(np.uint8)
+    img = Image.fromarray(image_np)
+    return img
+
+
+def tensor_to_base64_string(
+    image_tensor: torch.Tensor,
+    total_pixels: int = 2048 * 2048,
+    mime_type: str = "image/png",
+) -> str:
+    """Convert [B, H, W, C] or [H, W, C] tensor to a base64 string.
+
+    Args:
+        image_tensor: Input torch.Tensor image.
+        total_pixels: Maximum total pixels for potential downscaling.
+        mime_type: Target image MIME type (e.g., 'image/png', 'image/jpeg', 'image/webp', 'video/mp4').
+
+    Returns:
+        Base64 encoded string of the image.
+    """
+    pil_image = tensor_to_pil(image_tensor, total_pixels=total_pixels)
+    img_byte_arr = pil_to_bytesio(pil_image, mime_type=mime_type)
+    img_bytes = img_byte_arr.getvalue()
+    # Encode bytes to base64 string
+    base64_encoded_string = base64.b64encode(img_bytes).decode("utf-8")
+    return base64_encoded_string
+
+
+def pil_to_bytesio(img: Image.Image, mime_type: str = "image/png") -> BytesIO:
+    """Converts a PIL Image to a BytesIO object."""
+    if not mime_type:
+        mime_type = "image/png"
+
+    img_byte_arr = BytesIO()
+    # Derive PIL format from MIME type (e.g., 'image/png' -> 'PNG')
+    pil_format = mime_type.split("/")[-1].upper()
+    if pil_format == "JPG":
+        pil_format = "JPEG"
+    img.save(img_byte_arr, format=pil_format)
+    img_byte_arr.seek(0)
+    return img_byte_arr
+
+
+def downscale_image_tensor(image, total_pixels=1536 * 1024) -> torch.Tensor:
+    """Downscale input image tensor to roughly the specified total pixels."""
+    samples = image.movedim(-1, 1)
+    total = int(total_pixels)
+    scale_by = math.sqrt(total / (samples.shape[3] * samples.shape[2]))
+    if scale_by >= 1:
+        return image
+    width = round(samples.shape[3] * scale_by)
+    height = round(samples.shape[2] * scale_by)
+
+    s = common_upscale(samples, width, height, "lanczos", "disabled")
+    s = s.movedim(1, -1)
+    return s
+
+
+def tensor_to_data_uri(
+    image_tensor: torch.Tensor,
+    total_pixels: int = 2048 * 2048,
+    mime_type: str = "image/png",
+) -> str:
+    """Converts a tensor image to a Data URI string.
+
+    Args:
+        image_tensor: Input torch.Tensor image.
+        total_pixels: Maximum total pixels for potential downscaling.
+        mime_type: Target image MIME type (e.g., 'image/png', 'image/jpeg', 'image/webp').
+
+    Returns:
+        Data URI string (e.g., 'data:image/png;base64,...').
+    """
+    base64_string = tensor_to_base64_string(image_tensor, total_pixels, mime_type)
+    return f"data:{mime_type};base64,{base64_string}"
+
+
+def audio_to_base64_string(audio: Input.Audio, container_format: str = "mp4", codec_name: str = "aac") -> str:
+    """Converts an audio input to a base64 string."""
+    sample_rate: int = audio["sample_rate"]
+    waveform: torch.Tensor = audio["waveform"]
+    audio_data_np = audio_tensor_to_contiguous_ndarray(waveform)
+    audio_bytes_io = audio_ndarray_to_bytesio(audio_data_np, sample_rate, container_format, codec_name)
+    audio_bytes = audio_bytes_io.getvalue()
+    return base64.b64encode(audio_bytes).decode("utf-8")
+
+
+def video_to_base64_string(
+    video: Input.Video,
+    container_format: VideoContainer = None,
+    codec: VideoCodec = None
+) -> str:
+    """
+    Converts a video input to a base64 string.
+
+    Args:
+        video: The video input to convert
+        container_format: Optional container format to use (defaults to video.container if available)
+        codec: Optional codec to use (defaults to video.codec if available)
+    """
+    video_bytes_io = BytesIO()
+
+    # Use provided format/codec if specified, otherwise use video's own if available
+    format_to_use = container_format if container_format is not None else getattr(video, 'container', VideoContainer.MP4)
+    codec_to_use = codec if codec is not None else getattr(video, 'codec', VideoCodec.H264)
+
+    video.save_to(video_bytes_io, format=format_to_use, codec=codec_to_use)
+    video_bytes_io.seek(0)
+    return base64.b64encode(video_bytes_io.getvalue()).decode("utf-8")
+
+
+def audio_ndarray_to_bytesio(
+    audio_data_np: np.ndarray,
+    sample_rate: int,
+    container_format: str = "mp4",
+    codec_name: str = "aac",
+) -> BytesIO:
+    """
+    Encodes a numpy array of audio data into a BytesIO object.
+    """
+    audio_bytes_io = BytesIO()
+    with av.open(audio_bytes_io, mode="w", format=container_format) as output_container:
+        audio_stream = output_container.add_stream(codec_name, rate=sample_rate)
+        frame = av.AudioFrame.from_ndarray(
+            audio_data_np,
+            format="fltp",
+            layout="stereo" if audio_data_np.shape[0] > 1 else "mono",
+        )
+        frame.sample_rate = sample_rate
+        frame.pts = 0
+
+        for packet in audio_stream.encode(frame):
+            output_container.mux(packet)
+
+        # Flush stream
+        for packet in audio_stream.encode(None):
+            output_container.mux(packet)
+
+    audio_bytes_io.seek(0)
+    return audio_bytes_io
+
+
+def audio_tensor_to_contiguous_ndarray(waveform: torch.Tensor) -> np.ndarray:
+    """
+    Prepares audio waveform for av library by converting to a contiguous numpy array.
+
+    Args:
+        waveform: a tensor of shape (1, channels, samples) derived from a Comfy `AUDIO` type.
+
+    Returns:
+        Contiguous numpy array of the audio waveform. If the audio was batched,
+            the first item is taken.
+    """
+    if waveform.ndim != 3 or waveform.shape[0] != 1:
+        raise ValueError("Expected waveform tensor shape (1, channels, samples)")
+
+    # If batch is > 1, take first item
+    if waveform.shape[0] > 1:
+        waveform = waveform[0]
+
+    # Prepare for av: remove batch dim, move to CPU, make contiguous, convert to numpy array
+    audio_data_np = waveform.squeeze(0).cpu().contiguous().numpy()
+    if audio_data_np.dtype != np.float32:
+        audio_data_np = audio_data_np.astype(np.float32)
+
+    return audio_data_np
+
+
+def audio_input_to_mp3(audio: Input.Audio) -> BytesIO:
+    waveform = audio["waveform"].cpu()
+
+    output_buffer = BytesIO()
+    output_container = av.open(output_buffer, mode="w", format="mp3")
+
+    out_stream = output_container.add_stream("libmp3lame", rate=audio["sample_rate"])
+    out_stream.bit_rate = 320000
+
+    frame = av.AudioFrame.from_ndarray(
+        waveform.movedim(0, 1).reshape(1, -1).float().numpy(),
+        format="flt",
+        layout="mono" if waveform.shape[0] == 1 else "stereo",
+    )
+    frame.sample_rate = audio["sample_rate"]
+    frame.pts = 0
+    output_container.mux(out_stream.encode(frame))
+    output_container.mux(out_stream.encode(None))
+    output_container.close()
+    output_buffer.seek(0)
+    return output_buffer
+
+
+def trim_video(video: Input.Video, duration_sec: float) -> Input.Video:
+    """
+    Returns a new VideoInput object trimmed from the beginning to the specified duration,
+    using av to avoid loading entire video into memory.
+
+    Args:
+        video: Input video to trim
+        duration_sec: Duration in seconds to keep from the beginning
+
+    Returns:
+        VideoFromFile object that owns the output buffer
+    """
+    output_buffer = BytesIO()
+    input_container = None
+    output_container = None
+
+    try:
+        # Get the stream source - this avoids loading entire video into memory
+        # when the source is already a file path
+        input_source = video.get_stream_source()
+
+        # Open containers
+        input_container = av.open(input_source, mode="r")
+        output_container = av.open(output_buffer, mode="w", format="mp4")
+
+        # Set up output streams for re-encoding
+        video_stream = None
+        audio_stream = None
+
+        for stream in input_container.streams:
+            logging.info("Found stream: type=%s, class=%s", stream.type, type(stream))
+            if isinstance(stream, av.VideoStream):
+                # Create output video stream with same parameters
+                video_stream = output_container.add_stream("h264", rate=stream.average_rate)
+                video_stream.width = stream.width
+                video_stream.height = stream.height
+                video_stream.pix_fmt = "yuv420p"
+                logging.info("Added video stream: %sx%s @ %sfps", stream.width, stream.height, stream.average_rate)
+            elif isinstance(stream, av.AudioStream):
+                # Create output audio stream with same parameters
+                audio_stream = output_container.add_stream("aac", rate=stream.sample_rate)
+                audio_stream.sample_rate = stream.sample_rate
+                audio_stream.layout = stream.layout
+                logging.info("Added audio stream: %sHz, %s channels", stream.sample_rate, stream.channels)
+
+        # Calculate target frame count that's divisible by 16
+        fps = input_container.streams.video[0].average_rate
+        estimated_frames = int(duration_sec * fps)
+        target_frames = (estimated_frames // 16) * 16  # Round down to nearest multiple of 16
+
+        if target_frames == 0:
+            raise ValueError("Video too short: need at least 16 frames for Moonvalley")
+
+        frame_count = 0
+        audio_frame_count = 0
+
+        # Decode and re-encode video frames
+        if video_stream:
+            for frame in input_container.decode(video=0):
+                if frame_count >= target_frames:
+                    break
+
+                # Re-encode frame
+                for packet in video_stream.encode(frame):
+                    output_container.mux(packet)
+                frame_count += 1
+
+            # Flush encoder
+            for packet in video_stream.encode():
+                output_container.mux(packet)
+
+            logging.info("Encoded %s video frames (target: %s)", frame_count, target_frames)
+
+        # Decode and re-encode audio frames
+        if audio_stream:
+            input_container.seek(0)  # Reset to beginning for audio
+            for frame in input_container.decode(audio=0):
+                if frame.time >= duration_sec:
+                    break
+
+                # Re-encode frame
+                for packet in audio_stream.encode(frame):
+                    output_container.mux(packet)
+                audio_frame_count += 1
+
+            # Flush encoder
+            for packet in audio_stream.encode():
+                output_container.mux(packet)
+
+            logging.info("Encoded %s audio frames", audio_frame_count)
+
+        # Close containers
+        output_container.close()
+        input_container.close()
+
+        # Return as VideoFromFile using the buffer
+        output_buffer.seek(0)
+        return InputImpl.VideoFromFile(output_buffer)
+
+    except Exception as e:
+        # Clean up on error
+        if input_container is not None:
+            input_container.close()
+        if output_container is not None:
+            output_container.close()
+        raise RuntimeError(f"Failed to trim video: {str(e)}") from e
+
+
+def _f32_pcm(wav: torch.Tensor) -> torch.Tensor:
+    """Convert audio to float 32 bits PCM format. Copy-paste from nodes_audio.py file."""
+    if wav.dtype.is_floating_point:
+        return wav
+    elif wav.dtype == torch.int16:
+        return wav.float() / (2**15)
+    elif wav.dtype == torch.int32:
+        return wav.float() / (2**31)
+    raise ValueError(f"Unsupported wav dtype: {wav.dtype}")
+
+
+def audio_bytes_to_audio_input(audio_bytes: bytes) -> dict:
+    """
+    Decode any common audio container from bytes using PyAV and return
+    a Comfy AUDIO dict: {"waveform": [1, C, T] float32, "sample_rate": int}.
+    """
+    with av.open(BytesIO(audio_bytes)) as af:
+        if not af.streams.audio:
+            raise ValueError("No audio stream found in response.")
+        stream = af.streams.audio[0]
+
+        in_sr = int(stream.codec_context.sample_rate)
+        out_sr = in_sr
+
+        frames: list[torch.Tensor] = []
+        n_channels = stream.channels or 1
+
+        for frame in af.decode(streams=stream.index):
+            arr = frame.to_ndarray()  # shape can be [C, T] or [T, C] or [T]
+            buf = torch.from_numpy(arr)
+            if buf.ndim == 1:
+                buf = buf.unsqueeze(0)  # [T] -> [1, T]
+            elif buf.shape[0] != n_channels and buf.shape[-1] == n_channels:
+                buf = buf.transpose(0, 1).contiguous()  # [T, C] -> [C, T]
+            elif buf.shape[0] != n_channels:
+                buf = buf.reshape(-1, n_channels).t().contiguous()  # fallback to [C, T]
+            frames.append(buf)
+
+    if not frames:
+        raise ValueError("Decoded zero audio frames.")
+
+    wav = torch.cat(frames, dim=1)  # [C, T]
+    wav = _f32_pcm(wav)
+    return {"waveform": wav.unsqueeze(0).contiguous(), "sample_rate": out_sr}
+
+
+def resize_mask_to_image(
+    mask: torch.Tensor,
+    image: torch.Tensor,
+    upscale_method="nearest-exact",
+    crop="disabled",
+    allow_gradient=True,
+    add_channel_dim=False,
+):
+    """Resize mask to be the same dimensions as an image, while maintaining proper format for API calls."""
+    _, height, width, _ = image.shape
+    mask = mask.unsqueeze(-1)
+    mask = mask.movedim(-1, 1)
+    mask = common_upscale(mask, width=width, height=height, upscale_method=upscale_method, crop=crop)
+    mask = mask.movedim(1, -1)
+    if not add_channel_dim:
+        mask = mask.squeeze(-1)
+    if not allow_gradient:
+        mask = (mask > 0.5).float()
+    return mask
+
+
+def text_filepath_to_base64_string(filepath: str) -> str:
+    """Converts a text file to a base64 string."""
+    with open(filepath, "rb") as f:
+        file_content = f.read()
+    return base64.b64encode(file_content).decode("utf-8")
+
+
+def text_filepath_to_data_uri(filepath: str) -> str:
+    """Converts a text file to a data URI."""
+    base64_string = text_filepath_to_base64_string(filepath)
+    mime_type, _ = mimetypes.guess_type(filepath)
+    if mime_type is None:
+        mime_type = "application/octet-stream"
+    return f"data:{mime_type};base64,{base64_string}"

comfy_api_nodes/util/download_helpers.py

@@ -0,0 +1,262 @@
+import asyncio
+import contextlib
+import uuid
+from io import BytesIO
+from pathlib import Path
+from typing import IO, Optional, Union
+from urllib.parse import urljoin, urlparse
+
+import aiohttp
+import torch
+from aiohttp.client_exceptions import ClientError, ContentTypeError
+
+from comfy_api.input_impl import VideoFromFile
+from comfy_api.latest import IO as COMFY_IO
+from comfy_api_nodes.apis import request_logger
+
+from ._helpers import (
+    default_base_url,
+    get_auth_header,
+    is_processing_interrupted,
+    sleep_with_interrupt,
+)
+from .client import _diagnose_connectivity
+from .common_exceptions import ApiServerError, LocalNetworkError, ProcessingInterrupted
+from .conversions import bytesio_to_image_tensor
+
+_RETRY_STATUS = {408, 429, 500, 502, 503, 504}
+
+
+async def download_url_to_bytesio(
+    url: str,
+    dest: Optional[Union[BytesIO, IO[bytes], str, Path]],
+    *,
+    timeout: Optional[float] = None,
+    max_retries: int = 5,
+    retry_delay: float = 1.0,
+    retry_backoff: float = 2.0,
+    cls: type[COMFY_IO.ComfyNode] = None,
+) -> None:
+    """Stream-download a URL to `dest`.
+
+    `dest` must be one of:
+      - a BytesIO (rewound to 0 after write),
+      - a file-like object opened in binary write mode (must implement .write()),
+      - a filesystem path (str | pathlib.Path), which will be opened with 'wb'.
+
+    If `url` starts with `/proxy/`, `cls` must be provided so the URL can be expanded
+    to an absolute URL and authentication headers can be applied.
+
+    Raises:
+        ProcessingInterrupted, LocalNetworkError, ApiServerError, Exception (HTTP and other errors)
+    """
+    if not isinstance(dest, (str, Path)) and not hasattr(dest, "write"):
+        raise ValueError("dest must be a path (str|Path) or a binary-writable object providing .write().")
+
+    attempt = 0
+    delay = retry_delay
+    headers: dict[str, str] = {}
+
+    parsed_url = urlparse(url)
+    if not parsed_url.scheme and not parsed_url.netloc:  # is URL relative?
+        if cls is None:
+            raise ValueError("For relative 'cloud' paths, the `cls` parameter is required.")
+        url = urljoin(default_base_url().rstrip("/") + "/", url.lstrip("/"))
+        headers = get_auth_header(cls)
+
+    while True:
+        attempt += 1
+        op_id = _generate_operation_id("GET", url, attempt)
+        timeout_cfg = aiohttp.ClientTimeout(total=timeout)
+
+        is_path_sink = isinstance(dest, (str, Path))
+        fhandle = None
+        session: Optional[aiohttp.ClientSession] = None
+        stop_evt: Optional[asyncio.Event] = None
+        monitor_task: Optional[asyncio.Task] = None
+        req_task: Optional[asyncio.Task] = None
+
+        try:
+            with contextlib.suppress(Exception):
+                request_logger.log_request_response(operation_id=op_id, request_method="GET", request_url=url)
+
+            session = aiohttp.ClientSession(timeout=timeout_cfg)
+            stop_evt = asyncio.Event()
+
+            async def _monitor():
+                try:
+                    while not stop_evt.is_set():
+                        if is_processing_interrupted():
+                            return
+                        await asyncio.sleep(1.0)
+                except asyncio.CancelledError:
+                    return
+
+            monitor_task = asyncio.create_task(_monitor())
+
+            req_task = asyncio.create_task(session.get(url, headers=headers))
+            done, pending = await asyncio.wait({req_task, monitor_task}, return_when=asyncio.FIRST_COMPLETED)
+
+            if monitor_task in done and req_task in pending:
+                req_task.cancel()
+                with contextlib.suppress(Exception):
+                    await req_task
+                raise ProcessingInterrupted("Task cancelled")
+
+            try:
+                resp = await req_task
+            except asyncio.CancelledError:
+                raise ProcessingInterrupted("Task cancelled") from None
+
+            async with resp:
+                if resp.status >= 400:
+                    with contextlib.suppress(Exception):
+                        try:
+                            body = await resp.json()
+                        except (ContentTypeError, ValueError):
+                            text = await resp.text()
+                            body = text if len(text) <= 4096 else f"[text {len(text)} bytes]"
+                        request_logger.log_request_response(
+                            operation_id=op_id,
+                            request_method="GET",
+                            request_url=url,
+                            response_status_code=resp.status,
+                            response_headers=dict(resp.headers),
+                            response_content=body,
+                            error_message=f"HTTP {resp.status}",
+                        )
+
+                    if resp.status in _RETRY_STATUS and attempt <= max_retries:
+                        await sleep_with_interrupt(delay, cls, None, None, None)
+                        delay *= retry_backoff
+                        continue
+                    raise Exception(f"Failed to download (HTTP {resp.status}).")
+
+                if is_path_sink:
+                    p = Path(str(dest))
+                    with contextlib.suppress(Exception):
+                        p.parent.mkdir(parents=True, exist_ok=True)
+                    fhandle = open(p, "wb")
+                    sink = fhandle
+                else:
+                    sink = dest  # BytesIO or file-like
+
+                written = 0
+                while True:
+                    try:
+                        chunk = await asyncio.wait_for(resp.content.read(1024 * 1024), timeout=1.0)
+                    except asyncio.TimeoutError:
+                        chunk = b""
+                    except asyncio.CancelledError:
+                        raise ProcessingInterrupted("Task cancelled") from None
+
+                    if is_processing_interrupted():
+                        raise ProcessingInterrupted("Task cancelled")
+
+                    if not chunk:
+                        if resp.content.at_eof():
+                            break
+                        continue
+
+                    sink.write(chunk)
+                    written += len(chunk)
+
+                if isinstance(dest, BytesIO):
+                    with contextlib.suppress(Exception):
+                        dest.seek(0)
+
+                with contextlib.suppress(Exception):
+                    request_logger.log_request_response(
+                        operation_id=op_id,
+                        request_method="GET",
+                        request_url=url,
+                        response_status_code=resp.status,
+                        response_headers=dict(resp.headers),
+                        response_content=f"[streamed {written} bytes to dest]",
+                    )
+                return
+        except asyncio.CancelledError:
+            raise ProcessingInterrupted("Task cancelled") from None
+        except (ClientError, OSError) as e:
+            if attempt <= max_retries:
+                with contextlib.suppress(Exception):
+                    request_logger.log_request_response(
+                        operation_id=op_id,
+                        request_method="GET",
+                        request_url=url,
+                        error_message=f"{type(e).__name__}: {str(e)} (will retry)",
+                    )
+                await sleep_with_interrupt(delay, cls, None, None, None)
+                delay *= retry_backoff
+                continue
+
+            diag = await _diagnose_connectivity()
+            if not diag["internet_accessible"]:
+                raise LocalNetworkError(
+                    "Unable to connect to the network. Please check your internet connection and try again."
+                ) from e
+            raise ApiServerError("The remote service appears unreachable at this time.") from e
+        finally:
+            if stop_evt is not None:
+                stop_evt.set()
+            if monitor_task:
+                monitor_task.cancel()
+                with contextlib.suppress(Exception):
+                    await monitor_task
+            if req_task and not req_task.done():
+                req_task.cancel()
+                with contextlib.suppress(Exception):
+                    await req_task
+            if session:
+                with contextlib.suppress(Exception):
+                    await session.close()
+            if fhandle:
+                with contextlib.suppress(Exception):
+                    fhandle.flush()
+                    fhandle.close()
+
+
+async def download_url_to_image_tensor(
+    url: str,
+    *,
+    timeout: float = None,
+    cls: type[COMFY_IO.ComfyNode] = None,
+) -> torch.Tensor:
+    """Downloads an image from a URL and returns a [B, H, W, C] tensor."""
+    result = BytesIO()
+    await download_url_to_bytesio(url, result, timeout=timeout, cls=cls)
+    return bytesio_to_image_tensor(result)
+
+
+async def download_url_to_video_output(
+    video_url: str,
+    *,
+    timeout: float = None,
+    max_retries: int = 5,
+    cls: type[COMFY_IO.ComfyNode] = None,
+) -> VideoFromFile:
+    """Downloads a video from a URL and returns a `VIDEO` output."""
+    result = BytesIO()
+    await download_url_to_bytesio(video_url, result, timeout=timeout, max_retries=max_retries, cls=cls)
+    return VideoFromFile(result)
+
+
+async def download_url_as_bytesio(
+    url: str,
+    *,
+    timeout: float = None,
+    cls: type[COMFY_IO.ComfyNode] = None,
+) -> BytesIO:
+    """Downloads content from a URL and returns a new BytesIO (rewound to 0)."""
+    result = BytesIO()
+    await download_url_to_bytesio(url, result, timeout=timeout, cls=cls)
+    return result
+
+
+def _generate_operation_id(method: str, url: str, attempt: int) -> str:
+    try:
+        parsed = urlparse(url)
+        slug = (parsed.path.rsplit("/", 1)[-1] or parsed.netloc or "download").strip("/").replace("/", "_")
+    except Exception:
+        slug = "download"
+    return f"{method}_{slug}_try{attempt}_{uuid.uuid4().hex[:8]}"

comfy_api_nodes/util/upload_helpers.py

@@ -0,0 +1,338 @@
+import asyncio
+import contextlib
+import logging
+import time
+import uuid
+from io import BytesIO
+from typing import Optional, Union
+from urllib.parse import urlparse
+
+import aiohttp
+import torch
+from pydantic import BaseModel, Field
+
+from comfy_api.latest import IO, Input
+from comfy_api.util import VideoCodec, VideoContainer
+from comfy_api_nodes.apis import request_logger
+
+from ._helpers import is_processing_interrupted, sleep_with_interrupt
+from .client import (
+    ApiEndpoint,
+    _diagnose_connectivity,
+    _display_time_progress,
+    sync_op,
+)
+from .common_exceptions import ApiServerError, LocalNetworkError, ProcessingInterrupted
+from .conversions import (
+    audio_ndarray_to_bytesio,
+    audio_tensor_to_contiguous_ndarray,
+    tensor_to_bytesio,
+)
+
+
+class UploadRequest(BaseModel):
+    file_name: str = Field(..., description="Filename to upload")
+    content_type: Optional[str] = Field(
+        None,
+        description="Mime type of the file. For example: image/png, image/jpeg, video/mp4, etc.",
+    )
+
+
+class UploadResponse(BaseModel):
+    download_url: str = Field(..., description="URL to GET uploaded file")
+    upload_url: str = Field(..., description="URL to PUT file to upload")
+
+
+async def upload_images_to_comfyapi(
+    cls: type[IO.ComfyNode],
+    image: torch.Tensor,
+    *,
+    max_images: int = 8,
+    mime_type: Optional[str] = None,
+    wait_label: Optional[str] = "Uploading",
+) -> list[str]:
+    """
+    Uploads images to ComfyUI API and returns download URLs.
+    To upload multiple images, stack them in the batch dimension first.
+    """
+    # if batch, try to upload each file if max_images is greater than 0
+    download_urls: list[str] = []
+    is_batch = len(image.shape) > 3
+    batch_len = image.shape[0] if is_batch else 1
+
+    for idx in range(min(batch_len, max_images)):
+        tensor = image[idx] if is_batch else image
+        img_io = tensor_to_bytesio(tensor, mime_type=mime_type)
+        url = await upload_file_to_comfyapi(cls, img_io, img_io.name, mime_type, wait_label)
+        download_urls.append(url)
+    return download_urls
+
+
+async def upload_audio_to_comfyapi(
+    cls: type[IO.ComfyNode],
+    audio: Input.Audio,
+    *,
+    container_format: str = "mp4",
+    codec_name: str = "aac",
+    mime_type: str = "audio/mp4",
+    filename: str = "uploaded_audio.mp4",
+) -> str:
+    """
+    Uploads a single audio input to ComfyUI API and returns its download URL.
+    Encodes the raw waveform into the specified format before uploading.
+    """
+    sample_rate: int = audio["sample_rate"]
+    waveform: torch.Tensor = audio["waveform"]
+    audio_data_np = audio_tensor_to_contiguous_ndarray(waveform)
+    audio_bytes_io = audio_ndarray_to_bytesio(audio_data_np, sample_rate, container_format, codec_name)
+    return await upload_file_to_comfyapi(cls, audio_bytes_io, filename, mime_type)
+
+
+async def upload_video_to_comfyapi(
+    cls: type[IO.ComfyNode],
+    video: Input.Video,
+    *,
+    container: VideoContainer = VideoContainer.MP4,
+    codec: VideoCodec = VideoCodec.H264,
+    max_duration: Optional[int] = None,
+) -> str:
+    """
+    Uploads a single video to ComfyUI API and returns its download URL.
+    Uses the specified container and codec for saving the video before upload.
+    """
+    if max_duration is not None:
+        try:
+            actual_duration = video.get_duration()
+            if actual_duration > max_duration:
+                raise ValueError(
+                    f"Video duration ({actual_duration:.2f}s) exceeds the maximum allowed ({max_duration}s)."
+                )
+        except Exception as e:
+            logging.error("Error getting video duration: %s", str(e))
+            raise ValueError(f"Could not verify video duration from source: {e}") from e
+
+    upload_mime_type = f"video/{container.value.lower()}"
+    filename = f"uploaded_video.{container.value.lower()}"
+
+    # Convert VideoInput to BytesIO using specified container/codec
+    video_bytes_io = BytesIO()
+    video.save_to(video_bytes_io, format=container, codec=codec)
+    video_bytes_io.seek(0)
+
+    return await upload_file_to_comfyapi(cls, video_bytes_io, filename, upload_mime_type)
+
+
+async def upload_file_to_comfyapi(
+    cls: type[IO.ComfyNode],
+    file_bytes_io: BytesIO,
+    filename: str,
+    upload_mime_type: Optional[str],
+    wait_label: Optional[str] = "Uploading",
+) -> str:
+    """Uploads a single file to ComfyUI API and returns its download URL."""
+    if upload_mime_type is None:
+        request_object = UploadRequest(file_name=filename)
+    else:
+        request_object = UploadRequest(file_name=filename, content_type=upload_mime_type)
+    create_resp = await sync_op(
+        cls,
+        endpoint=ApiEndpoint(path="/customers/storage", method="POST"),
+        data=request_object,
+        response_model=UploadResponse,
+        final_label_on_success=None,
+        monitor_progress=False,
+    )
+    await upload_file(
+        cls,
+        create_resp.upload_url,
+        file_bytes_io,
+        content_type=upload_mime_type,
+        wait_label=wait_label,
+    )
+    return create_resp.download_url
+
+
+async def upload_file(
+    cls: type[IO.ComfyNode],
+    upload_url: str,
+    file: Union[BytesIO, str],
+    *,
+    content_type: Optional[str] = None,
+    max_retries: int = 3,
+    retry_delay: float = 1.0,
+    retry_backoff: float = 2.0,
+    wait_label: Optional[str] = None,
+) -> None:
+    """
+    Upload a file to a signed URL (e.g., S3 pre-signed PUT) with retries, Comfy progress display, and interruption.
+
+    Args:
+        cls: Node class (provides auth context + UI progress hooks).
+        upload_url: Pre-signed PUT URL.
+        file: BytesIO or path string.
+        content_type: Explicit MIME type. If None, we *suppress* Content-Type.
+        max_retries: Maximum retry attempts.
+        retry_delay: Initial delay in seconds.
+        retry_backoff: Exponential backoff factor.
+        wait_label: Progress label shown in Comfy UI.
+
+    Raises:
+        ProcessingInterrupted, LocalNetworkError, ApiServerError, Exception
+    """
+    if isinstance(file, BytesIO):
+        with contextlib.suppress(Exception):
+            file.seek(0)
+        data = file.read()
+    elif isinstance(file, str):
+        with open(file, "rb") as f:
+            data = f.read()
+    else:
+        raise ValueError("file must be a BytesIO or a filesystem path string")
+
+    headers: dict[str, str] = {}
+    skip_auto_headers: set[str] = set()
+    if content_type:
+        headers["Content-Type"] = content_type
+    else:
+        skip_auto_headers.add("Content-Type")  # Don't let aiohttp add Content-Type, it can break the signed request
+
+    attempt = 0
+    delay = retry_delay
+    start_ts = time.monotonic()
+    op_uuid = uuid.uuid4().hex[:8]
+    while True:
+        attempt += 1
+        operation_id = _generate_operation_id("PUT", upload_url, attempt, op_uuid)
+        timeout = aiohttp.ClientTimeout(total=None)
+        stop_evt = asyncio.Event()
+
+        async def _monitor():
+            try:
+                while not stop_evt.is_set():
+                    if is_processing_interrupted():
+                        return
+                    if wait_label:
+                        _display_time_progress(cls, wait_label, int(time.monotonic() - start_ts), None)
+                    await asyncio.sleep(1.0)
+            except asyncio.CancelledError:
+                return
+
+        monitor_task = asyncio.create_task(_monitor())
+        sess: Optional[aiohttp.ClientSession] = None
+        try:
+            try:
+                request_logger.log_request_response(
+                    operation_id=operation_id,
+                    request_method="PUT",
+                    request_url=upload_url,
+                    request_headers=headers or None,
+                    request_params=None,
+                    request_data=f"[File data {len(data)} bytes]",
+                )
+            except Exception as e:
+                logging.debug("[DEBUG] upload request logging failed: %s", e)
+
+            sess = aiohttp.ClientSession(timeout=timeout)
+            req = sess.put(upload_url, data=data, headers=headers, skip_auto_headers=skip_auto_headers)
+            req_task = asyncio.create_task(req)
+
+            done, pending = await asyncio.wait({req_task, monitor_task}, return_when=asyncio.FIRST_COMPLETED)
+
+            if monitor_task in done and req_task in pending:
+                req_task.cancel()
+                raise ProcessingInterrupted("Upload cancelled")
+
+            try:
+                resp = await req_task
+            except asyncio.CancelledError:
+                raise ProcessingInterrupted("Upload cancelled") from None
+
+            async with resp:
+                if resp.status >= 400:
+                    with contextlib.suppress(Exception):
+                        try:
+                            body = await resp.json()
+                        except Exception:
+                            body = await resp.text()
+                        msg = f"Upload failed with status {resp.status}"
+                        request_logger.log_request_response(
+                            operation_id=operation_id,
+                            request_method="PUT",
+                            request_url=upload_url,
+                            response_status_code=resp.status,
+                            response_headers=dict(resp.headers),
+                            response_content=body,
+                            error_message=msg,
+                        )
+                    if resp.status in {408, 429, 500, 502, 503, 504} and attempt <= max_retries:
+                        await sleep_with_interrupt(
+                            delay,
+                            cls,
+                            wait_label,
+                            start_ts,
+                            None,
+                            display_callback=_display_time_progress if wait_label else None,
+                        )
+                        delay *= retry_backoff
+                        continue
+                    raise Exception(f"Failed to upload (HTTP {resp.status}).")
+                try:
+                    request_logger.log_request_response(
+                        operation_id=operation_id,
+                        request_method="PUT",
+                        request_url=upload_url,
+                        response_status_code=resp.status,
+                        response_headers=dict(resp.headers),
+                        response_content="File uploaded successfully.",
+                    )
+                except Exception as e:
+                    logging.debug("[DEBUG] upload response logging failed: %s", e)
+                return
+        except asyncio.CancelledError:
+            raise ProcessingInterrupted("Task cancelled") from None
+        except (aiohttp.ClientError, OSError) as e:
+            if attempt <= max_retries:
+                with contextlib.suppress(Exception):
+                    request_logger.log_request_response(
+                        operation_id=operation_id,
+                        request_method="PUT",
+                        request_url=upload_url,
+                        request_headers=headers or None,
+                        request_data=f"[File data {len(data)} bytes]",
+                        error_message=f"{type(e).__name__}: {str(e)} (will retry)",
+                    )
+                await sleep_with_interrupt(
+                    delay,
+                    cls,
+                    wait_label,
+                    start_ts,
+                    None,
+                    display_callback=_display_time_progress if wait_label else None,
+                )
+                delay *= retry_backoff
+                continue
+
+            diag = await _diagnose_connectivity()
+            if not diag["internet_accessible"]:
+                raise LocalNetworkError(
+                    "Unable to connect to the network. Please check your internet connection and try again."
+                ) from e
+            raise ApiServerError("The API service appears unreachable at this time.") from e
+        finally:
+            stop_evt.set()
+            if monitor_task:
+                monitor_task.cancel()
+                with contextlib.suppress(Exception):
+                    await monitor_task
+            if sess:
+                with contextlib.suppress(Exception):
+                    await sess.close()
+
+
+def _generate_operation_id(method: str, url: str, attempt: int, op_uuid: str) -> str:
+    try:
+        parsed = urlparse(url)
+        slug = (parsed.path.rsplit("/", 1)[-1] or parsed.netloc or "upload").strip("/").replace("/", "_")
+    except Exception:
+        slug = "upload"
+    return f"{method}_{slug}_{op_uuid}_try{attempt}"

comfy_api_nodes/util/validation_utils.py

@@ -2,6 +2,8 @@ import logging
 from typing import Optional
 
 import torch
+
+from comfy_api.input.video_types import VideoInput
 from comfy_api.latest import Input
 
 
@@ -28,76 +30,69 @@ def validate_image_dimensions(
     if max_width is not None and width > max_width:
         raise ValueError(f"Image width must be at most {max_width}px, got {width}px")
     if min_height is not None and height < min_height:
-        raise ValueError(
-            f"Image height must be at least {min_height}px, got {height}px"
-        )
+        raise ValueError(f"Image height must be at least {min_height}px, got {height}px")
     if max_height is not None and height > max_height:
         raise ValueError(f"Image height must be at most {max_height}px, got {height}px")
 
 
 def validate_image_aspect_ratio(
     image: torch.Tensor,
-    min_aspect_ratio: Optional[float] = None,
-    max_aspect_ratio: Optional[float] = None,
-):
-    width, height = get_image_dimensions(image)
-    aspect_ratio = width / height
-
-    if min_aspect_ratio is not None and aspect_ratio < min_aspect_ratio:
-        raise ValueError(
-            f"Image aspect ratio must be at least {min_aspect_ratio}, got {aspect_ratio}"
-        )
-    if max_aspect_ratio is not None and aspect_ratio > max_aspect_ratio:
-        raise ValueError(
-            f"Image aspect ratio must be at most {max_aspect_ratio}, got {aspect_ratio}"
-        )
-
-
-def validate_image_aspect_ratio_range(
-    image: torch.Tensor,
-    min_ratio: tuple[float, float],  # e.g. (1, 4)
-    max_ratio: tuple[float, float],  # e.g. (4, 1)
+    min_ratio: Optional[tuple[float, float]] = None,  # e.g. (1, 4)
+    max_ratio: Optional[tuple[float, float]] = None,  # e.g. (4, 1)
     *,
-    strict: bool = True,             # True -> (min, max); False -> [min, max]
+    strict: bool = True,  # True -> (min, max); False -> [min, max]
 ) -> float:
-    a1, b1 = min_ratio
-    a2, b2 = max_ratio
-    if a1 <= 0 or b1 <= 0 or a2 <= 0 or b2 <= 0:
-        raise ValueError("Ratios must be positive, like (1, 4) or (4, 1).")
-    lo, hi = (a1 / b1), (a2 / b2)
-    if lo > hi:
-        lo, hi = hi, lo
-        a1, b1, a2, b2 = a2, b2, a1, b1  # swap only for error text
+    """Validates that image aspect ratio is within min and max. If a bound is None, that side is not checked."""
     w, h = get_image_dimensions(image)
     if w <= 0 or h <= 0:
         raise ValueError(f"Invalid image dimensions: {w}x{h}")
     ar = w / h
-    ok = (lo < ar < hi) if strict else (lo <= ar <= hi)
-    if not ok:
-        op = "<" if strict else "≤"
-        raise ValueError(f"Image aspect ratio {ar:.6g} is outside allowed range: {a1}:{b1} {op} ratio {op} {a2}:{b2}")
+    _assert_ratio_bounds(ar, min_ratio=min_ratio, max_ratio=max_ratio, strict=strict)
     return ar
 
 
-def validate_aspect_ratio_closeness(
-    start_img,
-    end_img,
-    min_rel: float,
-    max_rel: float,
+def validate_images_aspect_ratio_closeness(
+    first_image: torch.Tensor,
+    second_image: torch.Tensor,
+    min_rel: float,   # e.g. 0.8
+    max_rel: float,   # e.g. 1.25
     *,
-    strict: bool = False,   # True => exclusive, False => inclusive
-) -> None:
-    w1, h1 = get_image_dimensions(start_img)
-    w2, h2 = get_image_dimensions(end_img)
+    strict: bool = False,  # True -> (min, max); False -> [min, max]
+) -> float:
+    """
+    Validates that the two images' aspect ratios are 'close'.
+    The closeness factor is C = max(ar1, ar2) / min(ar1, ar2)  (C >= 1).
+    We require C <= limit, where limit = max(max_rel, 1.0 / min_rel).
+
+    Returns the computed closeness factor C.
+    """
+    w1, h1 = get_image_dimensions(first_image)
+    w2, h2 = get_image_dimensions(second_image)
     if min(w1, h1, w2, h2) <= 0:
         raise ValueError("Invalid image dimensions")
     ar1 = w1 / h1
     ar2 = w2 / h2
-    # Normalize so it is symmetric (no need to check both ar1/ar2 and ar2/ar1)
     closeness = max(ar1, ar2) / min(ar1, ar2)
-    limit = max(max_rel, 1.0 / min_rel)  # for 0.8..1.25 this is 1.25
+    limit = max(max_rel, 1.0 / min_rel)
     if (closeness >= limit) if strict else (closeness > limit):
-        raise ValueError(f"Aspect ratios must be close: start/end={ar1/ar2:.4f}, allowed range {min_rel}–{max_rel}.")
+        raise ValueError(
+            f"Aspect ratios must be close: ar1/ar2={ar1/ar2:.2g}, "
+            f"allowed range {min_rel}–{max_rel} (limit {limit:.2g})."
+        )
+    return closeness
+
+
+def validate_aspect_ratio_string(
+    aspect_ratio: str,
+    min_ratio: Optional[tuple[float, float]] = None,  # e.g. (1, 4)
+    max_ratio: Optional[tuple[float, float]] = None,  # e.g. (4, 1)
+    *,
+    strict: bool = False,  # True -> (min, max); False -> [min, max]
+) -> float:
+    """Parses 'X:Y' and validates it against optional bounds. Returns the numeric ratio."""
+    ar = _parse_aspect_ratio_string(aspect_ratio)
+    _assert_ratio_bounds(ar, min_ratio=min_ratio, max_ratio=max_ratio, strict=strict)
+    return ar
 
 
 def validate_video_dimensions(
@@ -118,9 +113,7 @@ def validate_video_dimensions(
     if max_width is not None and width > max_width:
         raise ValueError(f"Video width must be at most {max_width}px, got {width}px")
     if min_height is not None and height < min_height:
-        raise ValueError(
-            f"Video height must be at least {min_height}px, got {height}px"
-        )
+        raise ValueError(f"Video height must be at least {min_height}px, got {height}px")
     if max_height is not None and height > max_height:
         raise ValueError(f"Video height must be at most {max_height}px, got {height}px")
 
@@ -138,13 +131,9 @@ def validate_video_duration(
 
     epsilon = 0.0001
     if min_duration is not None and min_duration - epsilon > duration:
-        raise ValueError(
-            f"Video duration must be at least {min_duration}s, got {duration}s"
-        )
+        raise ValueError(f"Video duration must be at least {min_duration}s, got {duration}s")
     if max_duration is not None and duration > max_duration + epsilon:
-        raise ValueError(
-            f"Video duration must be at most {max_duration}s, got {duration}s"
-        )
+        raise ValueError(f"Video duration must be at most {max_duration}s, got {duration}s")
 
 
 def get_number_of_images(images):
@@ -165,3 +154,77 @@ def validate_audio_duration(
         raise ValueError(f"Audio duration must be at least {min_duration}s, got {dur + eps:.2f}s")
     if max_duration is not None and dur - eps > max_duration:
         raise ValueError(f"Audio duration must be at most {max_duration}s, got {dur - eps:.2f}s")
+
+
+def validate_string(
+    string: str,
+    strip_whitespace=True,
+    field_name="prompt",
+    min_length=None,
+    max_length=None,
+):
+    if string is None:
+        raise Exception(f"Field '{field_name}' cannot be empty.")
+    if strip_whitespace:
+        string = string.strip()
+    if min_length and len(string) < min_length:
+        raise Exception(
+            f"Field '{field_name}' cannot be shorter than {min_length} characters; was {len(string)} characters long."
+        )
+    if max_length and len(string) > max_length:
+        raise Exception(
+            f" Field '{field_name} cannot be longer than {max_length} characters; was {len(string)} characters long."
+        )
+
+
+def validate_container_format_is_mp4(video: VideoInput) -> None:
+    """Validates video container format is MP4."""
+    container_format = video.get_container_format()
+    if container_format not in ["mp4", "mov,mp4,m4a,3gp,3g2,mj2"]:
+        raise ValueError(f"Only MP4 container format supported. Got: {container_format}")
+
+
+def _ratio_from_tuple(r: tuple[float, float]) -> float:
+    a, b = r
+    if a <= 0 or b <= 0:
+        raise ValueError(f"Ratios must be positive, got {a}:{b}.")
+    return a / b
+
+
+def _assert_ratio_bounds(
+    ar: float,
+    *,
+    min_ratio: Optional[tuple[float, float]] = None,
+    max_ratio: Optional[tuple[float, float]] = None,
+    strict: bool = True,
+) -> None:
+    """Validate a numeric aspect ratio against optional min/max ratio bounds."""
+    lo = _ratio_from_tuple(min_ratio) if min_ratio is not None else None
+    hi = _ratio_from_tuple(max_ratio) if max_ratio is not None else None
+
+    if lo is not None and hi is not None and lo > hi:
+        lo, hi = hi, lo  # normalize order if caller swapped them
+
+    if lo is not None:
+        if (ar <= lo) if strict else (ar < lo):
+            op = "<" if strict else "≤"
+            raise ValueError(f"Aspect ratio `{ar:.2g}` must be {op} {lo:.2g}.")
+    if hi is not None:
+        if (ar >= hi) if strict else (ar > hi):
+            op = "<" if strict else "≤"
+            raise ValueError(f"Aspect ratio `{ar:.2g}` must be {op} {hi:.2g}.")
+
+
+def _parse_aspect_ratio_string(ar_str: str) -> float:
+    """Parse 'X:Y' with integer parts into a positive float ratio X/Y."""
+    parts = ar_str.split(":")
+    if len(parts) != 2:
+        raise ValueError(f"Aspect ratio must be 'X:Y' (e.g., 16:9), got '{ar_str}'.")
+    try:
+        a = int(parts[0].strip())
+        b = int(parts[1].strip())
+    except ValueError as exc:
+        raise ValueError(f"Aspect ratio must contain integers separated by ':', got '{ar_str}'.") from exc
+    if a <= 0 or b <= 0:
+        raise ValueError(f"Aspect ratio parts must be positive integers, got {a}:{b}.")
+    return a / b

comfy_execution/caching.py

@@ -1,4 +1,9 @@
+import bisect
+import gc
 import itertools
+import psutil
+import time
+import torch
 from typing import Sequence, Mapping, Dict
 from comfy_execution.graph import DynamicPrompt
 from abc import ABC, abstractmethod
@@ -48,7 +53,7 @@ class Unhashable:
 def to_hashable(obj):
     # So that we don't infinitely recurse since frozenset and tuples
     # are Sequences.
-    if isinstance(obj, (int, float, str, bool, type(None))):
+    if isinstance(obj, (int, float, str, bool, bytes, type(None))):
         return obj
     elif isinstance(obj, Mapping):
         return frozenset([(to_hashable(k), to_hashable(v)) for k, v in sorted(obj.items())])
@@ -188,6 +193,9 @@ class BasicCache:
         self._clean_cache()
         self._clean_subcaches()
 
+    def poll(self, **kwargs):
+        pass
+
     def _set_immediate(self, node_id, value):
         assert self.initialized
         cache_key = self.cache_key_set.get_data_key(node_id)
@@ -265,6 +273,29 @@ class HierarchicalCache(BasicCache):
         assert cache is not None
         return await cache._ensure_subcache(node_id, children_ids)
 
+class NullCache:
+
+    async def set_prompt(self, dynprompt, node_ids, is_changed_cache):
+        pass
+
+    def all_node_ids(self):
+        return []
+
+    def clean_unused(self):
+        pass
+
+    def poll(self, **kwargs):
+        pass
+
+    def get(self, node_id):
+        return None
+
+    def set(self, node_id, value):
+        pass
+
+    async def ensure_subcache_for(self, node_id, children_ids):
+        return self
+
 class LRUCache(BasicCache):
     def __init__(self, key_class, max_size=100):
         super().__init__(key_class)
@@ -318,155 +349,75 @@ class LRUCache(BasicCache):
         return self
 
 
-class DependencyAwareCache(BasicCache):
-    """
-    A cache implementation that tracks dependencies between nodes and manages
-    their execution and caching accordingly. It extends the BasicCache class.
-    Nodes are removed from this cache once all of their descendants have been
-    executed.
-    """
+#Iterating the cache for usage analysis might be expensive, so if we trigger make sure
+#to take a chunk out to give breathing space on high-node / low-ram-per-node flows.
+
+RAM_CACHE_HYSTERESIS = 1.1
+
+#This is kinda in GB but not really. It needs to be non-zero for the below heuristic
+#and as long as Multi GB models dwarf this it will approximate OOM scoring OK
+
+RAM_CACHE_DEFAULT_RAM_USAGE = 0.1
+
+#Exponential bias towards evicting older workflows so garbage will be taken out
+#in constantly changing setups.
+
+RAM_CACHE_OLD_WORKFLOW_OOM_MULTIPLIER = 1.3
+
+class RAMPressureCache(LRUCache):
 
     def __init__(self, key_class):
-        """
-        Initialize the DependencyAwareCache.
-
-        Args:
-            key_class: The class used for generating cache keys.
-        """
-        super().__init__(key_class)
-        self.descendants = {}  # Maps node_id -> set of descendant node_ids
-        self.ancestors = {}    # Maps node_id -> set of ancestor node_ids
-        self.executed_nodes = set()  # Tracks nodes that have been executed
-
-    async def set_prompt(self, dynprompt, node_ids, is_changed_cache):
-        """
-        Clear the entire cache and rebuild the dependency graph.
-
-        Args:
-            dynprompt: The dynamic prompt object containing node information.
-            node_ids: List of node IDs to initialize the cache for.
-            is_changed_cache: Flag indicating if the cache has changed.
-        """
-        # Clear all existing cache data
-        self.cache.clear()
-        self.subcaches.clear()
-        self.descendants.clear()
-        self.ancestors.clear()
-        self.executed_nodes.clear()
-
-        # Call the parent method to initialize the cache with the new prompt
-        await super().set_prompt(dynprompt, node_ids, is_changed_cache)
-
-        # Rebuild the dependency graph
-        self._build_dependency_graph(dynprompt, node_ids)
-
-    def _build_dependency_graph(self, dynprompt, node_ids):
-        """
-        Build the dependency graph for all nodes.
-
-        Args:
-            dynprompt: The dynamic prompt object containing node information.
-            node_ids: List of node IDs to build the graph for.
-        """
-        self.descendants.clear()
-        self.ancestors.clear()
-        for node_id in node_ids:
-            self.descendants[node_id] = set()
-            self.ancestors[node_id] = set()
-
-        for node_id in node_ids:
-            inputs = dynprompt.get_node(node_id)["inputs"]
-            for input_data in inputs.values():
-                if is_link(input_data):  # Check if the input is a link to another node
-                    ancestor_id = input_data[0]
-                    self.descendants[ancestor_id].add(node_id)
-                    self.ancestors[node_id].add(ancestor_id)
-
-    def set(self, node_id, value):
-        """
-        Mark a node as executed and store its value in the cache.
-
-        Args:
-            node_id: The ID of the node to store.
-            value: The value to store for the node.
-        """
-        self._set_immediate(node_id, value)
-        self.executed_nodes.add(node_id)
-        self._cleanup_ancestors(node_id)
-
-    def get(self, node_id):
-        """
-        Retrieve the cached value for a node.
-
-        Args:
-            node_id: The ID of the node to retrieve.
-
-        Returns:
-            The cached value for the node.
-        """
-        return self._get_immediate(node_id)
-
-    async def ensure_subcache_for(self, node_id, children_ids):
-        """
-        Ensure a subcache exists for a node and update dependencies.
-
-        Args:
-            node_id: The ID of the parent node.
-            children_ids: List of child node IDs to associate with the parent node.
-
-        Returns:
-            The subcache object for the node.
-        """
-        subcache = await super()._ensure_subcache(node_id, children_ids)
-        for child_id in children_ids:
-            self.descendants[node_id].add(child_id)
-            self.ancestors[child_id].add(node_id)
-        return subcache
-
-    def _cleanup_ancestors(self, node_id):
-        """
-        Check if ancestors of a node can be removed from the cache.
-
-        Args:
-            node_id: The ID of the node whose ancestors are to be checked.
-        """
-        for ancestor_id in self.ancestors.get(node_id, []):
-            if ancestor_id in self.executed_nodes:
-                # Remove ancestor if all its descendants have been executed
-                if all(descendant in self.executed_nodes for descendant in self.descendants[ancestor_id]):
-                    self._remove_node(ancestor_id)
-
-    def _remove_node(self, node_id):
-        """
-        Remove a node from the cache.
-
-        Args:
-            node_id: The ID of the node to remove.
-        """
-        cache_key = self.cache_key_set.get_data_key(node_id)
-        if cache_key in self.cache:
-            del self.cache[cache_key]
-        subcache_key = self.cache_key_set.get_subcache_key(node_id)
-        if subcache_key in self.subcaches:
-            del self.subcaches[subcache_key]
+        super().__init__(key_class, 0)
+        self.timestamps = {}
 
     def clean_unused(self):
-        """
-        Clean up unused nodes. This is a no-op for this cache implementation.
-        """
-        pass
+        self._clean_subcaches()
 
-    def recursive_debug_dump(self):
-        """
-        Dump the cache and dependency graph for debugging.
+    def set(self, node_id, value):
+        self.timestamps[self.cache_key_set.get_data_key(node_id)] = time.time()
+        super().set(node_id, value)
 
-        Returns:
-            A list containing the cache state and dependency graph.
-        """
-        result = super().recursive_debug_dump()
-        result.append({
-            "descendants": self.descendants,
-            "ancestors": self.ancestors,
-            "executed_nodes": list(self.executed_nodes),
-        })
-        return result
+    def get(self, node_id):
+        self.timestamps[self.cache_key_set.get_data_key(node_id)] = time.time()
+        return super().get(node_id)
+
+    def poll(self, ram_headroom):
+        def _ram_gb():
+            return psutil.virtual_memory().available / (1024**3)
+
+        if _ram_gb() > ram_headroom:
+            return
+        gc.collect()
+        if _ram_gb() > ram_headroom:
+            return
+
+        clean_list = []
+
+        for key, (outputs, _), in self.cache.items():
+            oom_score =  RAM_CACHE_OLD_WORKFLOW_OOM_MULTIPLIER ** (self.generation - self.used_generation[key])
+
+            ram_usage = RAM_CACHE_DEFAULT_RAM_USAGE
+            def scan_list_for_ram_usage(outputs):
+                nonlocal ram_usage
+                if outputs is None:
+                    return
+                for output in outputs:
+                    if isinstance(output, list):
+                        scan_list_for_ram_usage(output)
+                    elif isinstance(output, torch.Tensor) and output.device.type == 'cpu':
+                        #score Tensors at a 50% discount for RAM usage as they are likely to
+                        #be high value intermediates
+                        ram_usage += (output.numel() * output.element_size()) * 0.5
+                    elif hasattr(output, "get_ram_usage"):
+                        ram_usage += output.get_ram_usage()
+            scan_list_for_ram_usage(outputs)
+
+            oom_score *= ram_usage
+            #In the case where we have no information on the node ram usage at all,
+            #break OOM score ties on the last touch timestamp (pure LRU)
+            bisect.insort(clean_list, (oom_score, self.timestamps[key], key))
+
+        while _ram_gb() < ram_headroom * RAM_CACHE_HYSTERESIS and clean_list:
+            _, _, key = clean_list.pop()
+            del self.cache[key]
+            gc.collect()

comfy_execution/graph.py

@@ -153,8 +153,9 @@ class TopologicalSort:
                         continue
                     _, _, input_info = self.get_input_info(unique_id, input_name)
                     is_lazy = input_info is not None and "lazy" in input_info and input_info["lazy"]
-                    if (include_lazy or not is_lazy) and not self.is_cached(from_node_id):
-                        node_ids.append(from_node_id)
+                    if (include_lazy or not is_lazy):
+                        if not self.is_cached(from_node_id):
+                            node_ids.append(from_node_id)
                         links.append((from_node_id, from_socket, unique_id))
 
         for link in links:
@@ -194,10 +195,40 @@ class ExecutionList(TopologicalSort):
         super().__init__(dynprompt)
         self.output_cache = output_cache
         self.staged_node_id = None
+        self.execution_cache = {}
+        self.execution_cache_listeners = {}
 
     def is_cached(self, node_id):
         return self.output_cache.get(node_id) is not None
 
+    def cache_link(self, from_node_id, to_node_id):
+        if not to_node_id in self.execution_cache:
+            self.execution_cache[to_node_id] = {}
+        self.execution_cache[to_node_id][from_node_id] = self.output_cache.get(from_node_id)
+        if not from_node_id in self.execution_cache_listeners:
+            self.execution_cache_listeners[from_node_id] = set()
+        self.execution_cache_listeners[from_node_id].add(to_node_id)
+
+    def get_cache(self, from_node_id, to_node_id):
+        if not to_node_id in self.execution_cache:
+            return None
+        value = self.execution_cache[to_node_id].get(from_node_id)
+        if value is None:
+            return None
+        #Write back to the main cache on touch.
+        self.output_cache.set(from_node_id, value)
+        return value
+
+    def cache_update(self, node_id, value):
+        if node_id in self.execution_cache_listeners:
+            for to_node_id in self.execution_cache_listeners[node_id]:
+                if to_node_id in self.execution_cache:
+                    self.execution_cache[to_node_id][node_id] = value
+
+    def add_strong_link(self, from_node_id, from_socket, to_node_id):
+        super().add_strong_link(from_node_id, from_socket, to_node_id)
+        self.cache_link(from_node_id, to_node_id)
+
     async def stage_node_execution(self):
         assert self.staged_node_id is None
         if self.is_empty():
@@ -277,6 +308,8 @@ class ExecutionList(TopologicalSort):
     def complete_node_execution(self):
         node_id = self.staged_node_id
         self.pop_node(node_id)
+        self.execution_cache.pop(node_id, None)
+        self.execution_cache_listeners.pop(node_id, None)
         self.staged_node_id = None
 
     def get_nodes_in_cycle(self):

comfy_extras/nodes_audio.py

@@ -142,9 +142,10 @@ def save_audio(self, audio, filename_prefix="ComfyUI", format="flac", prompt=Non
         for key, value in metadata.items():
             output_container.metadata[key] = value
 
+        layout = 'mono' if waveform.shape[0] == 1 else 'stereo'
         # Set up the output stream with appropriate properties
         if format == "opus":
-            out_stream = output_container.add_stream("libopus", rate=sample_rate)
+            out_stream = output_container.add_stream("libopus", rate=sample_rate, layout=layout)
             if quality == "64k":
                 out_stream.bit_rate = 64000
             elif quality == "96k":
@@ -156,7 +157,7 @@ def save_audio(self, audio, filename_prefix="ComfyUI", format="flac", prompt=Non
             elif quality == "320k":
                 out_stream.bit_rate = 320000
         elif format == "mp3":
-            out_stream = output_container.add_stream("libmp3lame", rate=sample_rate)
+            out_stream = output_container.add_stream("libmp3lame", rate=sample_rate, layout=layout)
             if quality == "V0":
                 #TODO i would really love to support V3 and V5 but there doesn't seem to be a way to set the qscale level, the property below is a bool
                 out_stream.codec_context.qscale = 1
@@ -165,9 +166,9 @@ def save_audio(self, audio, filename_prefix="ComfyUI", format="flac", prompt=Non
             elif quality == "320k":
                 out_stream.bit_rate = 320000
         else: #format == "flac":
-            out_stream = output_container.add_stream("flac", rate=sample_rate)
+            out_stream = output_container.add_stream("flac", rate=sample_rate, layout=layout)
 
-        frame = av.AudioFrame.from_ndarray(waveform.movedim(0, 1).reshape(1, -1).float().numpy(), format='flt', layout='mono' if waveform.shape[0] == 1 else 'stereo')
+        frame = av.AudioFrame.from_ndarray(waveform.movedim(0, 1).reshape(1, -1).float().numpy(), format='flt', layout=layout)
         frame.sample_rate = sample_rate
         frame.pts = 0
         output_container.mux(out_stream.encode(frame))

comfy_extras/nodes_controlnet.py

@@ -1,20 +1,26 @@
 from comfy.cldm.control_types import UNION_CONTROLNET_TYPES
 import nodes
 import comfy.utils
+from typing_extensions import override
+from comfy_api.latest import ComfyExtension, io
 
-class SetUnionControlNetType:
+class SetUnionControlNetType(io.ComfyNode):
     @classmethod
-    def INPUT_TYPES(s):
-        return {"required": {"control_net": ("CONTROL_NET", ),
-                             "type": (["auto"] + list(UNION_CONTROLNET_TYPES.keys()),)
-                             }}
+    def define_schema(cls):
+        return io.Schema(
+            node_id="SetUnionControlNetType",
+            category="conditioning/controlnet",
+            inputs=[
+                io.ControlNet.Input("control_net"),
+                io.Combo.Input("type", options=["auto"] + list(UNION_CONTROLNET_TYPES.keys())),
+            ],
+            outputs=[
+                io.ControlNet.Output(),
+            ],
+        )
 
-    CATEGORY = "conditioning/controlnet"
-    RETURN_TYPES = ("CONTROL_NET",)
-
-    FUNCTION = "set_controlnet_type"
-
-    def set_controlnet_type(self, control_net, type):
+    @classmethod
+    def execute(cls, control_net, type) -> io.NodeOutput:
         control_net = control_net.copy()
         type_number = UNION_CONTROLNET_TYPES.get(type, -1)
         if type_number >= 0:
@@ -22,27 +28,36 @@ class SetUnionControlNetType:
         else:
             control_net.set_extra_arg("control_type", [])
 
-        return (control_net,)
+        return io.NodeOutput(control_net)
 
-class ControlNetInpaintingAliMamaApply(nodes.ControlNetApplyAdvanced):
+    set_controlnet_type = execute  # TODO: remove
+
+
+class ControlNetInpaintingAliMamaApply(io.ComfyNode):
     @classmethod
-    def INPUT_TYPES(s):
-        return {"required": {"positive": ("CONDITIONING", ),
-                             "negative": ("CONDITIONING", ),
-                             "control_net": ("CONTROL_NET", ),
-                             "vae": ("VAE", ),
-                             "image": ("IMAGE", ),
-                             "mask": ("MASK", ),
-                             "strength": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 10.0, "step": 0.01}),
-                             "start_percent": ("FLOAT", {"default": 0.0, "min": 0.0, "max": 1.0, "step": 0.001}),
-                             "end_percent": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 1.0, "step": 0.001})
-                             }}
+    def define_schema(cls):
+        return io.Schema(
+            node_id="ControlNetInpaintingAliMamaApply",
+            category="conditioning/controlnet",
+            inputs=[
+                io.Conditioning.Input("positive"),
+                io.Conditioning.Input("negative"),
+                io.ControlNet.Input("control_net"),
+                io.Vae.Input("vae"),
+                io.Image.Input("image"),
+                io.Mask.Input("mask"),
+                io.Float.Input("strength", default=1.0, min=0.0, max=10.0, step=0.01),
+                io.Float.Input("start_percent", default=0.0, min=0.0, max=1.0, step=0.001),
+                io.Float.Input("end_percent", default=1.0, min=0.0, max=1.0, step=0.001),
+            ],
+            outputs=[
+                io.Conditioning.Output(display_name="positive"),
+                io.Conditioning.Output(display_name="negative"),
+            ],
+        )
 
-    FUNCTION = "apply_inpaint_controlnet"
-
-    CATEGORY = "conditioning/controlnet"
-
-    def apply_inpaint_controlnet(self, positive, negative, control_net, vae, image, mask, strength, start_percent, end_percent):
+    @classmethod
+    def execute(cls, positive, negative, control_net, vae, image, mask, strength, start_percent, end_percent) -> io.NodeOutput:
         extra_concat = []
         if control_net.concat_mask:
             mask = 1.0 - mask.reshape((-1, 1, mask.shape[-2], mask.shape[-1]))
@@ -50,11 +65,20 @@ class ControlNetInpaintingAliMamaApply(nodes.ControlNetApplyAdvanced):
             image = image * mask_apply.movedim(1, -1).repeat(1, 1, 1, image.shape[3])
             extra_concat = [mask]
 
-        return self.apply_controlnet(positive, negative, control_net, image, strength, start_percent, end_percent, vae=vae, extra_concat=extra_concat)
+        result = nodes.ControlNetApplyAdvanced().apply_controlnet(positive, negative, control_net, image, strength, start_percent, end_percent, vae=vae, extra_concat=extra_concat)
+        return io.NodeOutput(result[0], result[1])
+
+    apply_inpaint_controlnet = execute  # TODO: remove
 
 
+class ControlNetExtension(ComfyExtension):
+    @override
+    async def get_node_list(self) -> list[type[io.ComfyNode]]:
+        return [
+            SetUnionControlNetType,
+            ControlNetInpaintingAliMamaApply,
+        ]
 
-NODE_CLASS_MAPPINGS = {
-    "SetUnionControlNetType": SetUnionControlNetType,
-    "ControlNetInpaintingAliMamaApply": ControlNetInpaintingAliMamaApply,
-}
+
+async def comfy_entrypoint() -> ControlNetExtension:
+    return ControlNetExtension()

comfy_extras/nodes_easycache.py

@@ -244,6 +244,8 @@ class EasyCacheHolder:
             self.total_steps_skipped += 1
         batch_offset = x.shape[0] // len(uuids)
         for i, uuid in enumerate(uuids):
+            # slice out only what is relevant to this cond
+            batch_slice = [slice(i*batch_offset,(i+1)*batch_offset)]
             # if cached dims don't match x dims, cut off excess and hope for the best (cosmos world2video)
             if x.shape[1:] != self.uuid_cache_diffs[uuid].shape[1:]:
                 if not self.allow_mismatch:
@@ -261,9 +263,8 @@ class EasyCacheHolder:
                             slicing.append(slice(None, dim_u))
                     else:
                         slicing.append(slice(None))
-                slicing = [slice(i*batch_offset,(i+1)*batch_offset)] + slicing
-                x = x[slicing]
-            x += self.uuid_cache_diffs[uuid].to(x.device)
+                batch_slice = batch_slice + slicing
+            x[batch_slice] += self.uuid_cache_diffs[uuid].to(x.device)
         return x
 
     def update_cache_diff(self, output: torch.Tensor, x: torch.Tensor, uuids: list[UUID]):

comfy_extras/nodes_eps.py

@@ -1,5 +1,7 @@
+import torch
 from typing_extensions import override
 
+from comfy.k_diffusion.sampling import sigma_to_half_log_snr
 from comfy_api.latest import ComfyExtension, io
 
 
@@ -63,12 +65,105 @@ class EpsilonScaling(io.ComfyNode):
         return io.NodeOutput(model_clone)
 
 
+def compute_tsr_rescaling_factor(
+    snr: torch.Tensor, tsr_k: float, tsr_variance: float
+) -> torch.Tensor:
+    """Compute the rescaling score ratio in Temporal Score Rescaling.
+
+    See equation (6) in https://arxiv.org/pdf/2510.01184v1.
+    """
+    posinf_mask = torch.isposinf(snr)
+    rescaling_factor = (snr * tsr_variance + 1) / (snr * tsr_variance / tsr_k + 1)
+    return torch.where(posinf_mask, tsr_k, rescaling_factor) # when snr → inf, r = tsr_k
+
+
+class TemporalScoreRescaling(io.ComfyNode):
+    @classmethod
+    def define_schema(cls):
+        return io.Schema(
+            node_id="TemporalScoreRescaling",
+            display_name="TSR - Temporal Score Rescaling",
+            category="model_patches/unet",
+            inputs=[
+                io.Model.Input("model"),
+                io.Float.Input(
+                    "tsr_k",
+                    tooltip=(
+                        "Controls the rescaling strength.\n"
+                        "Lower k produces more detailed results; higher k produces smoother results in image generation. Setting k = 1 disables rescaling."
+                    ),
+                    default=0.95,
+                    min=0.01,
+                    max=100.0,
+                    step=0.001,
+                    display_mode=io.NumberDisplay.number,
+                ),
+                io.Float.Input(
+                    "tsr_sigma",
+                    tooltip=(
+                        "Controls how early rescaling takes effect.\n"
+                        "Larger values take effect earlier."
+                    ),
+                    default=1.0,
+                    min=0.01,
+                    max=100.0,
+                    step=0.001,
+                    display_mode=io.NumberDisplay.number,
+                ),
+            ],
+            outputs=[
+                io.Model.Output(
+                    display_name="patched_model",
+                ),
+            ],
+            description=(
+                "[Post-CFG Function]\n"
+                "TSR - Temporal Score Rescaling (2510.01184)\n\n"
+                "Rescaling the model's score or noise to steer the sampling diversity.\n"
+            ),
+        )
+
+    @classmethod
+    def execute(cls, model, tsr_k, tsr_sigma) -> io.NodeOutput:
+        tsr_variance = tsr_sigma**2
+
+        def temporal_score_rescaling(args):
+            denoised = args["denoised"]
+            x = args["input"]
+            sigma = args["sigma"]
+            curr_model = args["model"]
+
+            # No rescaling (r = 1) or no noise
+            if tsr_k == 1 or sigma == 0:
+                return denoised
+
+            model_sampling = curr_model.current_patcher.get_model_object("model_sampling")
+            half_log_snr = sigma_to_half_log_snr(sigma, model_sampling)
+            snr = (2 * half_log_snr).exp()
+
+            # No rescaling needed (r = 1)
+            if snr == 0:
+                return denoised
+
+            rescaling_r = compute_tsr_rescaling_factor(snr, tsr_k, tsr_variance)
+
+            # Derived from scaled_denoised = (x - r * sigma * noise) / alpha
+            alpha = sigma * half_log_snr.exp()
+            return torch.lerp(x / alpha, denoised, rescaling_r)
+
+        m = model.clone()
+        m.set_model_sampler_post_cfg_function(temporal_score_rescaling)
+        return io.NodeOutput(m)
+
+
 class EpsilonScalingExtension(ComfyExtension):
     @override
     async def get_node_list(self) -> list[type[io.ComfyNode]]:
         return [
             EpsilonScaling,
+            TemporalScoreRescaling,
         ]
 
+
 async def comfy_entrypoint() -> EpsilonScalingExtension:
     return EpsilonScalingExtension()

comfy_extras/nodes_hunyuan.py

@@ -2,42 +2,60 @@ import nodes
 import node_helpers
 import torch
 import comfy.model_management
+from typing_extensions import override
+from comfy_api.latest import ComfyExtension, io
 
 
-class CLIPTextEncodeHunyuanDiT:
+class CLIPTextEncodeHunyuanDiT(io.ComfyNode):
     @classmethod
-    def INPUT_TYPES(s):
-        return {"required": {
-            "clip": ("CLIP", ),
-            "bert": ("STRING", {"multiline": True, "dynamicPrompts": True}),
-            "mt5xl": ("STRING", {"multiline": True, "dynamicPrompts": True}),
-            }}
-    RETURN_TYPES = ("CONDITIONING",)
-    FUNCTION = "encode"
+    def define_schema(cls):
+        return io.Schema(
+            node_id="CLIPTextEncodeHunyuanDiT",
+            category="advanced/conditioning",
+            inputs=[
+                io.Clip.Input("clip"),
+                io.String.Input("bert", multiline=True, dynamic_prompts=True),
+                io.String.Input("mt5xl", multiline=True, dynamic_prompts=True),
+            ],
+            outputs=[
+                io.Conditioning.Output(),
+            ],
+        )
 
-    CATEGORY = "advanced/conditioning"
-
-    def encode(self, clip, bert, mt5xl):
+    @classmethod
+    def execute(cls, clip, bert, mt5xl) -> io.NodeOutput:
         tokens = clip.tokenize(bert)
         tokens["mt5xl"] = clip.tokenize(mt5xl)["mt5xl"]
 
-        return (clip.encode_from_tokens_scheduled(tokens), )
+        return io.NodeOutput(clip.encode_from_tokens_scheduled(tokens))
 
-class EmptyHunyuanLatentVideo:
+    encode = execute  # TODO: remove
+
+
+class EmptyHunyuanLatentVideo(io.ComfyNode):
     @classmethod
-    def INPUT_TYPES(s):
-        return {"required": { "width": ("INT", {"default": 848, "min": 16, "max": nodes.MAX_RESOLUTION, "step": 16}),
-                              "height": ("INT", {"default": 480, "min": 16, "max": nodes.MAX_RESOLUTION, "step": 16}),
-                              "length": ("INT", {"default": 25, "min": 1, "max": nodes.MAX_RESOLUTION, "step": 4}),
-                              "batch_size": ("INT", {"default": 1, "min": 1, "max": 4096})}}
-    RETURN_TYPES = ("LATENT",)
-    FUNCTION = "generate"
+    def define_schema(cls):
+        return io.Schema(
+            node_id="EmptyHunyuanLatentVideo",
+            category="latent/video",
+            inputs=[
+                io.Int.Input("width", default=848, min=16, max=nodes.MAX_RESOLUTION, step=16),
+                io.Int.Input("height", default=480, min=16, max=nodes.MAX_RESOLUTION, step=16),
+                io.Int.Input("length", default=25, min=1, max=nodes.MAX_RESOLUTION, step=4),
+                io.Int.Input("batch_size", default=1, min=1, max=4096),
+            ],
+            outputs=[
+                io.Latent.Output(),
+            ],
+        )
 
-    CATEGORY = "latent/video"
-
-    def generate(self, width, height, length, batch_size=1):
+    @classmethod
+    def execute(cls, width, height, length, batch_size=1) -> io.NodeOutput:
         latent = torch.zeros([batch_size, 16, ((length - 1) // 4) + 1, height // 8, width // 8], device=comfy.model_management.intermediate_device())
-        return ({"samples":latent}, )
+        return io.NodeOutput({"samples":latent})
+
+    generate = execute  # TODO: remove
+
 
 PROMPT_TEMPLATE_ENCODE_VIDEO_I2V = (
     "<|start_header_id|>system<|end_header_id|>\n\n<image>\nDescribe the video by detailing the following aspects according to the reference image: "
@@ -50,45 +68,61 @@ PROMPT_TEMPLATE_ENCODE_VIDEO_I2V = (
     "<|start_header_id|>assistant<|end_header_id|>\n\n"
 )
 
-class TextEncodeHunyuanVideo_ImageToVideo:
+class TextEncodeHunyuanVideo_ImageToVideo(io.ComfyNode):
     @classmethod
-    def INPUT_TYPES(s):
-        return {"required": {
-            "clip": ("CLIP", ),
-            "clip_vision_output": ("CLIP_VISION_OUTPUT", ),
-            "prompt": ("STRING", {"multiline": True, "dynamicPrompts": True}),
-            "image_interleave": ("INT", {"default": 2, "min": 1, "max": 512, "tooltip": "How much the image influences things vs the text prompt. Higher number means more influence from the text prompt."}),
-            }}
-    RETURN_TYPES = ("CONDITIONING",)
-    FUNCTION = "encode"
+    def define_schema(cls):
+        return io.Schema(
+            node_id="TextEncodeHunyuanVideo_ImageToVideo",
+            category="advanced/conditioning",
+            inputs=[
+                io.Clip.Input("clip"),
+                io.ClipVisionOutput.Input("clip_vision_output"),
+                io.String.Input("prompt", multiline=True, dynamic_prompts=True),
+                io.Int.Input(
+                    "image_interleave",
+                    default=2,
+                    min=1,
+                    max=512,
+                    tooltip="How much the image influences things vs the text prompt. Higher number means more influence from the text prompt.",
+                ),
+            ],
+            outputs=[
+                io.Conditioning.Output(),
+            ],
+        )
 
-    CATEGORY = "advanced/conditioning"
-
-    def encode(self, clip, clip_vision_output, prompt, image_interleave):
+    @classmethod
+    def execute(cls, clip, clip_vision_output, prompt, image_interleave) -> io.NodeOutput:
         tokens = clip.tokenize(prompt, llama_template=PROMPT_TEMPLATE_ENCODE_VIDEO_I2V, image_embeds=clip_vision_output.mm_projected, image_interleave=image_interleave)
-        return (clip.encode_from_tokens_scheduled(tokens), )
+        return io.NodeOutput(clip.encode_from_tokens_scheduled(tokens))
 
-class HunyuanImageToVideo:
+    encode = execute  # TODO: remove
+
+
+class HunyuanImageToVideo(io.ComfyNode):
     @classmethod
-    def INPUT_TYPES(s):
-        return {"required": {"positive": ("CONDITIONING", ),
-                             "vae": ("VAE", ),
-                             "width": ("INT", {"default": 848, "min": 16, "max": nodes.MAX_RESOLUTION, "step": 16}),
-                             "height": ("INT", {"default": 480, "min": 16, "max": nodes.MAX_RESOLUTION, "step": 16}),
-                             "length": ("INT", {"default": 53, "min": 1, "max": nodes.MAX_RESOLUTION, "step": 4}),
-                             "batch_size": ("INT", {"default": 1, "min": 1, "max": 4096}),
-                             "guidance_type": (["v1 (concat)", "v2 (replace)", "custom"], )
-                },
-                "optional": {"start_image": ("IMAGE", ),
-                }}
+    def define_schema(cls):
+        return io.Schema(
+            node_id="HunyuanImageToVideo",
+            category="conditioning/video_models",
+            inputs=[
+                io.Conditioning.Input("positive"),
+                io.Vae.Input("vae"),
+                io.Int.Input("width", default=848, min=16, max=nodes.MAX_RESOLUTION, step=16),
+                io.Int.Input("height", default=480, min=16, max=nodes.MAX_RESOLUTION, step=16),
+                io.Int.Input("length", default=53, min=1, max=nodes.MAX_RESOLUTION, step=4),
+                io.Int.Input("batch_size", default=1, min=1, max=4096),
+                io.Combo.Input("guidance_type", options=["v1 (concat)", "v2 (replace)", "custom"]),
+                io.Image.Input("start_image", optional=True),
+            ],
+            outputs=[
+                io.Conditioning.Output(display_name="positive"),
+                io.Latent.Output(display_name="latent"),
+            ],
+        )
 
-    RETURN_TYPES = ("CONDITIONING", "LATENT")
-    RETURN_NAMES = ("positive", "latent")
-    FUNCTION = "encode"
-
-    CATEGORY = "conditioning/video_models"
-
-    def encode(self, positive, vae, width, height, length, batch_size, guidance_type, start_image=None):
+    @classmethod
+    def execute(cls, positive, vae, width, height, length, batch_size, guidance_type, start_image=None) -> io.NodeOutput:
         latent = torch.zeros([batch_size, 16, ((length - 1) // 4) + 1, height // 8, width // 8], device=comfy.model_management.intermediate_device())
         out_latent = {}
 
@@ -111,51 +145,76 @@ class HunyuanImageToVideo:
             positive = node_helpers.conditioning_set_values(positive, cond)
 
         out_latent["samples"] = latent
-        return (positive, out_latent)
+        return io.NodeOutput(positive, out_latent)
 
-class EmptyHunyuanImageLatent:
+    encode = execute  # TODO: remove
+
+
+class EmptyHunyuanImageLatent(io.ComfyNode):
     @classmethod
-    def INPUT_TYPES(s):
-        return {"required": { "width": ("INT", {"default": 2048, "min": 64, "max": nodes.MAX_RESOLUTION, "step": 32}),
-                              "height": ("INT", {"default": 2048, "min": 64, "max": nodes.MAX_RESOLUTION, "step": 32}),
-                              "batch_size": ("INT", {"default": 1, "min": 1, "max": 4096})}}
-    RETURN_TYPES = ("LATENT",)
-    FUNCTION = "generate"
+    def define_schema(cls):
+        return io.Schema(
+            node_id="EmptyHunyuanImageLatent",
+            category="latent",
+            inputs=[
+                io.Int.Input("width", default=2048, min=64, max=nodes.MAX_RESOLUTION, step=32),
+                io.Int.Input("height", default=2048, min=64, max=nodes.MAX_RESOLUTION, step=32),
+                io.Int.Input("batch_size", default=1, min=1, max=4096),
+            ],
+            outputs=[
+                io.Latent.Output(),
+            ],
+        )
 
-    CATEGORY = "latent"
-
-    def generate(self, width, height, batch_size=1):
+    @classmethod
+    def execute(cls, width, height, batch_size=1) -> io.NodeOutput:
         latent = torch.zeros([batch_size, 64, height // 32, width // 32], device=comfy.model_management.intermediate_device())
-        return ({"samples":latent}, )
+        return io.NodeOutput({"samples":latent})
 
-class HunyuanRefinerLatent:
+    generate = execute  # TODO: remove
+
+
+class HunyuanRefinerLatent(io.ComfyNode):
     @classmethod
-    def INPUT_TYPES(s):
-        return {"required": {"positive": ("CONDITIONING", ),
-                             "negative": ("CONDITIONING", ),
-                             "latent": ("LATENT", ),
-                             "noise_augmentation": ("FLOAT", {"default": 0.10, "min": 0.0, "max": 1.0, "step": 0.01}),
-                             }}
+    def define_schema(cls):
+        return io.Schema(
+            node_id="HunyuanRefinerLatent",
+            inputs=[
+                io.Conditioning.Input("positive"),
+                io.Conditioning.Input("negative"),
+                io.Latent.Input("latent"),
+                io.Float.Input("noise_augmentation", default=0.10, min=0.0, max=1.0, step=0.01),
 
-    RETURN_TYPES = ("CONDITIONING", "CONDITIONING", "LATENT")
-    RETURN_NAMES = ("positive", "negative", "latent")
+            ],
+            outputs=[
+                io.Conditioning.Output(display_name="positive"),
+                io.Conditioning.Output(display_name="negative"),
+                io.Latent.Output(display_name="latent"),
+            ],
+        )
 
-    FUNCTION = "execute"
-
-    def execute(self, positive, negative, latent, noise_augmentation):
+    @classmethod
+    def execute(cls, positive, negative, latent, noise_augmentation) -> io.NodeOutput:
         latent = latent["samples"]
         positive = node_helpers.conditioning_set_values(positive, {"concat_latent_image": latent, "noise_augmentation": noise_augmentation})
         negative = node_helpers.conditioning_set_values(negative, {"concat_latent_image": latent, "noise_augmentation": noise_augmentation})
         out_latent = {}
         out_latent["samples"] = torch.zeros([latent.shape[0], 32, latent.shape[-3], latent.shape[-2], latent.shape[-1]], device=comfy.model_management.intermediate_device())
-        return (positive, negative, out_latent)
+        return io.NodeOutput(positive, negative, out_latent)
 
 
-NODE_CLASS_MAPPINGS = {
-    "CLIPTextEncodeHunyuanDiT": CLIPTextEncodeHunyuanDiT,
-    "TextEncodeHunyuanVideo_ImageToVideo": TextEncodeHunyuanVideo_ImageToVideo,
-    "EmptyHunyuanLatentVideo": EmptyHunyuanLatentVideo,
-    "HunyuanImageToVideo": HunyuanImageToVideo,
-    "EmptyHunyuanImageLatent": EmptyHunyuanImageLatent,
-    "HunyuanRefinerLatent": HunyuanRefinerLatent,
-}
+class HunyuanExtension(ComfyExtension):
+    @override
+    async def get_node_list(self) -> list[type[io.ComfyNode]]:
+        return [
+            CLIPTextEncodeHunyuanDiT,
+            TextEncodeHunyuanVideo_ImageToVideo,
+            EmptyHunyuanLatentVideo,
+            HunyuanImageToVideo,
+            EmptyHunyuanImageLatent,
+            HunyuanRefinerLatent,
+        ]
+
+
+async def comfy_entrypoint() -> HunyuanExtension:
+    return HunyuanExtension()

comfy_extras/nodes_hypernetwork.py

@@ -2,6 +2,9 @@ import comfy.utils
 import folder_paths
 import torch
 import logging
+from comfy_api.latest import IO, ComfyExtension
+from typing_extensions import override
+
 
 def load_hypernetwork_patch(path, strength):
     sd = comfy.utils.load_torch_file(path, safe_load=True)
@@ -94,27 +97,42 @@ def load_hypernetwork_patch(path, strength):
 
     return hypernetwork_patch(out, strength)
 
-class HypernetworkLoader:
+class HypernetworkLoader(IO.ComfyNode):
     @classmethod
-    def INPUT_TYPES(s):
-        return {"required": { "model": ("MODEL",),
-                              "hypernetwork_name": (folder_paths.get_filename_list("hypernetworks"), ),
-                              "strength": ("FLOAT", {"default": 1.0, "min": -10.0, "max": 10.0, "step": 0.01}),
-                              }}
-    RETURN_TYPES = ("MODEL",)
-    FUNCTION = "load_hypernetwork"
+    def define_schema(cls):
+        return IO.Schema(
+            node_id="HypernetworkLoader",
+            category="loaders",
+            inputs=[
+                IO.Model.Input("model"),
+                IO.Combo.Input("hypernetwork_name", options=folder_paths.get_filename_list("hypernetworks")),
+                IO.Float.Input("strength", default=1.0, min=-10.0, max=10.0, step=0.01),
+            ],
+            outputs=[
+                IO.Model.Output(),
+            ],
+        )
 
-    CATEGORY = "loaders"
-
-    def load_hypernetwork(self, model, hypernetwork_name, strength):
+    @classmethod
+    def execute(cls, model, hypernetwork_name, strength) -> IO.NodeOutput:
         hypernetwork_path = folder_paths.get_full_path_or_raise("hypernetworks", hypernetwork_name)
         model_hypernetwork = model.clone()
         patch = load_hypernetwork_patch(hypernetwork_path, strength)
         if patch is not None:
             model_hypernetwork.set_model_attn1_patch(patch)
             model_hypernetwork.set_model_attn2_patch(patch)
-        return (model_hypernetwork,)
+        return IO.NodeOutput(model_hypernetwork)
 
-NODE_CLASS_MAPPINGS = {
-    "HypernetworkLoader": HypernetworkLoader
-}
+    load_hypernetwork = execute  # TODO: remove
+
+
+class HyperNetworkExtension(ComfyExtension):
+    @override
+    async def get_node_list(self) -> list[type[IO.ComfyNode]]:
+        return [
+            HypernetworkLoader,
+        ]
+
+
+async def comfy_entrypoint() -> HyperNetworkExtension:
+    return HyperNetworkExtension()

comfy_extras/nodes_preview_any.py

@@ -25,7 +25,7 @@ class PreviewAny():
             value = str(source)
         elif source is not None:
             try:
-                value = json.dumps(source)
+                value = json.dumps(source, indent=4)
             except Exception:
                 try:
                     value = str(source)

comfy_extras/nodes_rope.py

@@ -0,0 +1,47 @@
+from comfy_api.latest import ComfyExtension, io
+from typing_extensions import override
+
+
+class ScaleROPE(io.ComfyNode):
+    @classmethod
+    def define_schema(cls):
+        return io.Schema(
+            node_id="ScaleROPE",
+            category="advanced/model_patches",
+            description="Scale and shift the ROPE of the model.",
+            is_experimental=True,
+            inputs=[
+                io.Model.Input("model"),
+                io.Float.Input("scale_x", default=1.0, min=0.0, max=100.0, step=0.1),
+                io.Float.Input("shift_x", default=0.0, min=-256.0, max=256.0, step=0.1),
+
+                io.Float.Input("scale_y", default=1.0, min=0.0, max=100.0, step=0.1),
+                io.Float.Input("shift_y", default=0.0, min=-256.0, max=256.0, step=0.1),
+
+                io.Float.Input("scale_t", default=1.0, min=0.0, max=100.0, step=0.1),
+                io.Float.Input("shift_t", default=0.0, min=-256.0, max=256.0, step=0.1),
+
+
+            ],
+            outputs=[
+                io.Model.Output(),
+            ],
+        )
+
+    @classmethod
+    def execute(cls, model, scale_x, shift_x, scale_y, shift_y, scale_t, shift_t) -> io.NodeOutput:
+        m = model.clone()
+        m.set_model_rope_options(scale_x, shift_x, scale_y, shift_y, scale_t, shift_t)
+        return io.NodeOutput(m)
+
+
+class RopeExtension(ComfyExtension):
+    @override
+    async def get_node_list(self) -> list[type[io.ComfyNode]]:
+        return [
+            ScaleROPE
+        ]
+
+
+async def comfy_entrypoint() -> RopeExtension:
+    return RopeExtension()

comfyui_version.py

@@ -1,3 +1,3 @@
 # This file is automatically generated by the build process when version is
 # updated in pyproject.toml.
-__version__ = "0.3.64"
+__version__ = "0.3.68"

cuda_malloc.py

@@ -1,6 +1,6 @@
 import os
 import importlib.util
-from comfy.cli_args import args
+from comfy.cli_args import args, PerformanceFeature
 import subprocess
 
 #Can't use pytorch to get the GPU names because the cuda malloc has to be set before the first import.
@@ -75,8 +75,9 @@ if not args.cuda_malloc:
                 spec.loader.exec_module(module)
                 version = module.__version__
 
-        if int(version[0]) >= 2 and "+cu" in version: #enable by default for torch version 2.0 and up only on cuda torch
-            args.cuda_malloc = cuda_malloc_supported()
+        if int(version[0]) >= 2 and "+cu" in version:  # enable by default for torch version 2.0 and up only on cuda torch
+            if PerformanceFeature.AutoTune not in args.fast:  # Autotune has issues with cuda malloc
+                args.cuda_malloc = cuda_malloc_supported()
     except:
         pass
 

execution.py

@@ -18,9 +18,10 @@ from comfy_execution.caching import (
     BasicCache,
     CacheKeySetID,
     CacheKeySetInputSignature,
-    DependencyAwareCache,
+    NullCache,
     HierarchicalCache,
     LRUCache,
+    RAMPressureCache,
 )
 from comfy_execution.graph import (
     DynamicPrompt,
@@ -88,54 +89,62 @@ class IsChangedCache:
         return self.is_changed[node_id]
 
 
+class CacheEntry(NamedTuple):
+    ui: dict
+    outputs: list
+
+
 class CacheType(Enum):
     CLASSIC = 0
     LRU = 1
-    DEPENDENCY_AWARE = 2
+    NONE = 2
+    RAM_PRESSURE = 3
 
 
 class CacheSet:
-    def __init__(self, cache_type=None, cache_size=None):
-        if cache_type == CacheType.DEPENDENCY_AWARE:
-            self.init_dependency_aware_cache()
+    def __init__(self, cache_type=None, cache_args={}):
+        if cache_type == CacheType.NONE:
+            self.init_null_cache()
             logging.info("Disabling intermediate node cache.")
+        elif cache_type == CacheType.RAM_PRESSURE:
+            cache_ram = cache_args.get("ram", 16.0)
+            self.init_ram_cache(cache_ram)
+            logging.info("Using RAM pressure cache.")
         elif cache_type == CacheType.LRU:
-            if cache_size is None:
-                cache_size = 0
+            cache_size = cache_args.get("lru", 0)
             self.init_lru_cache(cache_size)
             logging.info("Using LRU cache")
         else:
             self.init_classic_cache()
 
-        self.all = [self.outputs, self.ui, self.objects]
+        self.all = [self.outputs, self.objects]
 
     # Performs like the old cache -- dump data ASAP
     def init_classic_cache(self):
         self.outputs = HierarchicalCache(CacheKeySetInputSignature)
-        self.ui = HierarchicalCache(CacheKeySetInputSignature)
         self.objects = HierarchicalCache(CacheKeySetID)
 
     def init_lru_cache(self, cache_size):
         self.outputs = LRUCache(CacheKeySetInputSignature, max_size=cache_size)
-        self.ui = LRUCache(CacheKeySetInputSignature, max_size=cache_size)
         self.objects = HierarchicalCache(CacheKeySetID)
 
-    # only hold cached items while the decendents have not executed
-    def init_dependency_aware_cache(self):
-        self.outputs = DependencyAwareCache(CacheKeySetInputSignature)
-        self.ui = DependencyAwareCache(CacheKeySetInputSignature)
-        self.objects = DependencyAwareCache(CacheKeySetID)
+    def init_ram_cache(self, min_headroom):
+        self.outputs = RAMPressureCache(CacheKeySetInputSignature)
+        self.objects = HierarchicalCache(CacheKeySetID)
+
+    def init_null_cache(self):
+        self.outputs = NullCache()
+        self.objects = NullCache()
 
     def recursive_debug_dump(self):
         result = {
             "outputs": self.outputs.recursive_debug_dump(),
-            "ui": self.ui.recursive_debug_dump(),
         }
         return result
 
 SENSITIVE_EXTRA_DATA_KEYS = ("auth_token_comfy_org", "api_key_comfy_org")
 
-def get_input_data(inputs, class_def, unique_id, outputs=None, dynprompt=None, extra_data={}):
+def get_input_data(inputs, class_def, unique_id, execution_list=None, dynprompt=None, extra_data={}):
     is_v3 = issubclass(class_def, _ComfyNodeInternal)
     if is_v3:
         valid_inputs, schema = class_def.INPUT_TYPES(include_hidden=False, return_schema=True)
@@ -153,17 +162,17 @@ def get_input_data(inputs, class_def, unique_id, outputs=None, dynprompt=None, e
         if is_link(input_data) and (not input_info or not input_info.get("rawLink", False)):
             input_unique_id = input_data[0]
             output_index = input_data[1]
-            if outputs is None:
+            if execution_list is None:
                 mark_missing()
                 continue # This might be a lazily-evaluated input
-            cached_output = outputs.get(input_unique_id)
-            if cached_output is None:
+            cached = execution_list.get_cache(input_unique_id, unique_id)
+            if cached is None or cached.outputs is None:
                 mark_missing()
                 continue
-            if output_index >= len(cached_output):
+            if output_index >= len(cached.outputs):
                 mark_missing()
                 continue
-            obj = cached_output[output_index]
+            obj = cached.outputs[output_index]
             input_data_all[x] = obj
         elif input_category is not None:
             input_data_all[x] = [input_data]
@@ -392,7 +401,7 @@ def format_value(x):
     else:
         return str(x)
 
-async def execute(server, dynprompt, caches, current_item, extra_data, executed, prompt_id, execution_list, pending_subgraph_results, pending_async_nodes):
+async def execute(server, dynprompt, caches, current_item, extra_data, executed, prompt_id, execution_list, pending_subgraph_results, pending_async_nodes, ui_outputs):
     unique_id = current_item
     real_node_id = dynprompt.get_real_node_id(unique_id)
     display_node_id = dynprompt.get_display_node_id(unique_id)
@@ -400,11 +409,15 @@ async def execute(server, dynprompt, caches, current_item, extra_data, executed,
     inputs = dynprompt.get_node(unique_id)['inputs']
     class_type = dynprompt.get_node(unique_id)['class_type']
     class_def = nodes.NODE_CLASS_MAPPINGS[class_type]
-    if caches.outputs.get(unique_id) is not None:
+    cached = caches.outputs.get(unique_id)
+    if cached is not None:
         if server.client_id is not None:
-            cached_output = caches.ui.get(unique_id) or {}
-            server.send_sync("executed", { "node": unique_id, "display_node": display_node_id, "output": cached_output.get("output",None), "prompt_id": prompt_id }, server.client_id)
+            cached_ui = cached.ui or {}
+            server.send_sync("executed", { "node": unique_id, "display_node": display_node_id, "output": cached_ui.get("output",None), "prompt_id": prompt_id }, server.client_id)
+            if cached.ui is not None:
+                ui_outputs[unique_id] = cached.ui
         get_progress_state().finish_progress(unique_id)
+        execution_list.cache_update(unique_id, cached)
         return (ExecutionResult.SUCCESS, None, None)
 
     input_data_all = None
@@ -434,8 +447,8 @@ async def execute(server, dynprompt, caches, current_item, extra_data, executed,
                     for r in result:
                         if is_link(r):
                             source_node, source_output = r[0], r[1]
-                            node_output = caches.outputs.get(source_node)[source_output]
-                            for o in node_output:
+                            node_cached = execution_list.get_cache(source_node, unique_id)
+                            for o in node_cached.outputs[source_output]:
                                 resolved_output.append(o)
 
                         else:
@@ -443,10 +456,11 @@ async def execute(server, dynprompt, caches, current_item, extra_data, executed,
                     resolved_outputs.append(tuple(resolved_output))
             output_data = merge_result_data(resolved_outputs, class_def)
             output_ui = []
+            del pending_subgraph_results[unique_id]
             has_subgraph = False
         else:
             get_progress_state().start_progress(unique_id)
-            input_data_all, missing_keys, hidden_inputs = get_input_data(inputs, class_def, unique_id, caches.outputs, dynprompt, extra_data)
+            input_data_all, missing_keys, hidden_inputs = get_input_data(inputs, class_def, unique_id, execution_list, dynprompt, extra_data)
             if server.client_id is not None:
                 server.last_node_id = display_node_id
                 server.send_sync("executing", { "node": unique_id, "display_node": display_node_id, "prompt_id": prompt_id }, server.client_id)
@@ -504,7 +518,7 @@ async def execute(server, dynprompt, caches, current_item, extra_data, executed,
                 asyncio.create_task(await_completion())
                 return (ExecutionResult.PENDING, None, None)
         if len(output_ui) > 0:
-            caches.ui.set(unique_id, {
+            ui_outputs[unique_id] = {
                 "meta": {
                     "node_id": unique_id,
                     "display_node": display_node_id,
@@ -512,7 +526,7 @@ async def execute(server, dynprompt, caches, current_item, extra_data, executed,
                     "real_node_id": real_node_id,
                 },
                 "output": output_ui
-            })
+            }
             if server.client_id is not None:
                 server.send_sync("executed", { "node": unique_id, "display_node": display_node_id, "output": output_ui, "prompt_id": prompt_id }, server.client_id)
         if has_subgraph:
@@ -525,10 +539,6 @@ async def execute(server, dynprompt, caches, current_item, extra_data, executed,
                 if new_graph is None:
                     cached_outputs.append((False, node_outputs))
                 else:
-                    # Check for conflicts
-                    for node_id in new_graph.keys():
-                        if dynprompt.has_node(node_id):
-                            raise DuplicateNodeError(f"Attempt to add duplicate node {node_id}. Ensure node ids are unique and deterministic or use graph_utils.GraphBuilder.")
                     for node_id, node_info in new_graph.items():
                         new_node_ids.append(node_id)
                         display_id = node_info.get("override_display_id", unique_id)
@@ -549,11 +559,16 @@ async def execute(server, dynprompt, caches, current_item, extra_data, executed,
                 subcache.clean_unused()
             for node_id in new_output_ids:
                 execution_list.add_node(node_id)
+                execution_list.cache_link(node_id, unique_id)
             for link in new_output_links:
                 execution_list.add_strong_link(link[0], link[1], unique_id)
             pending_subgraph_results[unique_id] = cached_outputs
             return (ExecutionResult.PENDING, None, None)
-        caches.outputs.set(unique_id, output_data)
+
+        cache_entry = CacheEntry(ui=ui_outputs.get(unique_id), outputs=output_data)
+        execution_list.cache_update(unique_id, cache_entry)
+        caches.outputs.set(unique_id, cache_entry)
+
     except comfy.model_management.InterruptProcessingException as iex:
         logging.info("Processing interrupted")
 
@@ -597,14 +612,14 @@ async def execute(server, dynprompt, caches, current_item, extra_data, executed,
     return (ExecutionResult.SUCCESS, None, None)
 
 class PromptExecutor:
-    def __init__(self, server, cache_type=False, cache_size=None):
-        self.cache_size = cache_size
+    def __init__(self, server, cache_type=False, cache_args=None):
+        self.cache_args = cache_args
         self.cache_type = cache_type
         self.server = server
         self.reset()
 
     def reset(self):
-        self.caches = CacheSet(cache_type=self.cache_type, cache_size=self.cache_size)
+        self.caches = CacheSet(cache_type=self.cache_type, cache_args=self.cache_args)
         self.status_messages = []
         self.success = True
 
@@ -679,6 +694,7 @@ class PromptExecutor:
                           broadcast=False)
             pending_subgraph_results = {}
             pending_async_nodes = {} # TODO - Unify this with pending_subgraph_results
+            ui_node_outputs = {}
             executed = set()
             execution_list = ExecutionList(dynamic_prompt, self.caches.outputs)
             current_outputs = self.caches.outputs.all_node_ids()
@@ -692,7 +708,7 @@ class PromptExecutor:
                     break
 
                 assert node_id is not None, "Node ID should not be None at this point"
-                result, error, ex = await execute(self.server, dynamic_prompt, self.caches, node_id, extra_data, executed, prompt_id, execution_list, pending_subgraph_results, pending_async_nodes)
+                result, error, ex = await execute(self.server, dynamic_prompt, self.caches, node_id, extra_data, executed, prompt_id, execution_list, pending_subgraph_results, pending_async_nodes, ui_node_outputs)
                 self.success = result != ExecutionResult.FAILURE
                 if result == ExecutionResult.FAILURE:
                     self.handle_execution_error(prompt_id, dynamic_prompt.original_prompt, current_outputs, executed, error, ex)
@@ -701,18 +717,16 @@ class PromptExecutor:
                     execution_list.unstage_node_execution()
                 else: # result == ExecutionResult.SUCCESS:
                     execution_list.complete_node_execution()
+                self.caches.outputs.poll(ram_headroom=self.cache_args["ram"])
             else:
                 # Only execute when the while-loop ends without break
                 self.add_message("execution_success", { "prompt_id": prompt_id }, broadcast=False)
 
             ui_outputs = {}
             meta_outputs = {}
-            all_node_ids = self.caches.ui.all_node_ids()
-            for node_id in all_node_ids:
-                ui_info = self.caches.ui.get(node_id)
-                if ui_info is not None:
-                    ui_outputs[node_id] = ui_info["output"]
-                    meta_outputs[node_id] = ui_info["meta"]
+            for node_id, ui_info in ui_node_outputs.items():
+                ui_outputs[node_id] = ui_info["output"]
+                meta_outputs[node_id] = ui_info["meta"]
             self.history_result = {
                 "outputs": ui_outputs,
                 "meta": meta_outputs,
@@ -1110,7 +1124,7 @@ class PromptQueue:
         messages: List[str]
 
     def task_done(self, item_id, history_result,
-                  status: Optional['PromptQueue.ExecutionStatus']):
+                  status: Optional['PromptQueue.ExecutionStatus'], process_item=None):
         with self.mutex:
             prompt = self.currently_running.pop(item_id)
             if len(self.history) > MAXIMUM_HISTORY_SIZE:
@@ -1120,10 +1134,8 @@ class PromptQueue:
             if status is not None:
                 status_dict = copy.deepcopy(status._asdict())
 
-            # Remove sensitive data from extra_data before storing in history
-            for sensitive_val in SENSITIVE_EXTRA_DATA_KEYS:
-                if sensitive_val in prompt[3]:
-                    prompt[3].pop(sensitive_val)
+            if process_item is not None:
+                prompt = process_item(prompt)
 
             self.history[prompt[1]] = {
                 "prompt": prompt,

extra_model_paths.yaml.example

@@ -1,25 +1,5 @@
 #Rename this to extra_model_paths.yaml and ComfyUI will load it
 
-
-#config for a1111 ui
-#all you have to do is change the base_path to where yours is installed
-a111:
-    base_path: path/to/stable-diffusion-webui/
-
-    checkpoints: models/Stable-diffusion
-    configs: models/Stable-diffusion
-    vae: models/VAE
-    loras: |
-         models/Lora
-         models/LyCORIS
-    upscale_models: |
-                  models/ESRGAN
-                  models/RealESRGAN
-                  models/SwinIR
-    embeddings: embeddings
-    hypernetworks: models/hypernetworks
-    controlnet: models/ControlNet
-
 #config for comfyui
 #your base path should be either an existing comfy install or a central folder where you store all of your models, loras, etc.
 
@@ -28,7 +8,9 @@ a111:
 #     # You can use is_default to mark that these folders should be listed first, and used as the default dirs for eg downloads
 #     #is_default: true
 #     checkpoints: models/checkpoints/
-#     clip: models/clip/
+#     text_encoders: |
+#          models/text_encoders/
+#          models/clip/  # legacy location still supported
 #     clip_vision: models/clip_vision/
 #     configs: models/configs/
 #     controlnet: models/controlnet/
@@ -39,6 +21,32 @@ a111:
 #     loras: models/loras/
 #     upscale_models: models/upscale_models/
 #     vae: models/vae/
+#     audio_encoders: models/audio_encoders/
+#     model_patches: models/model_patches/
+
+
+#config for a1111 ui
+#all you have to do is uncomment this (remove the #) and change the base_path to where yours is installed
+
+#a111:
+#     base_path: path/to/stable-diffusion-webui/
+#     checkpoints: models/Stable-diffusion
+#     configs: models/Stable-diffusion
+#     vae: models/VAE
+#     loras: |
+#          models/Lora
+#          models/LyCORIS
+#     upscale_models: |
+#                   models/ESRGAN
+#                   models/RealESRGAN
+#                   models/SwinIR
+#     embeddings: embeddings
+#     hypernetworks: models/hypernetworks
+#     controlnet: models/ControlNet
+
+
+# For a full list of supported keys (style_models, vae_approx, hypernetworks, photomaker,
+# model_patches, audio_encoders, classifiers, etc.) see folder_paths.py.
 
 #other_ui:
 #    base_path: path/to/ui

main.py

@@ -172,10 +172,12 @@ def prompt_worker(q, server_instance):
     cache_type = execution.CacheType.CLASSIC
     if args.cache_lru > 0:
         cache_type = execution.CacheType.LRU
+    elif args.cache_ram > 0:
+        cache_type = execution.CacheType.RAM_PRESSURE
     elif args.cache_none:
-        cache_type = execution.CacheType.DEPENDENCY_AWARE
+        cache_type = execution.CacheType.NONE
 
-    e = execution.PromptExecutor(server_instance, cache_type=cache_type, cache_size=args.cache_lru)
+    e = execution.PromptExecutor(server_instance, cache_type=cache_type, cache_args={ "lru" : args.cache_lru, "ram" : args.cache_ram } )
     last_gc_collect = 0
     need_gc = False
     gc_collect_interval = 10.0
@@ -192,14 +194,21 @@ def prompt_worker(q, server_instance):
             prompt_id = item[1]
             server_instance.last_prompt_id = prompt_id
 
-            e.execute(item[2], prompt_id, item[3], item[4])
+            sensitive = item[5]
+            extra_data = item[3].copy()
+            for k in sensitive:
+                extra_data[k] = sensitive[k]
+
+            e.execute(item[2], prompt_id, extra_data, item[4])
             need_gc = True
+
+            remove_sensitive = lambda prompt: prompt[:5] + prompt[6:]
             q.task_done(item_id,
                         e.history_result,
                         status=execution.PromptQueue.ExecutionStatus(
                             status_str='success' if e.success else 'error',
                             completed=e.success,
-                            messages=e.status_messages))
+                            messages=e.status_messages), process_item=remove_sensitive)
             if server_instance.client_id is not None:
                 server_instance.send_sync("executing", {"node": None, "prompt_id": prompt_id}, server_instance.client_id)
 

nodes.py

@@ -2329,6 +2329,7 @@ async def init_builtin_extra_nodes():
         "nodes_model_patch.py",
         "nodes_easycache.py",
         "nodes_audio_encoder.py",
+        "nodes_rope.py",
     ]
 
     import_failed = []
@@ -2349,6 +2350,7 @@ async def init_builtin_api_nodes():
         "nodes_kling.py",
         "nodes_bfl.py",
         "nodes_bytedance.py",
+        "nodes_ltxv.py",
         "nodes_luma.py",
         "nodes_recraft.py",
         "nodes_pixverse.py",

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "ComfyUI"
-version = "0.3.64"
+version = "0.3.68"
 readme = "README.md"
 license = { file = "LICENSE" }
 requires-python = ">=3.9"
@@ -50,6 +50,8 @@ messages_control.disable = [
   "too-many-branches",
   "too-many-locals",
   "too-many-arguments",
+  "too-many-return-statements",
+  "too-many-nested-blocks",
   "duplicate-code",
   "abstract-method",
   "superfluous-parens",

requirements.txt

@@ -1,6 +1,6 @@
-comfyui-frontend-package==1.27.10
-comfyui-workflow-templates==0.1.94
-comfyui-embedded-docs==0.2.6
+comfyui-frontend-package==1.28.8
+comfyui-workflow-templates==0.2.11
+comfyui-embedded-docs==0.3.1
 torch
 torchsde
 torchvision

server.py

@@ -35,6 +35,7 @@ from comfy_api.internal import _ComfyNodeInternal
 from app.user_manager import UserManager
 from app.model_manager import ModelFileManager
 from app.custom_node_manager import CustomNodeManager
+from app.subgraph_manager import SubgraphManager
 from typing import Optional, Union
 from api_server.routes.internal.internal_routes import InternalRoutes
 from protocol import BinaryEventTypes
@@ -48,6 +49,28 @@ async def send_socket_catch_exception(function, message):
     except (aiohttp.ClientError, aiohttp.ClientPayloadError, ConnectionResetError, BrokenPipeError, ConnectionError) as err:
         logging.warning("send error: {}".format(err))
 
+# Track deprecated paths that have been warned about to only warn once per file
+_deprecated_paths_warned = set()
+
+@web.middleware
+async def deprecation_warning(request: web.Request, handler):
+    """Middleware to warn about deprecated frontend API paths"""
+    path = request.path
+
+    if path.startswith("/scripts/ui") or path.startswith("/extensions/core/"):
+        # Only warn once per unique file path
+        if path not in _deprecated_paths_warned:
+            _deprecated_paths_warned.add(path)
+            logging.warning(
+                f"[DEPRECATION WARNING] Detected import of deprecated legacy API: {path}. "
+                f"This is likely caused by a custom node extension using outdated APIs. "
+                f"Please update your extensions or contact the extension author for an updated version."
+            )
+
+    response: web.Response = await handler(request)
+    return response
+
+
 @web.middleware
 async def compress_body(request: web.Request, handler):
     accept_encoding = request.headers.get("Accept-Encoding", "")
@@ -151,6 +174,7 @@ class PromptServer():
         self.user_manager = UserManager()
         self.model_file_manager = ModelFileManager()
         self.custom_node_manager = CustomNodeManager()
+        self.subgraph_manager = SubgraphManager()
         self.internal_routes = InternalRoutes(self)
         self.supports = ["custom_nodes_from_web"]
         self.prompt_queue = execution.PromptQueue(self)
@@ -159,7 +183,7 @@ class PromptServer():
         self.client_session:Optional[aiohttp.ClientSession] = None
         self.number = 0
 
-        middlewares = [cache_control]
+        middlewares = [cache_control, deprecation_warning]
         if args.enable_compress_response_body:
             middlewares.append(compress_body)
 
@@ -667,8 +691,9 @@ class PromptServer():
         async def get_queue(request):
             queue_info = {}
             current_queue = self.prompt_queue.get_current_queue_volatile()
-            queue_info['queue_running'] = current_queue[0]
-            queue_info['queue_pending'] = current_queue[1]
+            remove_sensitive = lambda queue: [x[:5] for x in queue]
+            queue_info['queue_running'] = remove_sensitive(current_queue[0])
+            queue_info['queue_pending'] = remove_sensitive(current_queue[1])
             return web.json_response(queue_info)
 
         @routes.post("/prompt")
@@ -704,7 +729,11 @@ class PromptServer():
                     extra_data["client_id"] = json_data["client_id"]
                 if valid[0]:
                     outputs_to_execute = valid[2]
-                    self.prompt_queue.put((number, prompt_id, prompt, extra_data, outputs_to_execute))
+                    sensitive = {}
+                    for sensitive_val in execution.SENSITIVE_EXTRA_DATA_KEYS:
+                        if sensitive_val in extra_data:
+                            sensitive[sensitive_val] = extra_data.pop(sensitive_val)
+                    self.prompt_queue.put((number, prompt_id, prompt, extra_data, outputs_to_execute, sensitive))
                     response = {"prompt_id": prompt_id, "number": number, "node_errors": valid[3]}
                     return web.json_response(response)
                 else:
@@ -797,6 +826,7 @@ class PromptServer():
         self.user_manager.add_routes(self.routes)
         self.model_file_manager.add_routes(self.routes)
         self.custom_node_manager.add_routes(self.routes, self.app, nodes.LOADED_MODULE_DIRS.items())
+        self.subgraph_manager.add_routes(self.routes, nodes.LOADED_MODULE_DIRS.items())
         self.app.add_subapp('/internal', self.internal_routes.get_app())
 
         # Prefix every route with /api for easier matching for delegation.

tests-unit/comfy_quant/test_mixed_precision.py

@@ -0,0 +1,232 @@
+import unittest
+import torch
+import sys
+import os
+
+# Add comfy to path
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", ".."))
+
+def has_gpu():
+    return torch.cuda.is_available()
+
+from comfy.cli_args import args
+if not has_gpu():
+    args.cpu = True
+
+from comfy import ops
+from comfy.quant_ops import QuantizedTensor
+
+
+class SimpleModel(torch.nn.Module):
+    def __init__(self, operations=ops.disable_weight_init):
+        super().__init__()
+        self.layer1 = operations.Linear(10, 20, device="cpu", dtype=torch.bfloat16)
+        self.layer2 = operations.Linear(20, 30, device="cpu", dtype=torch.bfloat16)
+        self.layer3 = operations.Linear(30, 40, device="cpu", dtype=torch.bfloat16)
+
+    def forward(self, x):
+        x = self.layer1(x)
+        x = torch.nn.functional.relu(x)
+        x = self.layer2(x)
+        x = torch.nn.functional.relu(x)
+        x = self.layer3(x)
+        return x
+
+
+class TestMixedPrecisionOps(unittest.TestCase):
+
+    def test_all_layers_standard(self):
+        """Test that model with no quantization works normally"""
+        # Configure no quantization
+        ops.MixedPrecisionOps._layer_quant_config = {}
+
+        # Create model
+        model = SimpleModel(operations=ops.MixedPrecisionOps)
+
+        # Initialize weights manually
+        model.layer1.weight = torch.nn.Parameter(torch.randn(20, 10, dtype=torch.bfloat16))
+        model.layer1.bias = torch.nn.Parameter(torch.randn(20, dtype=torch.bfloat16))
+        model.layer2.weight = torch.nn.Parameter(torch.randn(30, 20, dtype=torch.bfloat16))
+        model.layer2.bias = torch.nn.Parameter(torch.randn(30, dtype=torch.bfloat16))
+        model.layer3.weight = torch.nn.Parameter(torch.randn(40, 30, dtype=torch.bfloat16))
+        model.layer3.bias = torch.nn.Parameter(torch.randn(40, dtype=torch.bfloat16))
+
+        # Initialize weight_function and bias_function
+        for layer in [model.layer1, model.layer2, model.layer3]:
+            layer.weight_function = []
+            layer.bias_function = []
+
+        # Forward pass
+        input_tensor = torch.randn(5, 10, dtype=torch.bfloat16)
+        output = model(input_tensor)
+
+        self.assertEqual(output.shape, (5, 40))
+        self.assertEqual(output.dtype, torch.bfloat16)
+
+    def test_mixed_precision_load(self):
+        """Test loading a mixed precision model from state dict"""
+        # Configure mixed precision: layer1 is FP8, layer2 and layer3 are standard
+        layer_quant_config = {
+            "layer1": {
+                "format": "float8_e4m3fn",
+                "params": {}
+            },
+            "layer3": {
+                "format": "float8_e4m3fn",
+                "params": {}
+            }
+        }
+        ops.MixedPrecisionOps._layer_quant_config = layer_quant_config
+
+        # Create state dict with mixed precision
+        fp8_weight1 = torch.randn(20, 10, dtype=torch.float32).to(torch.float8_e4m3fn)
+        fp8_weight3 = torch.randn(40, 30, dtype=torch.float32).to(torch.float8_e4m3fn)
+
+        state_dict = {
+            # Layer 1: FP8 E4M3FN
+            "layer1.weight": fp8_weight1,
+            "layer1.bias": torch.randn(20, dtype=torch.bfloat16),
+            "layer1.weight_scale": torch.tensor(2.0, dtype=torch.float32),
+
+            # Layer 2: Standard BF16
+            "layer2.weight": torch.randn(30, 20, dtype=torch.bfloat16),
+            "layer2.bias": torch.randn(30, dtype=torch.bfloat16),
+
+            # Layer 3: FP8 E4M3FN
+            "layer3.weight": fp8_weight3,
+            "layer3.bias": torch.randn(40, dtype=torch.bfloat16),
+            "layer3.weight_scale": torch.tensor(1.5, dtype=torch.float32),
+        }
+
+        # Create model and load state dict (strict=False because custom loading pops keys)
+        model = SimpleModel(operations=ops.MixedPrecisionOps)
+        model.load_state_dict(state_dict, strict=False)
+
+        # Verify weights are wrapped in QuantizedTensor
+        self.assertIsInstance(model.layer1.weight, QuantizedTensor)
+        self.assertEqual(model.layer1.weight._layout_type, "TensorCoreFP8Layout")
+
+        # Layer 2 should NOT be quantized
+        self.assertNotIsInstance(model.layer2.weight, QuantizedTensor)
+
+        # Layer 3 should be quantized
+        self.assertIsInstance(model.layer3.weight, QuantizedTensor)
+        self.assertEqual(model.layer3.weight._layout_type, "TensorCoreFP8Layout")
+
+        # Verify scales were loaded
+        self.assertEqual(model.layer1.weight._layout_params['scale'].item(), 2.0)
+        self.assertEqual(model.layer3.weight._layout_params['scale'].item(), 1.5)
+
+        # Forward pass
+        input_tensor = torch.randn(5, 10, dtype=torch.bfloat16)
+        output = model(input_tensor)
+
+        self.assertEqual(output.shape, (5, 40))
+
+    def test_state_dict_quantized_preserved(self):
+        """Test that quantized weights are preserved in state_dict()"""
+        # Configure mixed precision
+        layer_quant_config = {
+            "layer1": {
+                "format": "float8_e4m3fn",
+                "params": {}
+            }
+        }
+        ops.MixedPrecisionOps._layer_quant_config = layer_quant_config
+
+        # Create and load model
+        fp8_weight = torch.randn(20, 10, dtype=torch.float32).to(torch.float8_e4m3fn)
+        state_dict1 = {
+            "layer1.weight": fp8_weight,
+            "layer1.bias": torch.randn(20, dtype=torch.bfloat16),
+            "layer1.weight_scale": torch.tensor(3.0, dtype=torch.float32),
+            "layer2.weight": torch.randn(30, 20, dtype=torch.bfloat16),
+            "layer2.bias": torch.randn(30, dtype=torch.bfloat16),
+            "layer3.weight": torch.randn(40, 30, dtype=torch.bfloat16),
+            "layer3.bias": torch.randn(40, dtype=torch.bfloat16),
+        }
+
+        model = SimpleModel(operations=ops.MixedPrecisionOps)
+        model.load_state_dict(state_dict1, strict=False)
+
+        # Save state dict
+        state_dict2 = model.state_dict()
+
+        # Verify layer1.weight is a QuantizedTensor with scale preserved
+        self.assertIsInstance(state_dict2["layer1.weight"], QuantizedTensor)
+        self.assertEqual(state_dict2["layer1.weight"]._layout_params['scale'].item(), 3.0)
+        self.assertEqual(state_dict2["layer1.weight"]._layout_type, "TensorCoreFP8Layout")
+
+        # Verify non-quantized layers are standard tensors
+        self.assertNotIsInstance(state_dict2["layer2.weight"], QuantizedTensor)
+        self.assertNotIsInstance(state_dict2["layer3.weight"], QuantizedTensor)
+
+    def test_weight_function_compatibility(self):
+        """Test that weight_function (LoRA) works with quantized layers"""
+        # Configure FP8 quantization
+        layer_quant_config = {
+            "layer1": {
+                "format": "float8_e4m3fn",
+                "params": {}
+            }
+        }
+        ops.MixedPrecisionOps._layer_quant_config = layer_quant_config
+
+        # Create and load model
+        fp8_weight = torch.randn(20, 10, dtype=torch.float32).to(torch.float8_e4m3fn)
+        state_dict = {
+            "layer1.weight": fp8_weight,
+            "layer1.bias": torch.randn(20, dtype=torch.bfloat16),
+            "layer1.weight_scale": torch.tensor(2.0, dtype=torch.float32),
+            "layer2.weight": torch.randn(30, 20, dtype=torch.bfloat16),
+            "layer2.bias": torch.randn(30, dtype=torch.bfloat16),
+            "layer3.weight": torch.randn(40, 30, dtype=torch.bfloat16),
+            "layer3.bias": torch.randn(40, dtype=torch.bfloat16),
+        }
+
+        model = SimpleModel(operations=ops.MixedPrecisionOps)
+        model.load_state_dict(state_dict, strict=False)
+
+        # Add a weight function (simulating LoRA)
+        # This should trigger dequantization during forward pass
+        def apply_lora(weight):
+            lora_delta = torch.randn_like(weight) * 0.01
+            return weight + lora_delta
+
+        model.layer1.weight_function.append(apply_lora)
+
+        # Forward pass should work with LoRA (triggers weight_function path)
+        input_tensor = torch.randn(5, 10, dtype=torch.bfloat16)
+        output = model(input_tensor)
+
+        self.assertEqual(output.shape, (5, 40))
+
+    def test_error_handling_unknown_format(self):
+        """Test that unknown formats raise error"""
+        # Configure with unknown format
+        layer_quant_config = {
+            "layer1": {
+                "format": "unknown_format_xyz",
+                "params": {}
+            }
+        }
+        ops.MixedPrecisionOps._layer_quant_config = layer_quant_config
+
+        # Create state dict
+        state_dict = {
+            "layer1.weight": torch.randn(20, 10, dtype=torch.bfloat16),
+            "layer1.bias": torch.randn(20, dtype=torch.bfloat16),
+            "layer2.weight": torch.randn(30, 20, dtype=torch.bfloat16),
+            "layer2.bias": torch.randn(30, dtype=torch.bfloat16),
+            "layer3.weight": torch.randn(40, 30, dtype=torch.bfloat16),
+            "layer3.bias": torch.randn(40, dtype=torch.bfloat16),
+        }
+
+        # Load should raise KeyError for unknown format in QUANT_FORMAT_MIXINS
+        model = SimpleModel(operations=ops.MixedPrecisionOps)
+        with self.assertRaises(KeyError):
+            model.load_state_dict(state_dict, strict=False)
+
+if __name__ == "__main__":
+    unittest.main()
+

tests-unit/comfy_quant/test_quant_registry.py

@@ -0,0 +1,190 @@
+import unittest
+import torch
+import sys
+import os
+
+# Add comfy to path
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", ".."))
+
+def has_gpu():
+    return torch.cuda.is_available()
+
+from comfy.cli_args import args
+if not has_gpu():
+    args.cpu = True
+
+from comfy.quant_ops import QuantizedTensor, TensorCoreFP8Layout
+
+
+class TestQuantizedTensor(unittest.TestCase):
+    """Test the QuantizedTensor subclass with FP8 layout"""
+
+    def test_creation(self):
+        """Test creating a QuantizedTensor with TensorCoreFP8Layout"""
+        fp8_data = torch.randn(256, 128, dtype=torch.float32).to(torch.float8_e4m3fn)
+        scale = torch.tensor(2.0)
+        layout_params = {'scale': scale, 'orig_dtype': torch.bfloat16}
+
+        qt = QuantizedTensor(fp8_data, "TensorCoreFP8Layout", layout_params)
+
+        self.assertIsInstance(qt, QuantizedTensor)
+        self.assertEqual(qt.shape, (256, 128))
+        self.assertEqual(qt.dtype, torch.float8_e4m3fn)
+        self.assertEqual(qt._layout_params['scale'], scale)
+        self.assertEqual(qt._layout_params['orig_dtype'], torch.bfloat16)
+        self.assertEqual(qt._layout_type, "TensorCoreFP8Layout")
+
+    def test_dequantize(self):
+        """Test explicit dequantization"""
+
+        fp8_data = torch.ones(10, 20, dtype=torch.float32).to(torch.float8_e4m3fn)
+        scale = torch.tensor(3.0)
+        layout_params = {'scale': scale, 'orig_dtype': torch.float32}
+
+        qt = QuantizedTensor(fp8_data, "TensorCoreFP8Layout", layout_params)
+        dequantized = qt.dequantize()
+
+        self.assertEqual(dequantized.dtype, torch.float32)
+        self.assertTrue(torch.allclose(dequantized, torch.ones(10, 20) * 3.0, rtol=0.1))
+
+    def test_from_float(self):
+        """Test creating QuantizedTensor from float tensor"""
+        float_tensor = torch.randn(64, 32, dtype=torch.float32)
+        scale = torch.tensor(1.5)
+
+        qt = QuantizedTensor.from_float(
+            float_tensor,
+            "TensorCoreFP8Layout",
+            scale=scale,
+            dtype=torch.float8_e4m3fn
+        )
+
+        self.assertIsInstance(qt, QuantizedTensor)
+        self.assertEqual(qt.dtype, torch.float8_e4m3fn)
+        self.assertEqual(qt.shape, (64, 32))
+
+        # Verify dequantization gives approximately original values
+        dequantized = qt.dequantize()
+        mean_rel_error = ((dequantized - float_tensor).abs() / (float_tensor.abs() + 1e-6)).mean()
+        self.assertLess(mean_rel_error, 0.1)
+
+
+class TestGenericUtilities(unittest.TestCase):
+    """Test generic utility operations"""
+
+    def test_detach(self):
+        """Test detach operation on quantized tensor"""
+        fp8_data = torch.randn(10, 20, dtype=torch.float32).to(torch.float8_e4m3fn)
+        scale = torch.tensor(1.5)
+        layout_params = {'scale': scale, 'orig_dtype': torch.float32}
+        qt = QuantizedTensor(fp8_data, "TensorCoreFP8Layout", layout_params)
+
+        # Detach should return a new QuantizedTensor
+        qt_detached = qt.detach()
+
+        self.assertIsInstance(qt_detached, QuantizedTensor)
+        self.assertEqual(qt_detached.shape, qt.shape)
+        self.assertEqual(qt_detached._layout_type, "TensorCoreFP8Layout")
+
+    def test_clone(self):
+        """Test clone operation on quantized tensor"""
+        fp8_data = torch.randn(10, 20, dtype=torch.float32).to(torch.float8_e4m3fn)
+        scale = torch.tensor(1.5)
+        layout_params = {'scale': scale, 'orig_dtype': torch.float32}
+        qt = QuantizedTensor(fp8_data, "TensorCoreFP8Layout", layout_params)
+
+        # Clone should return a new QuantizedTensor
+        qt_cloned = qt.clone()
+
+        self.assertIsInstance(qt_cloned, QuantizedTensor)
+        self.assertEqual(qt_cloned.shape, qt.shape)
+        self.assertEqual(qt_cloned._layout_type, "TensorCoreFP8Layout")
+
+        # Verify it's a deep copy
+        self.assertIsNot(qt_cloned._qdata, qt._qdata)
+
+    @unittest.skipUnless(has_gpu(), "GPU not available")
+    def test_to_device(self):
+        """Test device transfer"""
+        fp8_data = torch.randn(10, 20, dtype=torch.float32).to(torch.float8_e4m3fn)
+        scale = torch.tensor(1.5)
+        layout_params = {'scale': scale, 'orig_dtype': torch.float32}
+        qt = QuantizedTensor(fp8_data, "TensorCoreFP8Layout", layout_params)
+
+        # Moving to same device should work (CPU to CPU)
+        qt_cpu = qt.to('cpu')
+
+        self.assertIsInstance(qt_cpu, QuantizedTensor)
+        self.assertEqual(qt_cpu.device.type, 'cpu')
+        self.assertEqual(qt_cpu._layout_params['scale'].device.type, 'cpu')
+
+
+class TestTensorCoreFP8Layout(unittest.TestCase):
+    """Test the TensorCoreFP8Layout implementation"""
+
+    def test_quantize(self):
+        """Test quantization method"""
+        float_tensor = torch.randn(32, 64, dtype=torch.float32)
+        scale = torch.tensor(1.5)
+
+        qdata, layout_params = TensorCoreFP8Layout.quantize(
+            float_tensor,
+            scale=scale,
+            dtype=torch.float8_e4m3fn
+        )
+
+        self.assertEqual(qdata.dtype, torch.float8_e4m3fn)
+        self.assertEqual(qdata.shape, float_tensor.shape)
+        self.assertIn('scale', layout_params)
+        self.assertIn('orig_dtype', layout_params)
+        self.assertEqual(layout_params['orig_dtype'], torch.float32)
+
+    def test_dequantize(self):
+        """Test dequantization method"""
+        float_tensor = torch.ones(10, 20, dtype=torch.float32) * 3.0
+        scale = torch.tensor(1.0)
+
+        qdata, layout_params = TensorCoreFP8Layout.quantize(
+            float_tensor,
+            scale=scale,
+            dtype=torch.float8_e4m3fn
+        )
+
+        dequantized = TensorCoreFP8Layout.dequantize(qdata, **layout_params)
+
+        # Should approximately match original
+        self.assertTrue(torch.allclose(dequantized, float_tensor, rtol=0.1, atol=0.1))
+
+
+class TestFallbackMechanism(unittest.TestCase):
+    """Test fallback for unsupported operations"""
+
+    def test_unsupported_op_dequantizes(self):
+        """Test that unsupported operations fall back to dequantization"""
+        # Set seed for reproducibility
+        torch.manual_seed(42)
+
+        # Create quantized tensor
+        a_fp32 = torch.randn(10, 20, dtype=torch.float32)
+        scale = torch.tensor(1.0)
+        a_q = QuantizedTensor.from_float(
+            a_fp32,
+            "TensorCoreFP8Layout",
+            scale=scale,
+            dtype=torch.float8_e4m3fn
+        )
+
+        # Call an operation that doesn't have a registered handler
+        # For example, torch.abs
+        result = torch.abs(a_q)
+
+        # Should work via fallback (dequantize → abs → return)
+        self.assertNotIsInstance(result, QuantizedTensor)
+        expected = torch.abs(a_fp32)
+        # FP8 introduces quantization error, so use loose tolerance
+        mean_error = (result - expected).abs().mean()
+        self.assertLess(mean_error, 0.05, f"Mean error {mean_error:.4f} is too large")
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/execution/test_execution.py

@@ -152,12 +152,12 @@ class TestExecution:
     # Initialize server and client
     #
     @fixture(scope="class", autouse=True, params=[
-        # (use_lru, lru_size)
-        (False, 0),
-        (True, 0),
-        (True, 100),
+        { "extra_args" : [], "should_cache_results" : True },
+        { "extra_args" : ["--cache-lru", 0], "should_cache_results" : True },
+        { "extra_args" : ["--cache-lru", 100], "should_cache_results" : True },
+        { "extra_args" : ["--cache-none"], "should_cache_results" : False },
     ])
-    def _server(self, args_pytest, request):
+    def server(self, args_pytest, request):
         # Start server
         pargs = [
             'python','main.py',
@@ -167,12 +167,10 @@ class TestExecution:
             '--extra-model-paths-config', 'tests/execution/extra_model_paths.yaml',
             '--cpu',
         ]
-        use_lru, lru_size = request.param
-        if use_lru:
-            pargs += ['--cache-lru', str(lru_size)]
+        pargs += [ str(param) for param in request.param["extra_args"] ]
         print("Running server with args:", pargs)  # noqa: T201
         p = subprocess.Popen(pargs)
-        yield
+        yield request.param
         p.kill()
         torch.cuda.empty_cache()
 
@@ -193,7 +191,7 @@ class TestExecution:
         return comfy_client
 
     @fixture(scope="class", autouse=True)
-    def shared_client(self, args_pytest, _server):
+    def shared_client(self, args_pytest, server):
         client = self.start_client(args_pytest["listen"], args_pytest["port"])
         yield client
         del client
@@ -225,7 +223,7 @@ class TestExecution:
         assert result.did_run(mask)
         assert result.did_run(lazy_mix)
 
-    def test_full_cache(self, client: ComfyClient, builder: GraphBuilder):
+    def test_full_cache(self, client: ComfyClient, builder: GraphBuilder, server):
         g = builder
         input1 = g.node("StubImage", content="BLACK", height=512, width=512, batch_size=1)
         input2 = g.node("StubImage", content="NOISE", height=512, width=512, batch_size=1)
@@ -237,9 +235,12 @@ class TestExecution:
         client.run(g)
         result2 = client.run(g)
         for node_id, node in g.nodes.items():
-            assert not result2.did_run(node), f"Node {node_id} ran, but should have been cached"
+            if server["should_cache_results"]:
+                assert not result2.did_run(node), f"Node {node_id} ran, but should have been cached"
+            else:
+                assert result2.did_run(node), f"Node {node_id} was cached, but should have been run"
 
-    def test_partial_cache(self, client: ComfyClient, builder: GraphBuilder):
+    def test_partial_cache(self, client: ComfyClient, builder: GraphBuilder, server):
         g = builder
         input1 = g.node("StubImage", content="BLACK", height=512, width=512, batch_size=1)
         input2 = g.node("StubImage", content="NOISE", height=512, width=512, batch_size=1)
@@ -251,8 +252,12 @@ class TestExecution:
         client.run(g)
         mask.inputs['value'] = 0.4
         result2 = client.run(g)
-        assert not result2.did_run(input1), "Input1 should have been cached"
-        assert not result2.did_run(input2), "Input2 should have been cached"
+        if server["should_cache_results"]:
+            assert not result2.did_run(input1), "Input1 should have been cached"
+            assert not result2.did_run(input2), "Input2 should have been cached"
+        else:
+            assert result2.did_run(input1), "Input1 should have been rerun"
+            assert result2.did_run(input2), "Input2 should have been rerun"
 
     def test_error(self, client: ComfyClient, builder: GraphBuilder):
         g = builder
@@ -411,7 +416,7 @@ class TestExecution:
         input2 = g.node("StubImage", id="removeme", content="WHITE", height=512, width=512, batch_size=1)
         client.run(g)
 
-    def test_custom_is_changed(self, client: ComfyClient, builder: GraphBuilder):
+    def test_custom_is_changed(self, client: ComfyClient, builder: GraphBuilder, server):
         g = builder
         # Creating the nodes in this specific order previously caused a bug
         save = g.node("SaveImage")
@@ -427,7 +432,10 @@ class TestExecution:
         result3 = client.run(g)
         result4 = client.run(g)
         assert result1.did_run(is_changed), "is_changed should have been run"
-        assert not result2.did_run(is_changed), "is_changed should have been cached"
+        if server["should_cache_results"]:
+            assert not result2.did_run(is_changed), "is_changed should have been cached"
+        else:
+            assert result2.did_run(is_changed), "is_changed should have been re-run"
         assert result3.did_run(is_changed), "is_changed should have been re-run"
         assert result4.did_run(is_changed), "is_changed should not have been cached"
 
@@ -514,7 +522,7 @@ class TestExecution:
         assert len(images2) == 1, "Should have 1 image"
 
     # This tests that only constant outputs are used in the call to `IS_CHANGED`
-    def test_is_changed_with_outputs(self, client: ComfyClient, builder: GraphBuilder):
+    def test_is_changed_with_outputs(self, client: ComfyClient, builder: GraphBuilder, server):
         g = builder
         input1 = g.node("StubConstantImage", value=0.5, height=512, width=512, batch_size=1)
         test_node = g.node("TestIsChangedWithConstants", image=input1.out(0), value=0.5)
@@ -530,7 +538,11 @@ class TestExecution:
         images = result.get_images(output)
         assert len(images) == 1, "Should have 1 image"
         assert numpy.array(images[0]).min() == 63 and numpy.array(images[0]).max() == 63, "Image should have value 0.25"
-        assert not result.did_run(test_node), "The execution should have been cached"
+        if server["should_cache_results"]:
+            assert not result.did_run(test_node), "The execution should have been cached"
+        else:
+            assert result.did_run(test_node), "The execution should have been re-run"
+
 
     def test_parallel_sleep_nodes(self, client: ComfyClient, builder: GraphBuilder, skip_timing_checks):
         # Warmup execution to ensure server is fully initialized