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4 Commits

Author SHA1 Message Date
Jedrzej Kosinski
fa6c7eb86f Merge branch 'master' into rename-mahiro 2026-02-28 20:48:49 -08:00
bymyself
8c41e2393b rename: Similarity-Adaptive Guidance → Positive-Biased Guidance (per reviewer)
- display_name changed to 'Positive-Biased Guidance' to avoid SAG acronym collision
- search_aliases expanded: mahiro, mahiro cfg, similarity-adaptive guidance, positive-biased cfg
- ruff format applied
2026-02-27 17:13:40 -08:00
bymyself
93175036fb feat: add search aliases for old mahiro name
Amp-Thread-ID: https://ampcode.com/threads/T-019c0d36-8b43-745f-b7b2-e35b53f17fa1
2026-02-27 17:12:50 -08:00
bymyself
4528ff9870 refactor: rename Mahiro CFG to Similarity-Adaptive Guidance
Rename the display name to better describe what the node does:
adaptively blends guidance based on cosine similarity between
positive and negative conditions.

Amp-Thread-ID: https://ampcode.com/threads/T-019c0d36-8b43-745f-b7b2-e35b53f17fa1
Co-authored-by: Amp <amp@ampcode.com>
2026-02-27 17:12:50 -08:00

View File

@@ -10,7 +10,7 @@ class Mahiro(io.ComfyNode):
def define_schema(cls):
return io.Schema(
node_id="Mahiro",
display_name="Mahiro CFG",
display_name="Positive-Biased Guidance",
category="_for_testing",
description="Modify the guidance to scale more on the 'direction' of the positive prompt rather than the difference between the negative prompt.",
inputs=[
@@ -20,27 +20,35 @@ class Mahiro(io.ComfyNode):
io.Model.Output(display_name="patched_model"),
],
is_experimental=True,
search_aliases=[
"mahiro",
"mahiro cfg",
"similarity-adaptive guidance",
"positive-biased cfg",
],
)
@classmethod
def execute(cls, model) -> io.NodeOutput:
m = model.clone()
def mahiro_normd(args):
scale: float = args['cond_scale']
cond_p: torch.Tensor = args['cond_denoised']
uncond_p: torch.Tensor = args['uncond_denoised']
#naive leap
scale: float = args["cond_scale"]
cond_p: torch.Tensor = args["cond_denoised"]
uncond_p: torch.Tensor = args["uncond_denoised"]
# naive leap
leap = cond_p * scale
#sim with uncond leap
# sim with uncond leap
u_leap = uncond_p * scale
cfg = args["denoised"]
merge = (leap + cfg) / 2
normu = torch.sqrt(u_leap.abs()) * u_leap.sign()
normm = torch.sqrt(merge.abs()) * merge.sign()
sim = F.cosine_similarity(normu, normm).mean()
simsc = 2 * (sim+1)
wm = (simsc*cfg + (4-simsc)*leap) / 4
simsc = 2 * (sim + 1)
wm = (simsc * cfg + (4 - simsc) * leap) / 4
return wm
m.set_model_sampler_post_cfg_function(mahiro_normd)
return io.NodeOutput(m)