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[GH-ISSUE #493] issue: Usage information is not passed to the Langfuse generation #223

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opened 2026-10-18 21:03:50 +00:00 by bsakaguchi · 10 comments

bsakaguchi commented

2026-10-18 21:03:50 +00:00

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Originally created by @highyield3011 on GitHub (Apr 8, 2025).
Original GitHub issue: https://github.com/open-webui/pipelines/issues/493

Check Existing Issues

I have searched the existing issues and discussions.
I am using the latest version of Open WebUI.

Installation Method

Docker

Open WebUI Version

v0.5.20

Ollama Version (if applicable)

No response

Operating System

Ubuntu 22.04

Browser (if applicable)

No response

Confirmation

I have read and followed all instructions in README.md.
I am using the latest version of both Open WebUI and Ollama.
I have included the browser console logs.
I have included the Docker container logs.
I have listed steps to reproduce the bug in detail.

Expected Behavior

Usage information should be passed to Langfuse

Actual Behavior

Usage information is not passed to Langfuse

Steps to Reproduce

Integrate Open WebUI with Langfuse - https://langfuse.com/docs/integrations/openwebui
Start a new chat
Check traces in Langfuse

Logs & Screenshots

Please also refer to the reply from the author of Langfuse:
https://github.com/langfuse/langfuse/issues/6299

Additional Information

No response

Originally created by @highyield3011 on GitHub (Apr 8, 2025). Original GitHub issue: https://github.com/open-webui/pipelines/issues/493 ### Check Existing Issues - [x] I have searched the existing issues and discussions. - [x] I am using the latest version of Open WebUI. ### Installation Method Docker ### Open WebUI Version v0.5.20 ### Ollama Version (if applicable) _No response_ ### Operating System Ubuntu 22.04 ### Browser (if applicable) _No response_ ### Confirmation - [x] I have read and followed all instructions in `README.md`. - [x] I am using the latest version of **both** Open WebUI and Ollama. - [x] I have included the browser console logs. - [x] I have included the Docker container logs. - [x] I have listed steps to reproduce the bug in detail. ### Expected Behavior Usage information should be passed to Langfuse ### Actual Behavior Usage information is not passed to Langfuse ### Steps to Reproduce 1. Integrate Open WebUI with Langfuse - https://langfuse.com/docs/integrations/openwebui 2. Start a new chat 3. Check traces in Langfuse ### Logs & Screenshots ![Image](https://github.com/user-attachments/assets/e4fcaaf9-b9a8-4c5d-bb1e-7f21e1957ca9) ![Image](https://github.com/user-attachments/assets/82d2b8b1-4f88-4f5d-a726-cce0cc957c13) Please also refer to the reply from the author of Langfuse: https://github.com/langfuse/langfuse/issues/6299 ### Additional Information _No response_

bsakaguchi added the

bug

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2026-10-18 21:03:50 +00:00

bsakaguchi commented

2026-10-18 21:03:51 +00:00

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@eanson023 commented on GitHub (Jan 5, 2026):

same issue

@eanson023 commented on GitHub (Jan 5, 2026): same issue

bsakaguchi commented

2026-10-18 21:03:51 +00:00

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@rgaricano commented on GitHub (Jan 5, 2026):

You can try with the updated pipeline, it's on PR https://github.com/open-webui/pipelines/pull/586
For more reference, issue https://github.com/open-webui/pipelines/issues/556

@rgaricano commented on GitHub (Jan 5, 2026): You can try with the updated pipeline, it's on PR https://github.com/open-webui/pipelines/pull/586 For more reference, issue https://github.com/open-webui/pipelines/issues/556

bsakaguchi commented

2026-10-18 21:03:51 +00:00

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@eanson023 commented on GitHub (Jan 5, 2026):

You can try with the updated pipeline, it's on PR #586 For more reference, issue #556

Thanks for your help! @rgaricano

I'm using the new langfuse filter from https://github.com/rgaricano/pipelines/blob/main/examples/filters/langfuse_v3_filter_pipeline.py

But the token costs are still unrecorded.

@eanson023 commented on GitHub (Jan 5, 2026): > You can try with the updated pipeline, it's on PR [#586](https://github.com/open-webui/pipelines/pull/586) For more reference, issue [#556](https://github.com/open-webui/pipelines/issues/556) Thanks for your help! @rgaricano I'm using the new langfuse filter from https://github.com/rgaricano/pipelines/blob/main/examples/filters/langfuse_v3_filter_pipeline.py But the token costs are still unrecorded. <img width="1323" height="90" alt="Image" src="https://github.com/user-attachments/assets/a6f5aed3-9858-4d9e-81e7-ad29f2e120d7" />

bsakaguchi commented

2026-10-18 21:03:51 +00:00

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@eanson023 commented on GitHub (Jan 5, 2026):

@rgaricano

I guarantee that the 'Usage' box of model capabilities is enabled before the LLM calling.

@eanson023 commented on GitHub (Jan 5, 2026): @rgaricano I guarantee that the 'Usage' box of model capabilities is enabled before the LLM calling.

bsakaguchi commented

2026-10-18 21:03:51 +00:00

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@rgaricano commented on GitHub (Jan 5, 2026):

@eanson023
you can try upgrading the langfuse client: pip install -U langfuse (3.10.5 here)

@rgaricano commented on GitHub (Jan 5, 2026): @eanson023 you can try upgrading the langfuse client: `pip install -U langfuse` (3.10.5 here)

bsakaguchi commented

2026-10-18 21:03:51 +00:00

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@eanson023 commented on GitHub (Jan 5, 2026):

@rgaricano Thanks for your reply. Where should I change this? I installed and updated Langfuse before starting Open-WebUI, but the cost recording still isn't working. Do I need to make changes elsewhere?

@eanson023 commented on GitHub (Jan 5, 2026): @rgaricano Thanks for your reply. Where should I change this? I installed and updated Langfuse before starting Open-WebUI, but the cost recording still isn't working. Do I need to make changes elsewhere?

bsakaguchi commented

2026-10-18 21:03:52 +00:00

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@rgaricano commented on GitHub (Jan 5, 2026):

@eanson023

Edit the langfuse pipeline and replace the requirements:

"""
title: Langfuse Filter Pipeline for v3
author: open-webui
date: 2025-12-07
version: 0.0.2
license: MIT
description: A filter pipeline that uses Langfuse v3.
requirements: langfuse>=3.10.5
"""

And relaunch the pipelines server.

(I updated the langfuse v3 pipeline with this change)
(another direct way is just run the pip install -U langfuse in the same python env where you are running the pipelines server
or edit the pipelines/requirements.txt to force this langfuse client version, changing langfuse by langfuse>=3.10.5 & relaunch the pipeline server, running start.sh or start.batagain )

@rgaricano commented on GitHub (Jan 5, 2026): @eanson023 Edit the langfuse pipeline and replace the requirements: ``` """ title: Langfuse Filter Pipeline for v3 author: open-webui date: 2025-12-07 version: 0.0.2 license: MIT description: A filter pipeline that uses Langfuse v3. requirements: langfuse>=3.10.5 """ ``` And relaunch the pipelines server. (I updated the langfuse v3 pipeline with this change) (another direct way is just run the `pip install -U langfuse` in the same python env where you are running the pipelines server or edit the pipelines/requirements.txt to force this langfuse client version, changing `langfuse` by `langfuse>=3.10.5` & relaunch the pipeline server, running `start.sh` or `start.bat`again )

bsakaguchi commented

2026-10-18 21:03:52 +00:00

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@rgaricano commented on GitHub (Jan 5, 2026):

@eanson023

Also you can take a look to the @YetheSamartaka open-webui function (instead of use pipelines for that): https://github.com/open-webui/pipelines/pull/586#issuecomment-3710024202

@rgaricano commented on GitHub (Jan 5, 2026): @eanson023 Also you can take a look to the @YetheSamartaka open-webui function (instead of use pipelines for that): https://github.com/open-webui/pipelines/pull/586#issuecomment-3710024202

bsakaguchi commented

2026-10-18 21:03:52 +00:00

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@eanson023 commented on GitHub (Jan 5, 2026):

I'll take a look at it tomorrow, thanks for the reply @rgaricano

@eanson023 commented on GitHub (Jan 5, 2026): I'll take a look at it tomorrow, thanks for the reply @rgaricano

bsakaguchi commented

2026-10-18 21:03:52 +00:00

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@vinh900 commented on GitHub (Jan 7, 2026):

Vào 19:42 T.2, 5 Th1, 2026 eanson @.***> đã viết:

eanson023 left a comment (open-webui/pipelines#493)
https://github.com/open-webui/pipelines/issues/493#issuecomment-3710267798

I'll take a look at it tomorrow, thanks for the reply @rgaricano
https://github.com/rgaricano

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@vinh900 commented on GitHub (Jan 7, 2026): Vào 19:42 T.2, 5 Th1, 2026 eanson ***@***.***> đã viết: > *eanson023* left a comment (open-webui/pipelines#493) > <https://github.com/open-webui/pipelines/issues/493#issuecomment-3710267798> > > I'll take a look at it tomorrow, thanks for the reply @rgaricano > <https://github.com/rgaricano> > > — > Reply to this email directly, view it on GitHub > <https://github.com/open-webui/pipelines/issues/493#issuecomment-3710267798>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/BTTHD2RU7KUF6YH3PLNI3RD4FJLZZAVCNFSM6AAAAACQV2Y7MKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTOMJQGI3DONZZHA> > . > You are receiving this because you are subscribed to this thread.Message > ID: ***@***.***> >