github-starred/open-webui
2
0
Fork 0
mirror of https://github.com/open-webui/open-webui.git synced 2026-05-21 00:52:24 -05:00
Code Issues 2.2k Packages Projects Releases 129 Wiki Activity

[GH-ISSUE #17901] issue: Incompatibility with Sonnet 4.5 #73034

New Issue
Closed
opened 2026-05-13 05:18:15 -05:00 by GiteaMirror · 15 comments
GiteaMirror commented 2026-05-13 05:18:15 -05:00
Owner
Copy Link

Originally created by @mike-stewart on GitHub (Sep 29, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/17901

Check Existing Issues

  • I have searched for any existing and/or related issues.
  • I have searched for any existing and/or related discussions.
  • I am using the latest version of Open WebUI.

Installation Method

Docker

Open WebUI Version

0.6.26

Ollama Version (if applicable)

No response

Operating System

Docker

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 provided every relevant configuration, setting, and environment variable used in my setup.
  • I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
  • I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
  • Start with the initial platform/version/OS and dependencies used,
  • Specify exact install/launch/configure commands,
  • List URLs visited, user input (incl. example values/emails/passwords if needed),
  • Describe all options and toggles enabled or changed,
  • Include any files or environmental changes,
  • Identify the expected and actual result at each stage,
  • Ensure any reasonably skilled user can follow and hit the same issue.

Expected Behavior

Using OpenWebUI with bedrock-access-gateway, per the Integrate with Amazon Bedrock doc, it should be possible to use the new Sonnet 4.5 model.

Actual Behavior

The following error is received:

Uh-oh! There was an issue with the response.
400: An error occurred (ValidationException) when calling the ConverseStream operation: The model returned the following errors: `temperature` and `top_p` cannot both be specified for this model. Please use only one.

Steps to Reproduce

See above.

Logs & Screenshots

See above.

Additional Information

This footnote in the What's new in Claude Sonnet 4.5 doc provides some context:

Sonnet 4.5 does not allow both temperature and top_p parameters to be specified. Please use only one.
​

It would seem that we need the ability to disable one of those two parameters at the model level. Would it be possible to add this to the model config screen - to turn off parameters?

Originally created by @mike-stewart on GitHub (Sep 29, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/17901 ### Check Existing Issues - [x] I have searched for any existing and/or related issues. - [x] I have searched for any existing and/or related discussions. - [x] I am using the latest version of Open WebUI. ### Installation Method Docker ### Open WebUI Version 0.6.26 ### Ollama Version (if applicable) _No response_ ### Operating System Docker ### 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 **provided every relevant configuration, setting, and environment variable used in my setup.** - [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc). - [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps: - Start with the initial platform/version/OS and dependencies used, - Specify exact install/launch/configure commands, - List URLs visited, user input (incl. example values/emails/passwords if needed), - Describe all options and toggles enabled or changed, - Include any files or environmental changes, - Identify the expected and actual result at each stage, - Ensure any reasonably skilled user can follow and hit the same issue. ### Expected Behavior Using OpenWebUI with bedrock-access-gateway, per the [Integrate with Amazon Bedrock doc](https://docs.openwebui.com/tutorials/integrations/amazon-bedrock/), it should be possible to use the new Sonnet 4.5 model. ### Actual Behavior The following error is received: ``` Uh-oh! There was an issue with the response. 400: An error occurred (ValidationException) when calling the ConverseStream operation: The model returned the following errors: `temperature` and `top_p` cannot both be specified for this model. Please use only one. ``` ### Steps to Reproduce See above. ### Logs & Screenshots See above. ### Additional Information This footnote in the [What's new in Claude Sonnet 4.5](https://docs.claude.com/en/docs/about-claude/models/whats-new-sonnet-4-5) doc provides some context: > Sonnet 4.5 does not allow both temperature and top_p parameters to be specified. Please use only one. [​](https://docs.claude.com/en/docs/about-claude/models/whats-new-sonnet-4-5#next-steps) It would seem that we need the ability to disable one of those two parameters at the model level. Would it be possible to add this to the model config screen - to turn off parameters?
GiteaMirror added the question label 2026-05-13 05:18:16 -05:00
GiteaMirror commented 2026-05-13 05:18:17 -05:00
Author
Owner
Copy Link

@Classic298 commented on GitHub (Sep 29, 2025):

Well it says right there temperature and top_p cannot both be specified for this model. Please use only one.``

you use these parameters somewhere, be it in the chat specific chat controls or in the advanced model parameters or in whatever middleware you use to integrate claude sonnet 4.5

<!-- gh-comment-id:3348811969 --> @Classic298 commented on GitHub (Sep 29, 2025): Well it says right there `temperature` and `top_p` cannot both be specified for this model. Please use only one.`` you use these parameters somewhere, be it in the chat specific chat controls or in the advanced model parameters or in whatever middleware you use to integrate claude sonnet 4.5
GiteaMirror commented 2026-05-13 05:18:18 -05:00
Author
Owner
Copy Link

@mike-stewart commented on GitHub (Sep 29, 2025):

@Classic298 I don't seem to be able to disable sending one of these parameters from within Open WebUI. Am I missing something?

<!-- gh-comment-id:3348844598 --> @mike-stewart commented on GitHub (Sep 29, 2025): @Classic298 I don't seem to be able to disable sending one of these parameters from within Open WebUI. Am I missing something?
GiteaMirror commented 2026-05-13 05:18:19 -05:00
Author
Owner
Copy Link

@taylorwilsdon commented on GitHub (Sep 29, 2025):

Yes, set them under the Advanced params @mike-stewart. Just click them to default. This isn't specific to Anthropic or Claude, all the OpenAI reasoning models don't support temperature either (or some require it to be set specifically to 1)

<!-- gh-comment-id:3348850947 --> @taylorwilsdon commented on GitHub (Sep 29, 2025): Yes, set them under the Advanced params @mike-stewart. Just click them to default. This isn't specific to Anthropic or Claude, all the OpenAI reasoning models don't support temperature either (or some require it to be set specifically to 1)
GiteaMirror commented 2026-05-13 05:18:20 -05:00
Author
Owner
Copy Link

@mike-stewart commented on GitHub (Sep 29, 2025):

Image

@taylorwilsdon @Classic298 I checked that already. Here's a screenshot showing that both are currently set to default, but I'm getting the error anyway.

They are the same in model settings in the administration screen.

<!-- gh-comment-id:3348859140 --> @mike-stewart commented on GitHub (Sep 29, 2025): <img width="1368" height="327" alt="Image" src="https://github.com/user-attachments/assets/8c392f94-e14a-4115-94b8-ba99c3e8b1b6" /> @taylorwilsdon @Classic298 I checked that already. Here's a screenshot showing that both are currently set to default, but I'm getting the error anyway. They are the same in model settings in the administration screen.
GiteaMirror commented 2026-05-13 05:18:21 -05:00
Author
Owner
Copy Link

@Classic298 commented on GitHub (Sep 29, 2025):

@mike-stewart that's just the chat control, also check the model settings > advanced parameters

And ALSO check your middleware or whatever you use to integrate this model

<!-- gh-comment-id:3348890721 --> @Classic298 commented on GitHub (Sep 29, 2025): @mike-stewart that's just the chat control, also check the model settings > advanced parameters And ALSO check your middleware or whatever you use to integrate this model
GiteaMirror commented 2026-05-13 05:18:21 -05:00
Author
Owner
Copy Link

@taylorwilsdon commented on GitHub (Sep 29, 2025):

Image [@taylorwilsdon](https://github.com/taylorwilsdon) [@Classic298](https://github.com/Classic298) I checked that already. Here's a screenshot showing that both are currently set to default, but I'm getting the error anyway.

They are the same in model settings in the administration screen.

That screenshot is of the user override panel, which won't matter here. Show the advanced settings view from Admin -> Models -> Sonnet 4.5. Works fine in Open WebUI fwiw, it's already live on my instance.

<!-- gh-comment-id:3348892184 --> @taylorwilsdon commented on GitHub (Sep 29, 2025): > <img alt="Image" width="1368" height="327" src="https://private-user-images.githubusercontent.com/2521245/495372052-8c392f94-e14a-4115-94b8-ba99c3e8b1b6.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.tfh-EHwwBapAbwmEJXI6ry5l0u6Ww0NKm4cxKA8QPKE"> > [@taylorwilsdon](https://github.com/taylorwilsdon) [@Classic298](https://github.com/Classic298) I checked that already. Here's a screenshot showing that both are currently set to default, but I'm getting the error anyway. > > They are the same in model settings in the administration screen. That screenshot is of the user override panel, which won't matter here. Show the advanced settings view from Admin -> Models -> Sonnet 4.5. Works fine in Open WebUI fwiw, it's already live on my instance.
GiteaMirror commented 2026-05-13 05:18:21 -05:00
Author
Owner
Copy Link

@Classic298 commented on GitHub (Sep 29, 2025):

@taylorwilsdon thanks for confirming it works for you

<!-- gh-comment-id:3348894403 --> @Classic298 commented on GitHub (Sep 29, 2025): @taylorwilsdon thanks for confirming it works for you
GiteaMirror commented 2026-05-13 05:18:23 -05:00
Author
Owner
Copy Link

@mike-stewart commented on GitHub (Sep 29, 2025):

image

@Classic298 @taylorwilsdon This shows the same in my model settings. Note that they are both default.

Can this be reopened?

<!-- gh-comment-id:3348970279 --> @mike-stewart commented on GitHub (Sep 29, 2025): ![image](https://github.com/user-attachments/assets/24a88dfc-7d35-4998-af24-aa830c8b96cd) @Classic298 @taylorwilsdon This shows the same in my model settings. Note that they are both default. Can this be reopened?
GiteaMirror commented 2026-05-13 05:18:25 -05:00
Author
Owner
Copy Link

@Classic298 commented on GitHub (Sep 29, 2025):

Please answer my other question thoroughly.

If this isn't the cause either, then i can reopen

<!-- gh-comment-id:3348997930 --> @Classic298 commented on GitHub (Sep 29, 2025): Please answer my other question thoroughly. If this isn't the cause either, then i can reopen
GiteaMirror commented 2026-05-13 05:18:25 -05:00
Author
Owner
Copy Link

@mike-stewart commented on GitHub (Sep 29, 2025):

@Classic298 What would you like me to check specifically? I'm using the bedrock-access-gateway, following the OpenWebUI doc linked above. I don't have any model parameters configured in that - everything is default.

<!-- gh-comment-id:3349012056 --> @mike-stewart commented on GitHub (Sep 29, 2025): @Classic298 What would you like me to check specifically? I'm using the bedrock-access-gateway, following the OpenWebUI doc linked above. I don't have any model parameters configured in that - everything is default.
GiteaMirror commented 2026-05-13 05:18:26 -05:00
Author
Owner
Copy Link

@Classic298 commented on GitHub (Sep 29, 2025):

I don't know how the BAG works exactly and therefore i am kindly asking you to verify what those defaults are, that are being set, and if necessary try overwriting the defaults by not setting the temperature or the top value as the error code suggests.

This is 99% not an Open WebUI issue but a misconfiguration somewhere on your Middleware.

Open WebUI supports claude sonent 4.5, and the error message is very clear about what the issue is.

Now you just need to find the culprit.

<!-- gh-comment-id:3349023540 --> @Classic298 commented on GitHub (Sep 29, 2025): I don't know how the BAG works exactly and therefore i am kindly asking you to verify what those defaults are, that are being set, and if necessary try overwriting the defaults by not setting the temperature or the top value as the error code suggests. This is 99% not an Open WebUI issue but a misconfiguration somewhere on your Middleware. Open WebUI supports claude sonent 4.5, and the error message is very clear about what the issue is. Now you just need to find the culprit.
GiteaMirror commented 2026-05-13 05:18:27 -05:00
Author
Owner
Copy Link

@WilJonesPropel commented on GitHub (Sep 30, 2025):

BAG has been updated to send the correct params for Sonnet 4.5.
66cb51bb36

<!-- gh-comment-id:3351351401 --> @WilJonesPropel commented on GitHub (Sep 30, 2025): BAG has been updated to send the correct params for Sonnet 4.5. https://github.com/aws-samples/bedrock-access-gateway/commit/66cb51bb36ea8fcea7c0074ea164843879090ccf
GiteaMirror commented 2026-05-13 05:18:28 -05:00
Author
Owner
Copy Link

@mameesie commented on GitHub (Oct 21, 2025):

i have the same problem. i am using Anthropic Manifold Pipe to add antropic models. i added {"id": "claude-sonnet-4-5-20250929", "name": "claude-4.5-sonnet-20250929"} and on the first try i got the error "temperature and top_p cannot both be specified for this model. Please use only one."

<!-- gh-comment-id:3425907857 --> @mameesie commented on GitHub (Oct 21, 2025): i have the same problem. i am using Anthropic Manifold Pipe to add antropic models. i added {"id": "claude-sonnet-4-5-20250929", "name": "claude-4.5-sonnet-20250929"} and on the first try i got the error "temperature and top_p cannot both be specified for this model. Please use only one."
GiteaMirror commented 2026-05-13 05:18:29 -05:00
Author
Owner
Copy Link

@Classic298 commented on GitHub (Oct 21, 2025):

Need to modify your pipe then, this is not an open webui issue

<!-- gh-comment-id:3425991447 --> @Classic298 commented on GitHub (Oct 21, 2025): Need to modify your pipe then, this is not an open webui issue
GiteaMirror commented 2026-05-13 05:18:29 -05:00
Author
Owner
Copy Link

@mameesie commented on GitHub (Oct 21, 2025):

you where right i changed the pipe and it works now

<!-- gh-comment-id:3426187388 --> @mameesie commented on GitHub (Oct 21, 2025): you where right i changed the pipe and it works now
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
bug
confirmed
confirmed issue
core
documentation
enhancement
good first issue
help wanted
non-core
pull-request
Mirrored from GitHub Pull Request
 python
question
testing wanted
No Label question
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
GiteaMirror ninjasurge
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: github-starred/open-webui#73034
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?