I have searched the existing issues and discussions.
I am using the latest version of Open WebUI.
Installation Method
Other
Open WebUI Version
v0.6.25
Ollama Version (if applicable)
No response
Operating System
Linux
Browser (if applicable)
Chrome
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
Any internal reasoning produced after the tool result should remain hidden within the reasoning wrapper/tags.
No orphan closing tag should appear without a corresponding opening tag
Actual Behavior
The model “thinks,” then issues the MCP tool call.
After the tool result is shown, additional “thinking” tokens are displayed to the user (not wrapped).
Only the closing reasoning tag appears afterward (no opening tag).
Internal reasoning becomes visible in the transcript
Steps to Reproduce
Configure an MCP tool (In my case a Tavily web search tool) in Open WebUI.
Run Qwen/Qwen3-32B-AWQ in native function-calling mode with streaming enabled.
Prompt the model with with a question that force him to use the tool and to keep thinking after using it
Observe the streamed transcript in the chat UI.
Logs & Screenshots
Additional Information
Reproduced consistently with Qwen/Qwen3-32B-AWQ. Similar models that emit structured reasoning may also trigger it.
Originally created by @FabioPolito24 on GitHub (Aug 27, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/16973
### Check Existing Issues
- [x] I have searched the existing issues and discussions.
- [x] I am using the latest version of Open WebUI.
### Installation Method
Other
### Open WebUI Version
v0.6.25
### Ollama Version (if applicable)
_No response_
### Operating System
Linux
### Browser (if applicable)
Chrome
### 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
Any internal reasoning produced after the tool result should remain hidden within the reasoning wrapper/tags.
No orphan closing tag should appear without a corresponding opening tag
### Actual Behavior
The model “thinks,” then issues the MCP tool call.
After the tool result is shown, additional “thinking” tokens are displayed to the user (not wrapped).
Only the closing reasoning tag appears afterward (no opening tag).
Internal reasoning becomes visible in the transcript
### Steps to Reproduce
Configure an MCP tool (In my case a Tavily web search tool) in Open WebUI.
Run Qwen/Qwen3-32B-AWQ in native function-calling mode with streaming enabled.
Prompt the model with with a question that force him to use the tool and to keep thinking after using it
Observe the streamed transcript in the chat UI.
### Logs & Screenshots
<img width="1390" height="1313" alt="Image" src="https://github.com/user-attachments/assets/33d860e6-99f5-455c-9de5-a488e2d0b778" />
### Additional Information
Reproduced consistently with Qwen/Qwen3-32B-AWQ. Similar models that emit structured reasoning may also trigger it.
GiteaMirror
added the bug label 2026-04-20 00:08:58 -05:00
I am also facing this with Qwen3 reasoning models running via VLLM. Anyone has any way to fix this?
<!-- gh-comment-id:3481799999 -->
@gkachru commented on GitHub (Nov 3, 2025):
I am also facing this with Qwen3 reasoning models running via VLLM. Anyone has any way to fix this?
@gkachru can you test the /dev branch? A fix related to thinking tags was deployed there.
<!-- gh-comment-id:3482100706 -->
@Classic298 commented on GitHub (Nov 3, 2025):
@gkachru can you test the /dev branch? A fix related to thinking tags was deployed there.
Blocking a user prevents them from interacting with repositories, such as opening or commenting on pull requests or issues. Learn more about blocking a user.
Originally created by @FabioPolito24 on GitHub (Aug 27, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/16973
Check Existing Issues
Installation Method
Other
Open WebUI Version
v0.6.25
Ollama Version (if applicable)
No response
Operating System
Linux
Browser (if applicable)
Chrome
Confirmation
README.md.Expected Behavior
Any internal reasoning produced after the tool result should remain hidden within the reasoning wrapper/tags.
No orphan closing tag should appear without a corresponding opening tag
Actual Behavior
The model “thinks,” then issues the MCP tool call.
After the tool result is shown, additional “thinking” tokens are displayed to the user (not wrapped).
Only the closing reasoning tag appears afterward (no opening tag).
Internal reasoning becomes visible in the transcript
Steps to Reproduce
Configure an MCP tool (In my case a Tavily web search tool) in Open WebUI.
Run Qwen/Qwen3-32B-AWQ in native function-calling mode with streaming enabled.
Prompt the model with with a question that force him to use the tool and to keep thinking after using it
Observe the streamed transcript in the chat UI.
Logs & Screenshots
Additional Information
Reproduced consistently with Qwen/Qwen3-32B-AWQ. Similar models that emit structured reasoning may also trigger it.
@tjbck commented on GitHub (Aug 27, 2025):
This behaviour depends on the model/inference engine you're using.
@gkachru commented on GitHub (Nov 3, 2025):
I am also facing this with Qwen3 reasoning models running via VLLM. Anyone has any way to fix this?
@Classic298 commented on GitHub (Nov 3, 2025):
@gkachru can you test the /dev branch? A fix related to thinking tags was deployed there.