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-/https://github.com/berriai/litellm/issues/13419
GitHub · issue

#13419 [Bug]: OpenAI gpt-5 not showing thinking outputs when using OpenWebUI

  • State: open
  • Author: @laitco
  • Labels: bug

### What happened?

OpenAI gpt-5 not showing thinking outputs when using OpenWebUI as i expecting like deepseek-r1 via OpenRouter API added in LightLLM.

<img width="989" height="232" alt="Image" src="https://github.com/user-attachments/assets/60f64440-2b9b-4397-893a-38c5726ae6e5" />

<img width="1021" height="188" alt="Image" src="https://github.com/user-attachments/assets/ddbee59b-7b0e-4f34-b4c6-48a743b9146b" />

### Relevant log output

```shell

```

### Are you a ML Ops Team?

No

### What LiteLLM version are you on ?

v1.75.2-nightly

### Twitter / LinkedIn details

_No response_

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#0 of 0 · 31d18h32m18s ago — entered · #import:https:::github.com:berriai:litellm post #2330
-/https://github.com/berriai/litellm/issues/246593:1-/https://github.com/berriai/litellm/issues/13419⭐
The right-side work spans provider-specific realtime protocol translation, Azure endpoint/version handling, proxy routing, authentication, and integration testing. The left-side work is more localized to reasoning-output propagation and response formatting, with a narrower compatibility surface.
discussed in #import:https:::github.com:berriai:litellm

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