Gemini Thinking 1-21 No Longer Returning Thoughts (API)

Gemini API
,
1

The models’ thoughts for the latest Gemini thinking are no longer displayed in the response regardless of values within the ‘include_thoughts’ element. Anyone else having this issue?

2

same for me. has Gemini changed the way we can interact with thinking model

4

See this Thoughts are missing (CoT not included anymore)

6

Hey User,
Yes, we no longer return thoughts. However, I tried gemini-2.5-flash-preview-05-20 and you can get thought summary. Below is the config:

config=types.GenerateContentConfig(
    thinking_config=types.ThinkingConfig(
      include_thoughts=True
    )

Thank you!