Gemini Chat Panel Error: Thinking_config.include_thoughts is only enabled when thinking is enabled

[Starblack_Media]

I’m experiencing an issue with the Firebase Studio AI chat panel.

Error:

Sorry, I hit a snag. Please try again shortly or modify your prompt.

[GoogleGenerativeAI Error]:
Error fetching from https://monospace-pa.googleapis.com/v1/models/gemini-3-flash-preview:streamGenerateContent?alt=sse:
[400 Bad Request]

Unable to submit request because Thinking_config.include_thoughts is only enabled when thinking is enabled.

What I’ve tested:

• Multiple Firebase Studio projects

• Different Google accounts

• Simple prompts such as “Hello”

• Browser refreshes

The issue occurs directly in the Firebase Studio AI chat panel, not inside my application code.

Is anyone else experiencing this issue?

[ardyonline]

@Starblack_Media

e else experiencing th

same here , dont know what to do next, i experience this sin yesterday

[Starblack_Media]

i see same errors on every of my firebase projects, with diff account. i think its a general bug thats yet to be fixed. it started since yesterday. this issue need to be looked into real quick.

[Oxon_World]

Same Here, I got same error.

It seems google shift from vertex ai to gemini enterprises api got the error or made Firebase studio as orphan as it is already announced to be subset.

[ShaneJ]

Same here. Also no longer can I commit to git and migrating my project to AI studio fails each attempt as well

[Starblack_Media]

oh really, what error you did u encounter when u tried to commit ?

[Fulllion]

Experiencing the issue myself, tried the same idea of switching accounts, /clear command on my history, the inline and ‘standard’ gemini side chat work when working in the code side, but the prototyper is just returning the error over and over. Have had the issue since about 12AM EST. I see firebase status has an issue posted but it’s an unresolved issue since Jul 17 2025 for “Creating and opening Android Studio workspaces is temporarily unavailable”?? Hope its fixed soon.

[Fernando_Rosa]

Hi to everyone! I started to face the same issue yesterday. I am working with Firebase Studio (Browser version). Trying to fix the error I discovered that in the genkit.ts file the model is ‘gemini-2.5-flash’, in the User Settings the ‘IDX AI: Gemini Model’ field is empty, and the error that I am facing mentioned ‘gemini-3-flash-preview’ ([GoogleGenerativeAI Error]: Error fetching from https://monospace-pa.googleapis.com/v1/models/gemini-3-flash-preview:streamGenerateContent?alt=sse: [400 Bad Request] Unable to submit request because Thinking_config.include_thoughts is only enabled when thinking is enabled.).

[Fernando_Rosa]

Same for me. I am still facing the issue with no solution…

[vikas_p]

Same here…anyone figured out a workaround, still issue…?

[vikas_p]

yes, I tried the same, migrating to AI studio, that failed too.

[Oxon_World]

This issue is google level not our side.

I assume, Google is switching or updating from vertex ai to gemini enterprises api. Thatsall, some changes in vertex ai done but google untouched Firebase studi

o.

[shoppoint.hk]

Same here, still facing the issue with no solution since yesterday…
Just checked @Status, it stated Service disruption
One or more services are experiencing a partial outage
&
Google AI Studio shows May 31, 2026
Partial outage impacting many AI Studio features
Detected Multiple AI Studio features are experiencing issues. Investigation is underway.

Is it nothing we can do & keep waiting until it fixed by google?

[Fulllion]

Updating from yesterday, still experiencing the same issue. Hopefully it gets fixed soon, biggest outage since I started using the service over a year ago. Can’t move projects to google AI studio either, real bummer. Guess we’ll just wait.

[ArtosTensei]

I think we just need to keep waiting, hope they will fix it today(

[Starblack_Media]

Workaround (Unofficial)

While waiting for Google to fix the Prototyper/Gemini chat issue, I’ve been able to continue working using the Code view Gemini assistant instead.

What worked for me:

1. Switch from Prototyper mode to Code mode.

2. Open the Gemini assistant in the code editor.

3. Start a New Chat (or New Classic Chat).

4. Sometimes it jumps back to a chat showing the error. If that happens, click the History/Clock icon and select the new chat you just created.

5. Ask Gemini to analyze the issue you’re facing (login problems, UI issues, broken functionality, etc.).

6. Ask Gemini which files are involved and need to be reviewed.

7. Copy Gemini’s analysis and the relevant file contents.

8. Paste them into another AI tool such as ChatGPT, Claude, or DeepSeek.

9. Use the suggestions to make the changes manually in Firebase Studio.

This doesn’t fix the underlying outage, but it has allowed me to keep building and debugging projects while the Prototyper chat remains unavailable.

If anyone else tries this, let me know whether it works for you too.

[Ishola_Emmanuel]

@kirupa any update or help you can offer on this?

[D11]

Outage at Google Studio was fixed hours ago but still no fix for Firebase Studio

[D11]

It finally works for me now!