Can't get gemini-2.5-flash-image-preview to work

[mikkelnl]

Hi all!

Still learning everything Librechat, so this might be a noob question...

I can use Google Gemini in my setup just fine, works great. However I'd like to try 'nano banana'. If I am correct, the endpoint is gemini-2.5-flash-image-preview... So, i added this to my .env file:

# Gemini API (AI Studio)
GOOGLE_MODELS=gemini-2.5-pro,gemini-2.5-flash,gemini-2.5-flash-image-preview

This gave an error in the chat:

Something went wrong. Here's the specific error message we encountered: An error occurred while processing the request: [GoogleGenerativeAI Error]: Error fetching from https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash-image-preview:streamGenerateContent?alt=sse: [400 Bad Request] Thinking is not enabled for models/gemini-2.5-flash-image-preview

I then opened the sidebar, and set Thinking Budget to 0 in the Parameters section.

Now it won't give an error, it'll give a friendly reply like "OK here is your update image."

But nothing happens...? What am I doing wrong here? :)

[m8500321]

+1

[398168441]

+1

[weber-cd]

I have the same problem too.

[andevariel]

The same issue. Thinking is not enabled for models/gemini-2.5-flash-image-preview
How to disable thinking for model in LibreChat?

[Romyadhy]

for real I have the same problem

[mateuszulewicz]

.... sss