tier 1 user, testing official demo code in google colab, other models work fine, but gemini-3-pro-image-preview and gemini-3-pro-preview raised 503 error:
but the Gemini API Status shows today is working fine. (2025-12-15)
please help to check this, thanks!
Hi @Baoxin_Zhou,
Welcome to the Forum,
A 503 error (UNAVAILABLE) indicates that the service is temporarily overloaded or experiencing a capacity constraint. This is common during peak usage hours, particularly with long context requests.
The best immediate step is to wait a few minutes and try again . If you’re using code, implementing a retry with exponential backoff is the most robust way to handle this.
Thank you!
Thanks for your reply, it worked fine soon after I asked the question.
