gemini-3-pro-preview : permanent error "Model call failed: {"message":"invalid request body","code":"invalid_request_body"} (Request ID: 5BB8:204F31:213B66C:27B31B1:.......)"

[XavierGaronnat]

Describe the bug

Model gemini-3-pro-preview is not working anymore this morning...

Affected version

0.0.369 Commit: 83653a1

Steps to reproduce the behavior

1. Execute /model : Choose gemini-3-pro-preview
2. Run "say hello world in python" (or whatever)

Expected behavior

An answer from the model

Additional context

No response

[williammartin]

Hey, can you provide the log file for one of these failures, when you start copilot with --log-level all. You can find the session ID in /session and the log most likely in ~/.copilot/logs/<sessionid>.log.

I can't reproduce this right now:

[andyfeller]

@XavierGaronnat : I'm not sure if you've run into this issue since the initial report. I'm going to close this issue as Gemini Pro 3 having been recently deprecated and the staleness of this issue.

If you upgrade to a newer version and this still persists, please leave a comment so we can resolve this. 🙇