Hello,
I am experiencing a 401 error when opening the Preview of my Google AI Studio projects.
The error shown is:
- This is an error.
The request is invalid and cannot be processed by the server.
It should not be retried. That’s all we know.
The important detail is that this is not limited to one project.
I tested multiple existing Google AI Studio projects, and the Preview produces the same 401 error across all of them.
These projects were working previously.
This makes me suspect that the problem may be related to the AI Studio Preview/runtime authentication or infrastructure rather than the code of an individual project.
Could someone from the Google AI Studio team please confirm whether there is currently a known issue affecting Preview authentication?
Environment:
- Google AI Studio
- Preview
- iPhone / Safari
- Date: September 17, 2026
- Issue affects multiple projects
I can provide screenshots or additional information if needed.
Thank you.