AI Studio returns "Failed to list models: permission denied" — account entitlement issue?

My Google account consistently receives “Failed to list models: permission denied” in Google AI Studio.

Details:

  • Generative Language API is enabled and shows “Manage” in Cloud Console
  • I am Owner of the project (gen-lang-*)
  • MFA is enabled
  • Issue persists across multiple devices, browsers, and networks
  • Creating a new Cloud project does not resolve the issue
  • Same behavior occurred on a separate Google account after ~1 month of use

This appears to be an account-level AI Studio / Gemini model entitlement issue rather than a project configuration problem.

Has anyone else experienced this? Is there a path to restore AI Studio access without enabling billing?

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Update: Still experiencing this after 21 days. Issue persists across networks, devices, and fresh projects. Generative Language API shows ‘Manage’, IAM shows Owner. Happy to provide project ID or timestamps if helpful.

Hi

Apologies for the delay on this, can you provide me with your project ID ?

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Hi Mustan,
Thank you for looking into this.

Project ID: notional-analog-488606-s3

Important context:

  • This account does NOT have a gen-lang-client-* auto-project because AI Studio fails before project provisioning completes (shows “Failed to load projects list”)
  • I created this manual project myself to try to work around the issue
  • The Generative Language API is enabled and shows “Manage” in Cloud Console
  • I am Owner of the project
  • Error persists across devices, browsers, and networks

Previous account details (for reference):

  • Account: [redacted]
  • Project ID: gen-lang-client-0549340348
  • Project Number: 814275129281
  • Project Name: Gemini API
  • This account experienced the identical error pattern (“Failed to list models: permission denied”) and also cannot access AI Studio

If it is easier to investigate or restore access on the previous account with the gen-lang-client project, you are welcome to fix that one instead.

Let me know if you need further details or timestamps.
Thank you.