403 PERMISSION_DENIED: "Your project has been denied access" — Project 5346614112

Gemini API
1

Hello Gemini API Team / DevRel,

I am requesting a manual account-level review for my project. Every API call to generateContent for gemini-2.5-flash is failing with:

403 PERMISSION_DENIED: "Your project has been denied access. Please contact support."

Project Details:

  • Affected Google Cloud Project Number: 5346614112..
  • Model Failing: gemini-2.5-flash (POST /v1beta/models/gemini-2.5-flash:generateContent)
  • Use Case: Private internal automation for comment moderation / draft reply suggestions (LAB.LTD Social Radar). No auto-posting, low volume.

Diagnostic Pass & What Has Been Ruled Out:

  1. Isolated from code: Tested via raw curl / HTTP requests completely outside our codebase.
  2. Metadata endpoints work (200 OK): GET /v1beta/models and GET /v1beta/models/gemini-2.5-flash both return HTTP 200 OK with full model metadata using the same API key.
  3. Model asymmetry: Calling gemini-2.5-pro with the same key returns a standard 429 RESOURCE_EXHAUSTED (free-tier limit reached) with full quota detail objects, proving the key and auth pipeline work normally.
  4. Network/IP independent: Reproduced identically from local machine, GitHub Actions runners, and a separate cloud sandbox.
  5. No visible UI banners: Checked Google AI Studio (“Projects” / “Plan & Billing”) and GCP Console — there are no warning callouts, banners, or account verification popups visible.

This behavior points to an automated identity/account-level risk flag blocking generateContent execution across projects under this Google account.

Could a member of the team please manually inspect project 5346614112.. and restore access? Happy to provide any additional verification if needed.

Thank you!