Gemini CLI 403 forbidden error

Hello,

I’m seeing an account-specific Gemini CLI issue.

My Google account signs in successfully through Gemini CLI using Google OAuth, and the CLI correctly shows my paid plan:
“Gemini Code Assist in Google One AI Ultra”

However, every prompt fails with:

  • HTTP 403 Forbidden

  • status: PERMISSION_DENIED

  • reason: forbidden

Diagnostic details:

Important troubleshooting detail:

  • Another Google account works on the same machine and same Gemini CLI installation.

  • That strongly suggests this is account-specific rather than a local install or network issue.

Please check whether this account has a broken Gemini CLI / Gemini Code Assist entitlement, backend provisioning issue, or incorrect internal project binding.

Thank you.

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