Manual billing sync request — Inactive or unsupported despite active billing account

Gemini API
1

Billing Account ID: 0150F9-D8F1CF-E5C4..

Project: Linkedin-Automation (gen-lang-client-08206410..)

Issue: AI Studio shows “The billing account type is inactive or unsupported” despite having an active Google Cloud billing account with $9.96 in prepaid credits. The Gemini API Billing page says “Free tier” and requires an active billing account to upgrade, but the billing account is already linked and funded.

Impact: Imagen 3/4 API calls fail with:
Imagen 3 is only available on paid plans. Please upgrade your account at https://ai.dev/projects.

Requesting a manual billing sync to move this project to Tier 1. Thank you.

Exact Error:

Imagen 4 failed (400):

{

“error”:

{

“code”: 400, “message”: “Imagen 3 is only available on paid plans. Please upgrade your account at https://ai.dev/projects.”, “status”: “INVALID_ARGUMENT”

}

}

2

Hello @Prayag-Verma ,

Note: There is no manual billing sync process at our end.

Our records indicate that your project was temporarily restricted to the free tier because the linked billing account was inactive when the request was submitted. Your billing account 0150F9-D8F1CF-E5... and project gen-lang-client-0820641... are now active on a paid tier with an available credit balance.

Next steps:

  • Retry your requests in Google AI Studio or through the Gemini API using an API key associated with project gen-lang-client-0820641....
  • You can monitor your active billing status and credit balance anytime at https://aistudio.google.com/billing.
  • If you still face issues, let us know.