Unable to sign in: account is ineligible to use Antigravity after age verification

Hello Google Antigravity team,

I am unable to sign in to Google Antigravity. When I try to log in, I receive this error message:

“Sorry, this account is ineligible to use Antigravity. Authentication failed.”

I have already completed the Google age verification process with my Google account, but the issue still remains.

My account is a personal Google account, not a school or company Workspace account.

Could you please help me check why my account is considered ineligible? I would like to know whether this is related to age verification, regional availability, account status, Google One / AI plan eligibility, or another restriction.

Environment:

  • OS: macOS
  • Product: Google Antigravity
  • Account type: Personal Google account
  • Error: “Sorry, this account is ineligible to use Antigravity. Authentication failed.”

I can provide screenshots if needed.

Thank you.