Hi @laoli, We have recently rolled out a mandatory age verification initiative across signed-in customers globally, Accounts that have not completed explicit date-of-birth/identity verification should do so by navigating to [Google Account Age Verification](https://myaccount.google.com/age-verification) or verifying date of birth in [Google Account Personal Info](https://myaccount.google.com/personal-info)."
Also, disconnect any VPN, proxy, or iCloud Private Relay and access AI Studio directly.