I am experiencing an immediate HTTP 429 Quota Exceeded error when making API calls to gemini-2.5-flash, even though my Quota for this model is confirmed to be 10,000 requests per minute (RPM) in the Quota dashboard. I have confirmed that billing is active and I have created multiple new API keys. This appears to be a backend synchronization issue where my API key is not inheriting the upgraded Quota
Hi @Minh_Dao_Cong,
Welcome to the Google AI Forum! 
The recent issues affecting AI studio and Gemini API have been resolved, and all systems are operational again. We apologize for the inconvenience and disruption this may have caused to your applications and workflows. Please let us know if you continue to face any issues.