Gemini API 503 (UNAVAILABLE)
Is there an outage right now?
Gemini API / AI Studio official status is operational. If this error persists, it is likely an implementation or environment issue on your side.
View Gemini API / AI Studio status →What this error means
503 means the service is temporarily unavailable: overload, model capacity, or outage.
Common causes
- •Overload from demand
- •Model capacity pressure
- •Partial outage/maintenance
- •Region issues
How to fix
- 1.Retry with exponential backoff
- 2.Wait a while
- 3.Try another model/region
- 4.Check this page and Google Cloud status
When waiting helps (and when it won't)
Usually recovers over time if overload/outage-related. Space out retries.
Alternatives when Gemini API / AI Studio is down
Related errors
FAQ
What is 503 UNAVAILABLE?
503 means the service is temporarily unavailable: overload, model capacity, or outage.
How do I fix 503 UNAVAILABLE?
Retry with exponential backoff / Wait a while / Try another model/region / Check this page and Google Cloud status