From the source
Google DeepMind has deprecated Gemini 3.7 Flash and replaced it with Gemini 3.8 Flash, making the older model no longer selectable in Google AI Studio.
- API requests to the deprecated model are automatically routed to the new version.
- The company advises developers to update their model string to gemini-3.8-flash and consult the Gemini 3.8 Flash guide.




