Reinforcement Learning fine-tuning is available for Gemini 3.5 Flash in Public Preview

Reinforcement Learning fine-tuning is available for Gemini 3.5 Flash in Public Preview

Reinforcement Learning fine-tuning is now available for the gemini-3.5-flash models in Preview. Model tuning for Gemini 3.5 Flash is restricted to us-central1 and europe-west4, and tuned model serving is restricted to the us and eu multi-region endpoints.

See About reinforcement learning fine-tuning for more information.