Starting June 1, 2026, Gemini 2.0 Flash and Gemini 2.0 Flash Lite will be fully discontinued in favor of our latest Gemini models. Requests to these models will begin to fail after this date. To avoid service disruptions, you must migrate your workloads to Gemini 3.1 Flash Lite model.
Move to Gemini 3.1 Flash Lite Preview by updating your application code to point to this new model.
Implement thought signature circulation: To maintain reasoning capabilities, you must capture the thought signatures from each response and include them in your follow-up request to the model, exactly as they were received. Refer to the Thought signatures guide for implementation details.
Starting June 1, 2026, Gemini 2.0 Flash and Gemini 2.0 Flash Lite will be fully discontinued in favor of our latest Gemini models. Requests to these models will begin to fail after this date. To avoid service disruptions, you must migrate your workloads to Gemini 3.1 Flash Lite model.
Move to Gemini 3.1 Flash Lite Preview by updating your application code to point to this new model.
Implement thought signature circulation: To maintain reasoning capabilities, you must capture the thought signatures from each response and include them in your follow-up request to the model, exactly as they were received. Refer to the Thought signatures guide for implementation details.