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Google Launches Gemini 3.5 Flash Officially

·2026.05.20 07:40

Key point

Google has officially launched Gemini 3.5 Flash, introducing a new Interactions API alongside a price increase.

Details

Google has released Gemini 3.5 Flash directly to general availability (GA) without going through a preview stage. The model is set to be applied across Google's major services, including the Gemini app, Google Search, developer platforms (Antigravity, AI Studio, Android Studio), and the enterprise-focused Gemini Enterprise.

Key technical specifications and features:

  • Knowledge cutoff: January 2025
  • Context window: Supports up to 1,048,576 input tokens and 65,536 output tokens
  • Interactions API (Beta): A new API introduced that supports server-side history management, similar to OpenAI's Responses pattern

Note: Compared to the previous Flash model series, the model usage price has been noticeably increased, so cost review is necessary during development and adoption.

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