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Gemini 3.5 Flash Powers GitHub Copilot
20 May
Summary
- Gemini 3.5 Flash is now available in GitHub Copilot.
- It offers fast response times and efficient tool use.
- Benchmarks show mixed results compared to GPT-5.5.

Google AI's Gemini 3.5 Flash has officially rolled out and is now accessible within GitHub Copilot. This advanced AI model is engineered for speed and efficiency, showcasing impressive capabilities in tool utilization and rapid response generation. Its design makes it particularly suitable for fast-paced, iterative coding tasks.
Initial benchmarks from Artificial Analysis AI provide a detailed performance overview. While Gemini 3.5 Flash demonstrates excellent scores in areas like APEX-Agents-AA and strong reasoning efficiency, its price-performance ratio appears less competitive when compared to alternatives such as GPT-5.5. Users can reportedly achieve superior performance with faster responses at a lower cost using GPT-5.5-medium.