Build advanced reasoning agents with Gemini 3.1 Pro Preview, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support. Access Gemini 3.1 Pro Preview via the GitHub Copilot API with up to 64K output tokens.
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Gemini 3.1 Pro Preview by GitHub Copilot costs Free per 1M input tokens and Free per 1M output tokens.