GitHub is deprecating several AI models from Claude, OpenAI, and Gemini across all Copilot experiences on October 23, 2025. The deprecated models include Claude Sonnet 3.7, GPT o3/o1/o3/o4 mini variants, and Gemini 2.0 Flash, with newer alternatives like Claude Sonnet 4, GPT-5, and Gemini 2.5 Pro recommended as replacements. Users need to update workflows and integrations before the deprecation date, while Enterprise administrators may need to enable access to alternative models through policy settings.
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