Gemini 2.5 Pro and Gemini 3 Flash deprecated

GitHub deprecated Gemini 2.5 Pro and Gemini 3 Flash models across all Copilot experiences, effective July 31, 2026, recommending Gemini 3.1 Pro and Gemini 3.6 Flash as alternatives.

From the source
we have deprecated the following models across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions).
github.blog

Visit source ↗github.blog

Announced: 31 Jul 2026 20:04 UTC
Detected: 03 Aug 2026 21:12 UTC (+3d after)

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