Which GitHub Copilot models are being deprecated?

Gemini 3.5 Flash, Gemini 3.6 Flash, Kimi K2.7 Code, and Claude Opus 4.7 are deprecated across all GitHub Copilot experiences on October 2, 2026.

What should builders use instead of deprecated Copilot models?

GitHub suggests Gemini 3.8 Flash for the Gemini models, Kimi K3 for Kimi K2.7 Code, and Claude Opus 5 for Claude Opus 4.7. Copilot Enterprise and Business admins may need to enable alternatives in model policies.

When do the Copilot model deprecations take effect?

All four models stop working on October 2, 2026. Workflows and integrations referencing them should be updated before that date.

GitHub Copilot Deprecates Gemini 3.5 Flash, Gemini 3.6 Flash, Kimi K2.7 Code, and Claude Opus 4.7

What shipped

GitHub announced deprecations for four Copilot models — Gemini 3.5 Flash, Gemini 3.6 Flash, Kimi K2.7 Code, and Claude Opus 4.7 — across every Copilot experience (Chat, inline edits, ask and agent modes, code completions).

What changed

All four models are removed on October 2, 2026. Suggested replacements: Gemini 3.8 Flash (for both Gemini models), Kimi K3, and Claude Opus 5. No action is needed to remove models after deprecation — but admins on Copilot Business and Enterprise may need to enable the alternatives in their model policies, and pinned prompts/configs referencing deprecated IDs will fail after the date.

Why a builder cares

Roughly a month of runway to update workflow files, automation, and any hardcoded model references — teams that wait past October 2 get errors instead of deprecation warnings.

What shipped

What changed

Why a builder cares

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