GitHub Copilot to Deprecate Gemini 3.5/3.6 Flash, Kimi K2.7 Code, and Claude Opus 4.7 on October 2
GitHub announced that it will deprecate four more Copilot models effective October 2, 2026, continuing the model-lifecycle turnover that began with the September 1 deprecation batch.
Details
- Models being deprecated: Gemini 3.5 Flash and Gemini 3.6 Flash (both replaced by Gemini 3.8 Flash), Kimi K2.7 Code (replaced by Kimi K3), and Claude Opus 4.7 (replaced by Claude Opus 5)
- Scope: applies across all Copilot experiences, including Chat, inline edits, and code completions
- What to do: update workflows and integrations to use supported models before October 2; administrators can enable the replacement models through Copilot settings policies, after which they’ll appear in the model selector
- No cleanup needed: once the deprecation date passes, the old models are removed automatically with no further action required
What happened next
This is the second Copilot model deprecation round in barely a month, following the September 1 removal of Gemini 3.1 Pro, Claude Opus/Sonnet 4.5/4.6, and Raptor Mini — a pace reflecting how quickly Gemini 3.8 Flash and Claude Opus 5 have superseded their immediate predecessors.