Commercial transition
Previous stateEligible Copilot users could select Gemini 2.5 Pro and Gemini 3 Flash.
→New stateBoth models are deprecated across Copilot experiences; GitHub points users toward Gemini 3.1 Pro Preview and Gemini 3.6 Flash, subject to model availability and enterprise policy.
Who is affected
GitHub Copilot users and administrators with workflows or policies using the deprecated Gemini models.
Action required
Select an available replacement, update model policy and preserve preview and plan boundaries.
Evidence boundary
The alternatives are not equivalent entitlement guarantees; administrators may need to enable them and preview status must remain explicit.
Timeline
- Models deprecated
GitHub announced the catalogue transition across Copilot experiences.
Official sources
- Gemini 2.5 Pro and Gemini 3 Flash deprecatedGitHub Changelog · 2026-07-31 · Official model-transition changelog