Image: GitHub / github.blog GitHub Copilot Is Rotating Its Model Roster: Gemini Out July 31, Kimi K2.7 Now in Enterprise
Gemini 2.5 Pro and Gemini 3 Flash are being retired from all Copilot experiences on July 31. Kimi K2.7 Code, the first open-weight model in Copilot, is now available for Business and Enterprise plans.
Two model changes in GitHub Copilot are happening at the same time, both worth tracking if you use Copilot in any serious capacity.
Gemini 2.5 Pro and Gemini 3 Flash will stop working in all Copilot experiences on July 31. That’s ten days from now. And Kimi K2.7 Code, the first open-weight model ever added to Copilot’s model picker, is now available on Business and Enterprise plans.
The removals
GitHub announced the deprecation on July 2. Gemini 2.5 Pro and Gemini 3 Flash are being retired across every Copilot surface: chat, inline edits, code completions, ask mode, and agent mode.
The replacements are one tier up in Google’s lineup: Gemini 3.1 Pro replaces Gemini 2.5 Pro, and Gemini 3.5 Flash replaces Gemini 3 Flash. After July 31, requests using the deprecated models will fail, not silently fall back to the newer versions. You need to explicitly switch.
Enterprise administrators should check their model policies in Copilot settings to confirm the replacement models are enabled. Individual users can verify in their own Copilot settings.
The addition
Kimi K2.7 Code became generally available in Copilot for Pro, Pro+, and Max plans on July 1, then rolled out to Business and Enterprise on July 7. It’s the first open-weight model offered as a selectable option in Copilot’s model picker.
K2.7 is a mixture-of-experts model: 1 trillion total parameters, 32 billion active per token. GitHub hosts it on Microsoft Azure. On Business and Enterprise plans, it’s off by default and requires an administrator to enable it in model policy settings.
The significance of K2.7 in Copilot is mostly symbolic for now. It proves GitHub will host and serve models from outside the OpenAI, Anthropic, and Google ecosystem. That opens the door to a broader marketplace. Kimi K3, the newer and larger Moonshot model, topped Arena’s front-end coding leaderboard last week. Whether it lands in Copilot next is an open question.
What to do before July 31
If you have workflows, extensions, or integrations that explicitly specify gemini-2.5-pro or gemini-3-flash in GitHub Copilot, update them before July 31. The cutover is hard: the models disappear, not redirect.
Sources: GitHub Changelog — Gemini deprecation — GitHub Changelog — Kimi K2.7 for Business/Enterprise — GitHub Changelog — Kimi K2.7 GA