GitHub Copilot gains Claude Opus 5.5, GPT-6 Sol and Luna, and Grok 4.7
GitHub
GitHub's changelog (Sep 21-22) records Copilot availability of Claude Opus 5.5, OpenAI's GPT-6 Sol and GPT-6 Luna, and Grok 4.7 — three frontier models added within two days. Separate entries cover Copilot for JetBrains improvements and faster C++ code intelligence via whole-codebase indexing.
Why it matters
Model choice inside Copilot now spans Anthropic, OpenAI and xAI flagships simultaneously, accelerating the multi-vendor default in enterprise IDEs.
Importance: 2/5
Platform availability update, confirmed by the official changelog