GitHub
2026-09-22
Claude Opus 5.5 is now available in GitHub Copilot. GitHub says it can be used for agentic coding, long-running agentic tasks, and knowledge work.
2026-08-14
Grok 4.6 is now rolling out in GitHub Copilot as a new reasoning model from xAI. GitHub says it is intended for agentic coding and complex multi-step workflows.