Tech article
Claude Opus 5.5 is now available in GitHub Copilot
Publisher description: Claude Opus 5.5, Anthropic’s newest Opus model, is now available in GitHub Copilot. You can use it for agentic coding, long-running agentic tasks, and knowledge work.
github | Sep 22, 2026 | Allison
Automated excerpt
Claude Opus 5. 5, Anthropic’s newest Opus model, is now available in GitHub Copilot. Claude Opus 5. 5 watermarks its text outputs. Copilot Enterprise and Copilot Business plan administrators can manage access to Claude Opus 5. 5 through the model policy in Copilot settings.
Selected automatically from source text; not independently written or fact-checked. Read the original for full context.