You can use it for agentic coding, long-running agentic tasks, and knowledge work.

In early testing, Opus 5.5 resolved tasks comparably to Claude Opus 5 while using significantly fewer steps and tokens.

It also quickly recovered from errors in multistep tasks.

Claude Opus 5.5 watermarks its text outputs.

The watermark doesn’t change the meaning, quality, or readability of outputs, nor does it add any tokens or cost.

To learn more visit Anthropics’s How Claude’s text watermark works .

This model is billed at provider list pricing under usage-based billing.

See Models and pricing for GitHub Copilot for details.

Claude Opus 5.5 is available to Copilot Pro+, Max, Business, and Enterprise users.

You can select the model in the model picker in: Visual Studio Code Visual Studio Copilot CLI GitHub Copilot coding agent GitHub Copilot app github.com GitHub Mobile on iOS and Android JetBrains IDEs Xcode Eclipse Rollout will be gradual.

Check back soon if you don’t see it yet.

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