Claude Opus 5.5 is now available in GitHub Copilot

Anthropic's latest assistant model arrives inside an integrated development environment assistant. Users across enterprise and professional tiers can select the model for automated coding tasks. The platform roll out includes watermarking support and usage based billing under provider rates, with administrative controls for managing team access.

GitHub announced that Claude Opus 5.5 is now accessible through its development environment assistant. The rollout covers multiple platforms including Visual Studio Code, the command line interface, and mobile applications. Anthropic’s newest model supports agentic coding and knowledge work tasks. The initial release features a gradual deployment strategy for users. Early testing indicates the new model resolves tasks with comparable accuracy to its predecessor. It achieves this by utilizing significantly fewer steps and total tokens during execution. The system also demonstrates rapid recovery capabilities when encountering errors in complex workflows. This efficiency translates to lower computational usage for developers handling long-running projects. The text states that watermarked outputs remain readable without altering meaning or quality. However, the specific technical mechanisms behind this process are not detailed on this page. Provider list pricing applies to usage-based billing, yet exact cost figures are not provided locally. Access depends on the user’s subscription tier, with Enterprise and Business plans offering administrative controls for model enablement. Default settings typically activate new models unless administrators intervene.