Claude Sonnet 4.6 Rolls Out to GitHub Copilot With Improved Agentic Coding Skills

Anthropic’s Claude Sonnet 4.6 is officially rolling out inside GitHub Copilot. The rollout marks yet another expansion of model choice within Copilot, as GitHub continues to integrate third-party AI models for developers alongside its default offerings.

In the announcement, Anthropic called Claude Sonnet 4.6 its most capable Sonnet model yet. The company further lauded its improved performance in agentic coding tasks and search-heavy skills.

In a real-world scenario, the model can better navigate large codebases, pull relevant context, and execute multi-step coding tasks without many hiccups. That said, the model launches with a 1x premium request multiplier, with GitHub noting that pricing remains tentative and could change.

Claude Sonnet 4.6 will be available to Copilot Pro, Pro+, Business, and Enterprise subscribers. Users can select the model through the model picker across multiple environments, including Visual Studio Code (chat, ask, edit, and agent modes), Visual Studio (agent and ask modes), GitHub.com, GitHub Mobile on iOS and Android, the Copilot CLI, and the Copilot Coding Agent.

The model is rolling out gradually. which means some users may not see Claude Sonnet 4.6 in their options immediately. If you’re Enterprise and Business administrators, make sure to manually enable the Claude Sonnet 4.6 policy in Copilot settings before teams can access it. With Anthropic’s latest Sonnet model now in the mix, rivalry among coding assistants is highly likely to intensify.