Copilot’s advanced model, Claude Sonnet 4.5, is now available for public preview. This update brings enhanced capabilities across multiple platforms, including GitHub Copilot Pro, Visual Studio, and JetBrains IDEs.
To access the updated model, you can use the chat model picker in GitHub Copilot Chat or other supported tools like Visual Studio Code. If you haven’t received access yet, check back later.
For organizations using Copilot Business or Enterprise plans, administrators must enable the Claude Sonnet 4.5 policy to make it available for users. To learn more about Copilot models, visit the documentation page. Share your feedback with the community to help improve the tool.
Source: https://github.blog/changelog/2025-10-02-claude-sonnet-4-5-is-now-available-in-visual-studio-jetbrains-ides-xcode-and-eclipse