Anthropic has released Claude Haiku 4.5, its latest AI model designed for high performance and faster speeds, in public preview on GitHub Copilot. This upgrade will be available to users with Pro+, Business, Enterprise, and Copilot Pro plans.
To access the new model, go to the Visual Studio Code chat or agent modes, as well as the GitHub website and mobile apps. However, note that the rollout will be gradual, so it may take some time to appear in your environment.
To use Claude Haiku 4.5, users on Business and Enterprise plans must enable the policy through Copilot settings, while those on Pro+ plans can select the model directly in Visual Studio Code. Alternatively, users with Bring Your Own Key (BYOK) can choose and enter their API key to access the model.
It’s recommended to use Visual Studio Code version 1.105 or higher for the best experience with this new model. For more information on available models and getting started with GitHub Copilot, visit the documentation. Users can also share their feedback and ask questions in the community discussion forum.
Source: https://github.blog/changelog/2025-10-15-anthropics-claude-haiku-4-5-is-in-public-preview-for-github-copilot