Claude Fable 5.2 in GitHub Copilot

Claude Fable 5.2 is now generally available in GitHub Copilot. It's Anthropic's newest Fable model. GitHub says it's meant for complex, multistep coding tasks across large codebases. In GitHub's early testing, it solved more tasks than Claude Fable 5.1 using fewer steps and tool calls, and it finished some hard tasks that earlier models missed.

It's available on Copilot Pro+, Max, Business, and Enterprise. You pick it from the model picker in VS Code, Visual Studio, Copilot CLI, the Copilot coding agent, the GitHub Copilot app, github.com, GitHub Mobile, JetBrains IDEs, Xcode, and Eclipse. Rollout is gradual, so it may not show up for you yet.

Business and Enterprise admins have to turn on the Claude Fable 5.2 policy in Copilot settings. It's off by default, and leaving it off keeps the model unavailable to the organization.

Fable 5.2 requires data retention by default. Anthropic keeps prompts and outputs to run its safety classifiers, and says that data isn't used to train its models. Eligible enterprise customers can use it with zero data retention through the end of the calendar year, under a time-bound exemption. After that, continued use requires Anthropic's Enterprise Frontier Safeguards.

The model is billed at provider list pricing under usage-based billing. See Models and pricing for GitHub Copilot for how credits work.