Claude Fable 5.2, the latest version of Anthropic’s Fable model, is now rolling out in Copilot Cowork and Copilot Studio. It expands the choice of frontier models in Copilot, so your teams can match the model to the work as they hand more complex tasks to AI.
A model is only as useful as the context it works with. In Copilot, Work IQ grounds Fable 5.2 in your organization’s files, meetings, chats, and business data—within your existing permissions—so responses reflect your actual work rather than the prompt alone. That makes answers more accurate and easier to trust, with sources you can follow back and verify before you rely on them.
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Fable 5.2 is now rolling out to eligible users in Copilot Cowork and Copilot Studio.
Admins stay in control: they can manage access and set availability for their organization in the Microsoft 365 admin center. Availability may vary by region and organization.
You can follow the rollout on the AI at Work Roadmap and in the Microsoft 365 Copilot release notes.
For details on the model itself, read Anthropic’s announcement of Claude Fable 5.2.
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