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Starting today, Anthropic’s Claude Sonnet 5 is available in Microsoft 365 Copilot—a new frontier model rolling out in Copilot Cowork and PowerPoint, built for agentic, multi-step work across everyday work: documents, spreadsheets, and presentation tasks.  

Anthropic describes Sonnet 5 as a more capable agentic Sonnet model, with performance close to that of Opus 4.8, but at lower prices¹ —bringing another capable option to Copilot for work that requires planning across steps, reasoning through context, and turning information into polished business artifacts.

Sonnet 5 joins a growing lineup of frontier models in Microsoft 365 Copilot, giving users the flexibility to choose the right model for their tasks, tuned for work and tailored to business needs, with the security, compliance, and privacy that you expect from Microsoft.

When combined with Work IQ, Copilot plans, builds, and creates artifacts grounded in the files, meetings, chats, and business data of your work. 

Get started today 

Claude Sonnet 5 is now rolling out to Copilot Cowork and Copilot in PowerPoint. Admins can manage access to Claude Sonnet 5 based on their organization’s policies and readiness. 

Availability may vary by region and tenant configuration; refer to the Microsoft 365 Roadmap and the Microsoft 365 Copilot release notes for the latest rollout status.  

¹ For more details on the model, see Anthropic’s announcement of Claude Sonnet 5.