Expanded AI model support arrives in Microsoft 365 Copilot
Anthropic’s Claude models roll out to Copilot users, bringing choice, flexibility, and new research capabilities to Microsoft 365.
Microsoft is expanding the AI models powering Microsoft 365 Copilot by adding Anthropic’s Claude Sonnet 4 and Claude Opus 4.1. Customers can now choose between OpenAI and Anthropic models for research, deep reasoning, and agent building across Microsoft 365 tools.
The Researcher agent can now run on Anthropic’s Claude Opus 4.1, giving users a choice of models for in-depth analysis. The Researcher draws on web sources, trusted third-party data, and internal work content—encompassing emails, chats, meetings, and files—to deliver tailored, multistep reasoning.
Claude Sonnet 4 and Opus 4.1 are also available in Copilot Studio, enabling the creation of enterprise-grade agents with flexible model selection. Users can mix Anthropic, OpenAI, and Azure Model Catalogue models to power multi-agent workflows, automate tasks, and manage agents efficiently.
Claude in Researcher is rolling out today to Microsoft 365 Copilot-licensed customers through the Frontier Program. Customers can also use Claude models in Copilot Studio to build and orchestrate agents.
Microsoft says this launch is part of its strategy to bring the best AI innovation across the industry to Copilot. More Anthropic-powered features will roll out soon, strengthening Copilot’s role as a hub for enterprise AI and workflow transformation.
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