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Microsoft 365 Copilot Adds Two Anthropic AI Models, Giving Users a Choice
Microsoft expands AI options in Microsoft 365 Copilot by integrating Anthropic's Claude models, offering corporate users more choices alongside OpenAI's technology.
On September 24, 2025, Microsoft revealed that it is integrating two advanced AI models developed by Anthropic—Claude Sonnet version 4 and Claude Opus version 4.1—into its Microsoft 365 Copilot platform in Redmond, Washington.
The move follows Microsoft's longstanding partnership with OpenAI and reflects efforts to diversify AI integrations amid competition between OpenAI and Anthropic in AI products.
Anthropic models are available first in the Researcher agent and Copilot Studio, giving customers flexibility to use Claude models alongside OpenAI's latest models.
Charles Lamanna explained that Copilot will keep utilizing OpenAI’s most advanced models, while also allowing customers the option to incorporate Anthropic’s models, reflecting a phased introduction and support for multiple AI providers.
This addition signals Microsoft's commitment to offering diverse AI solutions tailored for business, potentially enhancing Copilot’s capabilities and indicating a shift toward multi-vendor AI integration.
Microsoft and OpenAI are no longer exclusive, and this is evident once again. Redmond's company has just announced that from today on, Claude's most advanced versions...