Microsoft announced a significant update to its Copilot ecosystem on September 24, 2025: Anthropics Claude models are now integrated into Microsoft 365 Copilot. Users and developers now have the option to choose between OpenAIs models (GPT) and the latest versions of Anthropics models (Claude Sonnet 4 and Opus 4.1). This option is already available in the "Researcher" tool for complex analysis and in the Copilot Studio environment for creating custom AI agents. This move is part of Microsofts strategy to diversify and transform Copilot into a multi-model platform. By providing a choice, the company gives customers the flexibility to select the most suitable tool for a specific task and reduces its dependence on a single provider, OpenAI. This decision intensifies competition in the foundational model market and positions Copilot as a more open and versatile enterprise AI platform.
Microsoft Integrates Anthropics Claude Models into Microsoft 365 Copilot
