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3d ago

Microsoft Brings Anthropic’s Claude to Microsoft 365 Copilot and Copilot Studio

The move formalizes a multi‑model strategy that puts model choice under admin control with OpenAI remaining the default.

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A view shows a Microsoft logo at Microsoft offices in Issy-les-Moulineaux near Paris, France, March 21, 2025. REUTERS/Gonzalo Fuentes/File Photo
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Overview

  • Claude Sonnet 4 and Claude Opus 4.1 start rolling out now in early release environments, with preview in two weeks and production readiness by year‑end.
  • Researcher gains a Try Claude option that lets licensed Copilot users switch to Claude Opus 4.1 for deep‑reasoning tasks.
  • Copilot Studio adds Claude Sonnet 4 and Opus 4.1 as selectable models so builders can mix models per task through the model picker.
  • Tenant administrators must opt in via the Microsoft 365 Admin Center, with additional controls in the Power Platform Admin Center.
  • Agents using Anthropic will automatically fall back to OpenAI GPT‑4o if disabled, and Microsoft accesses Claude via Anthropic’s API while the models remain hosted on AWS.