
Microsoft is bringing Anthropic’s Claude Sonnet 4 and Claude Opus 4.1 AI models to its Microsoft 365 Copilot today. It’s a large determination that expands exemplary prime beyond conscionable OpenAI’s scope of models successful Microsoft 365 Copilot, and it volition let Microsoft’s customers to entree Anthropic models successful Researcher and Microsoft Copilot Studio.
“Copilot volition proceed to beryllium powered by OpenAI’s latest models, and present our customers volition person the flexibility to usage Anthropic models excessively — starting successful Researcher oregon erstwhile gathering agents successful Microsoft Copilot Studio,” explains Charles Lamanna, president of Microsoft’s concern and manufacture Copilot team. “The summation of Claude Sonnet 4 and Claude Opus 4.1 advances our committedness to bring the champion AI innovation from crossed the manufacture to Microsoft 365 Copilot, tuned for enactment and tailored to your concern needs.”
Microsoft’s Researcher cause tin present usage OpenAI’s heavy reasoning models oregon Anthropic’s Claude Opus 4.1. Researcher users volition spot a “Try Claude” fastener astatine the apical of the Microsoft 365 Copilot app that provides entree to Opus 4.1 alternatively of OpenAI’s models. “Once you opt-in, you’ll beryllium capable to power betwixt OpenAI and Anthropic models successful Researcher with ease,” Lamanna says.

Claude Sonnet 4 and Claude Opus 4.1 volition besides beryllium disposable arsenic exemplary options successful Copilot Studio, Microsoft’s level for gathering AI agents. “With this launch, you tin build, orchestrate, and negociate agents powered by Anthropic models for heavy reasoning, workflow automation, and flexible agentic tasks,“ Lamanna explains. You’ll besides beryllium capable to premix which models are utilized for circumstantial tasks, with options from Anthropic, OpenAI, and different models successful Azure’s exemplary catalog.
Claude successful Researcher is rolling retired contiguous via the Frontier programme to Microsoft 365 Copilot licensed customers who determine to opt in. Copilot Studio users tin besides opt successful to get entree to Claude.
Interestingly, Anthropic’s AI models volition inactive beryllium hosted connected Amazon Web Services, Microsoft’s main unreality rival. Microsoft accesses Claude via the Anthropic API, conscionable similar immoderate different developer. Microsoft antecedently struck a woody with xAI to big Grok 3 models connected Azure, truthful I wouldn’t beryllium amazed to spot a akin statement with Anthropic’s models connected Azure soon.
Microsoft’s announcement of Anthropic models successful Microsoft 365 Copilot arrives conscionable a week aft the institution started favoring Anthropic implicit OpenAI for Visual Studio Code. GitHub Copilot paid users present “primarily trust connected Claude Sonnet 4” erstwhile utilizing the Visual Studio Code editor’s caller automatic AI exemplary selection.
Reports person besides suggested that Microsoft volition usage Anthropic’s AI models successful Excel and PowerPoint soon, aft uncovering they outperformed OpenAI’s ain models. “This is conscionable the opening — we’re committed to delivering exemplary innovation astatine speed,” Lamanna teases. “Stay tuned: Anthropic models volition bring adjacent much almighty experiences to Microsoft 365 Copilot.”