Microsoft Now Supports Claude Across Its Copilot Apps

Microsoft is expanding backing for Anthropic's Claude models throughout Microsoft 365 Copilot, giving users more alternatives to OpenAI's GPT models inside its productivity apps.

Key points

• Microsoft is now rolling out Claude Opus 5 through the model selector in Word, Excel, PowerPoint, Copilot Chat, Copilot Cowork, and Copilot Studio.
• Add ProPakistani to Preferred Sources and see more of our stories in Google Search and Top Stories.
• More Than One Third of Websites Online Are Now Written by AI.
• Microsoft first continued Anthropic models to Copilot in September 2025.
• Copilot Studio allows businesses to build AI agents powered by Claude Opus 5 for reasoning, workflow automation, and multi-step tasks.

Microsoft first continued Anthropic models to Copilot in September 2025. While Claude Opus 4.1 and Sonnet 4 were continued to Copilot Studio, at the time, Claude Opus 4.1 became available in the Researcher agent. The integration has since expanded significantly.

More Than One Third of Websites Online Are Now Written by AI. Claude Opus 5 Comes to More Microsoft 365 Apps.

In Copilot Chat, Microsoft notes Opus 5 is suited to open-ended difficulties, planning, comparing different options, and other tasks that require stronger reasoning.

Copilot Cowork can employ the model for longer-running projects involving multiple files and tools.

Meanwhile, Copilot Studio allows businesses to build AI agents powered by Claude Opus 5 for reasoning, workflow automation, and multi-step tasks. OpenAI Slashes GPT-5.6 Sol API Rates for Three Months. Microsoft Is Expanding Its Multi-Model Strategy. The move reflects Microsoft's growing multi-model approach to Copilot.

Microsoft continues to offer OpenAI models throughout its AI products. GPT-5.6 was continued to Microsoft 365 Copilot in July 2026, but users increasingly have the option to choose different models depending on the task.

Microsoft's Researcher agent additionally supports both GPT and Claude models. Administrators can enable Anthropic models, allowing users to select Claude for complex research involving the web as well as their organization's files, emails, meetings, and chats.

For context, the expansion gives Microsoft 365 Copilot users more flexibility while reducing the platform's dependence on a single AI provider. Stay Connected with ProPakistani.

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In short, microsoft Now Supports Claude Across Its Copilot Apps is the central thread here, and readers can expect follow-up reporting as the picture becomes clearer.