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Microsoft Copilot Blog
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More Models, One Copilot

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Xia_Song
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Sep 22, 2026
Anthropic's Claude Opus 5.5 and OpenAI's GPT-6 Sol are rolling out to Microsoft Copilot today across Word, Excel, PowerPoint, Chat, Cowork, and Copilot Studio.  Bringing Claude Opus 5.5 and GPT-6 S...
Updated Sep 22, 2026
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