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GPT-5.6 is now the preferred model in Microsoft 365 Copilot
July 9, 2026
Microsoft 365 Copilot now uses GPT-5.6 as its preferred model across Word, Excel, PowerPoint, Chat, and Cowork. The switch is meant to deliver stronger AI capabilities for faster, higher-quality work, signaling a model upgrade across core Office productivity apps.
Learn how GPT-5.6 powers Microsoft 365 Copilot with stronger AI capabilities across Word, Excel, PowerPoint, Chat, and Cowork for faster, higher-quality work.
Source: openai.com