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GPT-5.6 becomes default model for Microsoft 365 Copilot

Source: OpenAI News Source published: 09 Jul 2026 NadiAI generated: 10 Jul 2026

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Brief

Microsoft has adopted OpenAI’s GPT-5.6 as the preferred model powering Microsoft 365 Copilot across Word, Excel, PowerPoint, Chat, and Cowork. The upgrade is said to deliver stronger capabilities for faster, higher-quality document and chat assistance.

Why It Matters

Teams and individual users can expect improved productivity and AI-generated outputs across core Microsoft 365 apps.

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