Microsoft 365 Copilot Upgrades to GPT-5.6 for Enhanced Productivity

Microsoft has transitioned Microsoft 365 Copilot to GPT-5.6, delivering stronger AI capabilities across its productivity suite.

This article was drafted with AI assistance from multiple sources and was reviewed and approved by a human editor before publication.

Microsoft has updated its Microsoft 365 Copilot to use GPT-5.6 as the preferred model, according to a company announcement on July 9, 2026. The upgrade aims to enhance AI-powered assistance across applications including Word, Excel, PowerPoint, Chat, and Cowork.

The shift to GPT-5.6 is intended to enable faster and higher-quality work for users. The announcement highlights stronger AI capabilities that can improve tasks such as document creation, data analysis, presentations, and collaborative workflows.

This change follows Microsoft's ongoing integration of advanced language models into its productivity tools. The company did not disclose specific performance metrics but emphasized that the new model represents a step forward in AI-driven productivity.