Microsoft 365 Copilot Adopts GPT-5.6 Across 5 Apps as OpenAI Pushes Higher Output per Dollar
Updated
Updated · OpenAI · Jul 9
Microsoft 365 Copilot Adopts GPT-5.6 Across 5 Apps as OpenAI Pushes Higher Output per Dollar
3 articles · Updated · OpenAI · Jul 9
Summary
GPT-5.6 is now the preferred model in Microsoft 365 Copilot, replacing prior defaults across Word, Excel, PowerPoint, Chat and Cowork.
OpenAI said the flagship model delivers more useful work from every token, stronger performance per dollar and on-demand capacity for more complex tasks.
In those apps, the upgrade is aimed at cutting prompting and manual coordination while improving document drafting, data analysis, presentation creation and cross-functional collaboration.
Microsoft will access GPT-5.6 through the OpenAI API in addition to serving models natively, extending the companies’ long-running effort to embed advanced AI in everyday workplace software.
What specific tasks can GPT-5.6 now automate in Office apps that were previously impossible for AI assistants?
How will OpenAI licensing its models to rivals reshape Microsoft's dominance in the enterprise AI market?
Amidst a major lawsuit and new government oversight, is OpenAI's technological lead and massive valuation truly secure?
Microsoft 365 Copilot’s GPT-5.6 Upgrade: Enterprise AI Adoption Lags at 3.3% Despite $150B Investment
Overview
In July 2026, Microsoft 365 Copilot underwent a major transformation by integrating OpenAI’s advanced GPT-5.6 model. This pivotal upgrade greatly enhanced Copilot’s capabilities across the Microsoft 365 ecosystem, ushering in a new era of intelligent assistance and automation for businesses. GPT-5.6 is recognized for its powerful ability to understand, generate, and process complex information, which means Copilot can now better comprehend user requests and deliver more accurate, relevant results. While experts note the model’s potential risks, its integration marks a significant step forward in making daily workflows smarter and more efficient for enterprise users.