GPT-5.6 is now the preferred model in Microsoft 365 Copilot

OpenAI
OpenAI has integrated its new flagship model, GPT-5.6, into Microsoft 365 Copilot to enhance productivity across Word, Excel, PowerPoint, and Cowork.

Summary

OpenAI has announced the integration of its latest flagship model, GPT-5.6, as the preferred engine for Microsoft 365 Copilot. This update affects core applications including Word, Excel, PowerPoint, Chat, and Cowork, aiming to provide users with stronger performance and higher-quality work products with reduced manual effort.

The integration leverages the OpenAI API to deliver more efficient token usage and improved analytical capabilities. According to leadership from both Microsoft and OpenAI, this collaboration is designed to help users streamline complex tasks, refine documents, perform deeper data analysis, and improve team collaboration through more capable AI assistance.

(Source:OpenAI)