GPT-5.6 becomes preferred model in Microsoft 365 Copilot

OpenAI announced GPT-5.6 as the new preferred model for Microsoft 365 Copilot, integrating its latest flagship series into Word, Excel, PowerPoint, Chat, and Cowork.

• In Word, users can draft, edit, and refine documents with fewer prompting rounds.
• Excel supports deeper analysis with more efficient token usage to accelerate insights.
• PowerPoint helps convert early ideas into polished presentations with less manual guidance.
• Cowork assists with complex cross-functional work and higher-quality outputs.

Microsoft and OpenAI aim to help organizations get more useful work from every token, enabling customers to produce more polished outputs across their daily productivity tools.