GPT-5.6 is now the preferred model in Microsoft 365 Copilot
OpenAI Blog · 2026-07-09
OpenAI announces that GPT-5.6 will become the preferred model powering Microsoft 365 Copilot across Word, Excel, PowerPoint, and Cowork, deepening the companies' AI partnership.
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Extraction
Topics: gpt-5.6enterprise-aiopenai-microsoft-partnershipmodel-deployment
Claims
- GPT-5.6 will replace the previous model as the default powering Microsoft 365 Copilot across Word, Excel, PowerPoint, Chat, and Cowork.
- Microsoft will access GPT-5.6 both natively and through the OpenAI API to serve Microsoft 365 customers.
- The integration is expected to reduce the manual prompting effort needed to produce polished outputs in productivity applications.
Key quotes
We can't wait for customers to see what GPT‑5.6 in Microsoft 365 will do, enabling them to work even more effectively with AI in the tools they use every day.
Microsoft 365 is where millions of people write, analyze, create, and collaborate every day. By bringing GPT‑5.6 to Microsoft 365 Copilot through the OpenAI API, we're helping organizations get more useful work from every token, and more value from AI in the tools they already use.