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

Today, OpenAI announced GPT‑5.6, which will become the new preferred model in Microsoft 365 Copilot—in Word, Excel, PowerPoint, Chat and Cowork. For Microsoft 365 customers, the update brings OpenAI's latest flagship model series at the time of this announcement into productivity tools people use every day, helping them create, analyze, and collaborate with more capable AI assistance across workstreams.

GPT‑5.6, OpenAI’s latest flagship model series at the time of this announcement, delivers more useful work from every token, with stronger performance per dollar and on demand capability for the most complex tasks. With GPT‑5.6, Microsoft 365 users will be able to create higher-quality work products with less effort across the apps they already rely on: In…