Microsoft 365 Copilot switches to latest GPT model
OpenAI has announced that a newer GPT model is now the standard for Microsoft 365 Copilot across applications including Word, Excel, and PowerPoint.
What happened?
OpenAI has announced that GPT-5.6 is the standard model in Microsoft 365 Copilot. This model is integrated into applications such as Word, Excel, PowerPoint, Chat, and Cowork. Microsoft utilizes the model both through direct integration and OpenAI's API.
Key facts
”OpenAI announced Thursday that GPT-5.6 is now the preferred model in Microsoft 365 Copilot, spanning Word, Excel, PowerPoint, Chat, and Cowork.”
”OpenAI says GPT-5.6 delivers stronger performance per dollar with on-demand capability for the most complex tasks.”
”GPT-5.6 was restricted to trusted partners under government review just weeks ago. Seeing it now deployed across Word, Excel, and PowerPoint for everyday Microsoft 365 users is a real signal of how quickly that access has widened.”
Why it matters
GPT-5.6 is reported to offer superior performance per cost and more efficient handling of complex tasks. For users, this potentially results in fewer interactions to achieve desired outcomes in document drafts, more efficient data analysis in Excel, and smoother presentation creation.
Who is affected?
Users of Microsoft 365 Copilot in applications like Word, Excel, and PowerPoint are affected. This includes both individual users and organizations relying on these tools for productivity. Developers building integrations for Microsoft 365 Copilot may also observe changes in the model's behavior.
What else you should know
Previously, GPT-5.6 was only available to selected partners under government review, indicating a rapid expansion of its availability.
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