A redesigned Microsoft 365 Copilot app on Windows PCs, Copilot Notebooks, and image generation features are starting to roll out to commercial customers.

The announcements point to the tech giant's broader strategy of equipping businesses and individuals with their own, custom-made AI systems.

Microsoft says that all of this tuning happens within the Microsoft 365 service environment. In simple terms, your data stays within your company’s secure Microsoft space, and Microsoft will not use it to train its own large language models.