Microsoft Copilot for Microsoft 365 - your copilot for work. Copilot combines the power of large language models (LLMs) with your content in the Microsoft Graph and the Microsoft 365 apps to turn your words into the most powerful productivity tool on the planet. This premium add-on includes Copilot in your Microsoft 365 apps (Word, Outlook, Excel, PowerPoint, Teams, and more) and Graph grounding for your Microsoft Copilot experience.