Last week, Microsoft CEO Satya Nadella hosted an intimate, invite-only event for leaders from some of its key enterprise customers. Instead of a flashy media event, Nadella outlined the future of Copilot directly to the customers Microsoft really cares about, pitching its latest rethink of the AI assistant as the "OS for work."

Microsoft is adding coding and agent capabilities directly into Copilot, as well as bringing the full power of Office into Copilot for the first time. Nadella is betting that AI will change the way people work in the same way that Microsoft Office did in the '80s and '90s.

"How did a multinational company do a fore …