No, Microsoft Is Not Breaking Up With OpenAI

The Copilot Cowork + Claude headlines are fun, but the boring plumbing matters more: OpenAI is still the default, Anthropic is now a peer, and Microsoft is locking in the orchestration layer!

Back in September 2025, I wrote a long essay called “Bringing All AI Models Under One Roof,” on the intelligent founder AI ( linked here 👇 ),

arguing that the real AI operating system wouldn’t be a single, blessed model. it would be the switchboard that quietly routes between all of them, behind the scenes. whoever owns the router between enterprise d…