Microsoft has spent years and more than $100 billion tied closely to OpenAI. Now the software giant moves to stand apart. The shift shows in new models, custom chips and a revised partnership that gives both sides room to breathe. At its Build conference this week in San Francisco, Microsoft plans to showcase a fresh lineup of homegrown AI systems. These include a new coding model set for release soon. The moves mark what The Information has called the company’s AI independence day. Executives want control over the stack that powers Azure and Copilot. They no longer wish to depend so heavily on one partner. But the relationship with OpenAI endures. In April the two companies amended their deal. Microsoft stays OpenAI’s primary cloud provider. OpenAI products ship first on Azure unless Microsoft opts out. The license for OpenAI’s models and products now runs non-exclusive through 2032. Microsoft no longer pays revenue share to OpenAI.…