The Windsurf acquisition and future of Copilot are at the center of a growing rift between the longtime AI collaborators.

Microsoft and OpenAI are engaged in tense negotiations that could unravel one of the most important alliances in AI and fundamentally reorder the industry. Why it matters: Microsoft has injected billions of dollars in OpenAI and made it a cornerstone of its AI strategy,

At the heart of the dispute is OpenAI's desire to restructure to a for-profit business, a move that requires Microsoft's approval.