Microsoft Breaks with OpenAI, Bets Big on an In-House AI Push

At Microsoft’s Build conference, the company signaled a major shift toward an in‑house AI stack, unveiling MAI-Thinking-1—its first scratch‑built reasoning model—along with a Copilot‑style super app and enterprise Autopilots, an AI cybersecurity tool called MDASH, and OpenClaw integration. After renegotiating its OpenAI deal to train models at scale with Microsoft data and IP, Microsoft aims to become one of the top AI labs and win enterprise markets, though questions remain about real‑world adoption and the viability of AI agents.