Microsoft Builds Its Own Brain: MAI Thinking One and the In-House Models Loosening OpenAI's Grip - June 3, 2026

Microsoft Builds Its Own Brain: MAI Thinking One and the In-House Models Loosening OpenAI's Grip - June 3, 2026 At Build 2026, Microsoft unveiled seven in-house MAI models led by MAI Thinking One, its first homegrown reasoning model trained from scratch with no OpenAI data. Chris and Laura unpack the benchmarks, the Mixture of Experts architecture, and what owning its own frontier model means for Microsoft's complicated marriage with OpenAI. Hosted by Chris and Laura. The DX Today Podcast brings you daily deep dives into the most consequential stories in the AI ecosystem. Send us fan mail: https://dxtoday.com/contact #AI #Microsoft #OpenAI #MAImodels #GitHubCopilot