Microsoft Is Building Its Own AI Brain — And It’s Designing It to Replace the One OpenAI Gave It

Microsoft Is Building Its Own AI Brain — And It’s Designing It to Replace the One OpenAI Gave It

For years, Microsoft’s artificial intelligence strategy had a single nucleus: OpenAI. The Redmond giant poured billions into the San Francisco startup, embedded its models across products from Office to Azure, and staked its competitive future on a partnership that often looked more like a dependency. That era is ending. Microsoft is now aggressively developing its own family of AI models — internally branded MAI — that span text, voice, image g…