Microsoft unveils advanced reasoning AI model

Microsoft has introduced MAI-Thinking-1, its new flagship in-house AI model, marking a significant step in its AI development journey. This medium-sized model reportedly matches leading AI systems on key software engineering benchmarks, trained from scratch on proprietary data. This development comes as Microsoft renegotiates its AI partnership with OpenAI, indicating a strategic shift towards greater self-reliance in AI model creation. The company also announced other AI models at its Build 2026 conference, further expanding its AI portfolio.