Microsoft Build Launches MAI-Thinking-1 and In-House Model Family↗
Microsoft unveiled MAI-Thinking-1, a reasoning model, alongside the broader MAI family of proprietary models at Build 2025. This marks Microsoft's definitive shift from OpenAI's biggest reseller to an independent model builder. Joining Apple, Amazon Nova, and Meta Llama, the 'big-tech builds its own' camp is now a complete circle, further eroding the moat of pure-play model companies like Anthropic and OpenAI.
