
AI News Roundup: Major Breakthroughs, Bold Moves & New Rules (Sept 1–2, 2025)
Corporate Moves and New AI Tools Microsoft Debuts Homegrown AI Models After years of exclusively backing OpenAI’s models, Microsoft announced two powerful AI systems built in-house semafor.com. The first is MAI-1-preview, a text generative model intended to power future versions of Microsoft’s Copilot assistant