File - Arthur Mensch, cofounder and CEO of Mistral AI, attends the UK Artificial Intelligence (AI) Safety Summit in Bletchley, England on Nov. 2, 2023. The Competition and Markets Authority said it's looking into Microsoft's partnership with France's Mistral AI and the company's hiring of key staff from another startup, Inflection AI. (Toby Melville/Pool Photo via AP, File)