Rohit Prasad, the executive who has led Amazon’s artificial intelligence initiatives and overseen the creation of its homegrown Nova AI models, is leaving the company at the end of the year. In a memo Wednesday morning,

Amazon is in talks to invest at least $10 billion in OpenAI, according to a report from The Information, in a deal that could push the value of the startup past $500 billion. Analysts say the deal looks like a marriage of necessity: OpenAI needs help funding its enormous burn rate,