OpenAI faces talent exodus

CNBC's Kate Rooney breaks down executive turnover at OpenAI, especially Chief Revenue Officer Denise Dresser's departure. She details strong enterprise revenue momentum, sources on a roughly $40 billion annual run rate and July revenue growth, while noting investor nervousness around spending, competition, margins, and the company's confidential IPO filing. - Chief Revenue Officer Denise Dresser is leaving OpenAI after about nine months. - Several big names have left OpenAI this year for various reasons. - Sources say OpenAI is at around a $40 billion annual run rate. - Internal Slack messages reportedly showed revenue run rate up more than 20% month-over-month in July and business customers up 32%. - Investors were surprised by Dresser's sudden exit, but some see management volatility as baked in. - OpenAI has confidentially filed to go public and CFO Sarah Fryer is meeting investors. - Investors are on edge about spending, competition, and margins.