Elon Musk’s artificial intelligence startup xAI is raising more financing than initially planned, tapping backers including Nvidia Corp. to lift its ongoing funding round to $20 billion, according to people with knowledge of the matter. Nvidia's CEO Jensen In an interview with CNBC Wednesday, Nvidia’s CEO Jensen Huang said when asked about Bloomberg’s reporting that the only regret he has about xAI and Musk is that he “didn’t give him more money.” Bloomberg's Ed Ludlow reports on "Bloomberg Surveillance." (Source: Bloomberg)