(FILES) OpenAI CEO Sam Altman speaks during the Microsoft Build conference at the Seattle Convention Center Summit Building in Seattle, Washington on May 21, 2024. OpenAI, the maker of ChatGPT, has closed a massive funding round, an investor said on October 2, 2024, as the company led by Sam Altman seals its place as the world leader on artificial intelligence. Venture capital firm Thrive Capital, the leading investor in the new round, confirmed a report by CNBC which said that the round raised $6.5 billion, lifting OpenAI to a $150 billion valuation. (Photo by Jason Redmond / AFP) (Photo by JASON REDMOND/AFP via Getty Images)