Microsoft Hires Sam Altman and OpenAI's new CEO Vows to Investigate His Firing

File - Sam Altman participates in a discussion during the Asia-Pacific Economic Cooperation (APEC) CEO Summit, Nov. 16, 2023, in San Francisco.

Microsoft snapped up Sam Altman and another architect of OpenAI for a new venture after their sudden departures shocked the artificial intelligence world, leaving the newly installed CEO of the ChatGPT maker to paper over tensions by vowing to investigate Altman's firing.