OpenAI trial live updates: Musk takes the stand again after heated cross-examination

What you need to know Elon Musk will take the stand for the third time on Thursday. Jared Birchall, who manages Musk's family office and is an executive at xAI and Neuralink, is also set to testify Thursday. Musk and OpenAI lawyer William Savitt sparred on Wednesday in a cross-examination that was heated. Musk said he lost trust in Sam Altman by late 2022, around the time of Microsoft's $10 billion investment in OpenAI, which was a tipping point. …