Lawyers for Elon Musk and OpenAI made their closing arguments in the blockbuster federal trial on Thursday. Nine jurors are set to begin deliberations next week.

World's richest man Elon Musk and OpenAI CEO Sam Altman have been putting up their legal dukes for weeks now (1), since April 27. At the core of the feud is Musk's belief that he's entitled (2) to a large portion of OpenAI's eye-watering valuation,

His Times colleague, Kevin Roose, said “the jackass trophy is lore among early OpenAI employees, not just because of how funny it is but because the guy who gave it to Josh — a safety exec named Dario — went on to do some other stuff in AI.”

Microsoft CTO Kevin Scott publicly addressed for the first time a 2018 email that Musk's lawyers have cited as evidence Microsoft knew OpenAI was abandoning its nonprofit mission. A confidential board memo filed in the case reveals how Microsoft's fear of falling behind Google drove the investment.

WSJ's Angel Au-Yeung has been reporting from the courthouse where OpenAI CEO Sam Altman took the stand Tuesday in the megatrial between him and billionaire Elon Musk.

Satya Nadella testified for roughly two and a half hours in the Musk v.

Shivon Zilis just became one of the most closely watched witnesses in Elon Musk’s legal war with OpenAI. The former OpenAI board member testified in federal court about her work, her loyalty and her private family connection to Musk.