OAKLAND, California : OpenAI and Elon Musk have agreed to fast-track a trial over OpenAI's for-profit shift, the latest turn in a grudge match between the world's richest person and OpenAI CEO Sam Altman playing out publicly in court. Billionaire Elon Musk and OpenAI jointly proposed a trial in December, according to a federal court filing on Friday. The parties agreed to delay a decision on whether the expedited case will be decided by a jury or solely by the judge, said the filing in U.S.