Elon Musk takes the stand in high-profile trial against OpenAI

Elon Musk testified in a trial against OpenAI CEO Sam Altman and company president Greg Brockman, founders of OpenAI alongside Musk. The dispute stems from disagreements over OpenAI's mission and structure, including whether it should merge with Tesla, leading Musk to establish xAI as a competitor. Musk has filed four lawsuits against OpenAI in recent years.