Elon Musk's lawsuit against OpenAI, led by CEO Sam Altman, centers on Musk's claims that the company is abandoning its nonprofit roots in favor of profit-making, particularly in light of a shift to for-profit status. Musk alleges that OpenAI and Microsoft are using his initial contributions unfairly against his rival AI firm, xAI. The case, stemming from a power struggle at OpenAI, is set for a federal hearing in January.