Arguments in the trial over Elon Musk's lawsuit against OpenAI and CEO Sam Altman for becoming a for-profit company begin in California on Tuesday.

Musk v. Altman puts OpenAI’s $130 billion foundation, Microsoft partnership and nonprofit mission on trial as IPO questions loom.

Musk’s lawsuit accuses Altman of fraud, while OpenAI says that Musk is ‘motivated by jealousy’