OpenAI CEO Sam Altman appeared in court on Tuesday , mounting a defense of his business practices amid a high-profile legal battle initiated by Elon Musk . The trial pits the artificial intelligence leader against the world's wealthiest man, who is seeking Altman's removal from the company's leadership. Musk alleges that Altman has betrayed their original shared vision for OpenAI. The lawsuit underscores the dramatic shift of OpenAI, which began as a non-profit organization primarily financed by Musk, into a formidable capitalistic venture now boasting an estimated value of $852 billion. As the proceedings enter their third week at a federal courthouse in Oakland, California, observers note that neither tech titan has emerged as a particularly sympathetic figure. However, the stakes are undeniably higher for Altman, who stands to lose the most.…