Elon Musk's lawsuit against Sam Altman and OpenAI goes to trial on Monday, with a jury tasked to determine whether Altman deceived Musk about for-profit plans for OpenAI. Musk alleges that Altman and OpenAI President Greg Brockman circumvented him to build a for-profit arm that partnered with Microsoft, creating a "for-profit, market-paralyzing gorgon" that became a "subsidiary of Microsoft" on the back of Musk's generosity, including about $40 million in contributions. OpenAI counters that Musk is jealous because his own company, xAI, lags far behind, and that Musk had agreed a for-profit arm was needed to fund computing power. The case, first filed in 2024, centers on the co-founding of OpenAI in 2015 as a nonprofit for safe artificial intelligence. Questions about Altman's honesty have persisted, including a 16,000-word New Yorker article and OpenAI's board citing his "candor" in removing him as CEO in 2023. An initial public offering for the ChatGPT maker is expected before the end of this year.