Nine California jurors began deliberations in a high-stakes case that could reshape the future of OpenAI, the world's leading artificial intelligence laboratory. The trial centers on Elon Musk's allegations against cofounders Sam Altman and Greg Brockman, as well as Microsoft. While testimony has covered dramatic events including the 2018 breakup among the founders and Altman's brief firing and subsequent rehiring in 2023, jurors are focused on three specific legal questions. The first question involves breach of charitable trust. Musk's attorneys argue that the defendants violated a specific agreement regarding how his donations to OpenAI would be used—exclusively for charitable, nonprofit purposes rather than general corporate operations. The second question addresses unjust enrichment, examining whether defendants used Musk's donations to personally benefit through OpenAI's for-profit subsidiary. The third charge, aiding and abetting breach of charitable trust, focuses on whether Microsoft knowingly participated in violations of Musk's donation conditions. OpenAI has mounted three defenses. The statute of limitations argument claims certain harms allegedly occurred before key dates in 2021 and 2022, which would render those claims invalid. The company also argues Musk demonstrated unreasonable delay by filing his lawsuit in 2024, making his damage claims unreasonable. Additionally, OpenAI invokes the unclean hands doctrine, asserting that Musk's own conduct was improper and invalidates his claims. Musk's legal team specifically highlighted a $10 billion Microsoft investment in 2023 into OpenAI's for-profit arm as the pivotal event occurring after the statute of limitations. If Musk prevails on all counts, the verdict could effectively end OpenAI's current for-profit structure. However, next week the judge will hold separate hearings to determine what consequences a verdict in Musk's favor might actually entail, though those proceedings could become irrelevant if jurors rule against him.