The trial pitting Elon Musk against the creators of ChatGPT has entered a pivotal second week, with testimony from OpenAI co-founder Greg Brockman laying bare the extraordinary wealth at stake and the company’s accelerating push toward a stock market listing. Under cross-examination in a federal courtroom in Oakland, California, Brockman confirmed that his personal stake in the artificial intelligence laboratory is worth nearly $30bn—a figure that would place him among the world’s hundred richest individuals. He also acknowledged that OpenAI is actively exploring an initial public offering, a step that would value the company at over $850bn according to its most recent fundraising round, and further entrench its transformation from a charitable foundation into a profit-driven juggernaut.

Musk, who co-founded OpenAI in 2015 alongside Sam Altman and Brockman before a bitter falling out, has accused his former partners of betraying the organisation’s original non-profit mission. His legal team is seeking to force OpenAI to revert to its philanthropic roots and to block Altman and Brockman from personally enriching themselves. Court filings released over the weekend reveal that Musk, days before the trial began, sent a message to Brockman proposing a settlement. When Brockman suggested a mutual withdrawal of claims, Musk warned that by the end of the week he and Altman would become “the most hated men in America.” The threat, disclosed by OpenAI’s lawyers, underscores the personal acrimony that has turned a visionary partnership into a public reckoning.

Viewed from Washington, where regulators are increasingly scrutinising the concentration of power in artificial intelligence, the case raises fundamental questions about the governance of transformative technology. Analysts in London note that the outcome could set a precedent for how courts treat the line between philanthropy and commerce in the tech sector, particularly when founders pivot from non-profit to for-profit structures. In Paris, observers have pointed to the irony that Musk, who has repeatedly warned about the existential risks of AI, now finds himself demanding that OpenAI adhere to its original non-profit charter—a stance that chafes against his own aggressive corporate tactics at Tesla and SpaceX. The trial, livestreamed for the first time under a new federal court rule, has also drawn attention to the dissonance between Musk’s public statements and his sworn testimony: he admitted that Tesla is not currently developing general artificial intelligence, directly contradicting a recent post on his social media platform X.

As the proceedings continue, with Altman himself expected to take the stand in mid-May, the broader implications for the industry are profound. A ruling against OpenAI could disrupt its IPO ambitions and force a restructuring that might chill investor enthusiasm for AI ventures built on non-profit origins. Conversely, a victory for Altman and Brockman would validate the commercialisation of technologies originally conceived as public goods—a development that sits uneasily with growing calls for ethical guardrails. The trial, in essence, has become a proxy debate over the soul of artificial intelligence, one whose resolution will resonate far beyond the courtroom doors.