Greg Brockman told a jury he feared Elon Musk would physically strike him during a heated 2017 argument. The billionaire stormed out after being denied total control of OpenAI.

Brockman reframed his personal diary entries as painful but honest reflections, not proof of opportunism. He also revealed his OpenAI stake is now worth $30 billion.

Sam Altman is expected to take the stand next week. OpenAI argues Musk's lawsuit is a meritless attack by a rival who voluntarily left the company.

Musk donated $38 million to launch OpenAI as a nonprofit. Now valued at over $850 billion, the company has pivoted to for-profit, spending $50 billion annually on computing—up from just $30 million in 2017.

Brockman argued a charity could never afford such massive costs. Musk claims his founding donation was misappropriated and the original mission betrayed.

OpenAI counters that Musk left after failing to seize majority control and later founded rival xAI. The trial's financial stakes are enormous for both sides.

Brockman testified that Musk told OpenAI staff in 2018 he would pursue AI at Tesla without safety constraints. 'If the sheep are dictating safety and the wolves are not, then there’s no purpose,' Musk allegedly said.

The comment highlights a deep philosophical split over AI risk. Musk now runs xAI, a direct competitor to OpenAI.

OpenAI's legal team argues the lawsuit is hypocritical given Musk's own safety-lax stance. The courtroom drama continues.

'I thought he was going to hit me,' OpenAI co-founder says of Musk

'I thought he was going to hit me,' OpenAI co-founder says of Musk

Elon Musk 'was going to hit me,' OpenAI executive says at trial

Elon Musk 'was going to hit me,' OpenAI executive says at trial

Open AI president testifies he feared Elon Musk ‘was going to hit’ him during confrontation

Open AI president testifies he feared Elon Musk ‘was going to hit’ him during confrontation

‘I Actually Thought He Was Going to Hit Me,’ OpenAI’s Greg Brockman Says of Elon Musk

‘I Actually Thought He Was Going to Hit Me,’ OpenAI’s Greg Brockman Says of Elon Musk

OpenAI President Claims Elon Musk Physically Threatened Him

Musk ‘was going to hit me,’ OpenAI executive says at trial

Musk ‘was going to hit me,’ OpenAI executive says at trial