Sam Altman testified Tuesday that Elon Musk was obsessed with controlling OpenAI, initially demanding 90% equity and repeatedly insisting on majority control before walking away and declaring the company would fail without him.

"An early number that Mr Musk threw out was that he should have 90% of the equity to start," Altman told the jury in Oakland, California. "It then softened, but it always was a majority."

When Altman and co-founder Greg Brockman refused to cede control, Musk departed entirely. "The thing that burnt into my........

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