ELON MUSK’S LAWSUIT against Sam Altman and OpenAI — now in its fourth day of testimony — continued Monday in the federal courthouse in Oakland with the testimony of Greg Brockman, one of the original founders of OpenAI and a defendant in the case.

Musk asserts that Altman and Brockman, aided and abetted by co-defendant Microsoft, betrayed the charitable mission of OpenAI to enrich themselves and Silicon Valley insiders.