Shivon Zilis is the mother of four of Musk's children. That relationship began as she advised OpenAI.

She did not disclose her romantic relationship with Musk to Greg Brockman. She gave birth to twins while still a board member at OpenAI, and found out their father was Elon Musk…

Shivon Zilis described serving on OpenAI's board while beginning a relationship with billionaire Elon Musk, one of the company's co-founders.