Shivon Zilis, a former director at OpenAI, testified in a federal court in Oakland, California, about her relationship with Elon Musk, which evolved from a brief romance into a co-parenting arrangement that produced four children. Zilis revealed that Musk offered to donate sperm in 2020, as he encouraged those around him to have children. Initially, they agreed to keep Musk's paternity of their twins, born in 2021, confidential due to a prior agreement. Zilis did not inform OpenAI's CEO Sam Altman about Musk's involvement until 2022, when a report was set to be published. Her testimony is significant due to her overlapping roles in Musk's ventures and OpenAI during a pivotal time for the company. The court also examined Musk's push for increased control over OpenAI, including proposals to integrate it into Tesla. Zilis left OpenAI's board shortly before Musk founded xAI, which now competes with OpenAI's ChatGPT.