Shivon Zilis, the mother of four of Elon Musk ’s children, revealed in court Wednesday personal details about her complicated and once-secret relationship with the tech billionaire , providing a rare glimpse into their private life during a high-profile legal battle over artificial intelligence. Zilis, who is also a longtime adviser to Musk, took the witness stand on the sixth day of his lawsuit against fellow OpenAI co-founders Sam Altman and Greg Brockman. Musk alleges the executives abandoned OpenAI’s original nonprofit mission in pursuit of profit and personal gain. The 40-year-old revealed that sometime after she joined OpenAI in 2016, she had a romantic “one-off” with Musk. But she insisted her personal relationship with Musk never influenced her judgment as an OpenAI board member, which she served on from 2020 to 2023. “I had an allegiance to the best outcome, AI for humanity,” she testified during questioning by Musk attorney Jennifer Schubert.…