According to foreign media reports, on January 10, 2024, Ultraman and his partner Oliver Mulherin held a simple and warm wedding in Hawaii, where they pledged their love. The wedding only invited close family and friends and took place near Ultraman's residence in the area. The ceremony was hosted by Ultraman's brother, Jack Altman, a well-known figure in the startup community and the founder and former CEO of Lattice, a company focused on employee performance management software. Mulherin, who usually keeps a low profile, is described by insiders as having a deep emotional connection with Ultraman. They support each other and grow together. On this joyous day, Ultraman and Mulherin wore casual couple outfits consisting of white shirts, light beige pants, and white sneakers, looking radiant. The couple announced their marriage on Instagram, with Mulherin writing, "I married my best friend and the love of my life." Mulherin is a graduate of the University of Melbourne's software engineering program and was involved in several artificial intelligence projects during his time at school, mainly focusing on language detection and gaming. His main expertise lies in the field of Internet of Things (IoT), and in 2018, he joined the open-source coding organization IOTA Foundation. In September of last year, Ultraman revealed in an interview with The New Yorker that he and Mulherin usually live in a residence in the Russian Hill neighborhood of San Francisco. On weekends, they would go to a private ranch in Napa, California. The ranch has a house built 25 years ago that has undergone renovations. During the interview, Ultraman expressed his intention to start a family soon. Before dating Mulherin, Ultraman was in a nine-year relationship with Nick Sivo, with whom he co-founded Loopt, a software that provides geolocation services to friends. After the company was acquired in 2012, they broke up. Last year, Ultraman and Mulherin were invited to attend a state dinner hosted by the United States for Indian Prime Minister Modi. It was also last year that Ultraman experienced one of the most challenging moments in his career. As the co-founder and CEO of OpenAI, he was fired by the board of directors, causing a sensation. However, he eventually successfully regained his position. Now, he is married and embarking on a new phase of life.