The sister of OpenAI CEO Sam Altman, Ann Altman, has filed a lawsuit accusing him of sexual abuse spanning from 1997 to 2006.
The lawsuit, submitted on January 6 to the U.S. District Court for the Eastern District of Missouri, alleges that the abuse began when Ann was three years old, and Sam was 12.
In a joint statement on X, with his mother and two brothers, Mr Altman denied the allegations, saying “all of these claims are utterly untrue.”
“Caring for a family member who faces mental health challenges is incredibly difficult,” the statement added.
“This situation causes immense pain to our entire family.”
In a lawsuit reviewed by the BBC, Ann Altman alleges that her brother, Sam Altman, subjected her to years of abuse, including rape.
The filing states that the last alleged incident occurred when Mr. Altman was an adult, and Ms. Altman was still a minor.
The lawsuit seeks a jury trial and damages exceeding $75,000 (£60,100).
Ms. Altman has previously made similar accusations against her brother on social media platforms like X.
Sam Altman is a prominent figure in the tech industry. In late 2022, his company, OpenAI, introduced the ChatGPT generative AI chatbot.