Sam Altman won dismissal of his sister's sexual abuse lawsuit in federal court

Sam Altman, chief executive of OpenAI, had a federal lawsuit brought by his sister, who accused him of sexual abuse, thrown out, according to Bloomberg.

U.S. District Judge Zachary Bluestone wrote that Sam Altman's sister skipped the independent medical examination even though she had been told that missing it would end her case, according to CNBC. Bluestone also approved Sam Altman's bid to withdraw his own claim that she made "false statements" damaging his reputation, according to Bloomberg.

His sister filed the lawsuit in January 2025 in federal court in St. Louis, according to CNBC. She alleged that he sexually abused and raped her from 1997 to 2006, while they lived in the family home in Clayton, Missouri, a St. Louis suburb. She said the abuse started at age 3 for her and age 12 for him, according to CNBC. Sam Altman is 41.

She said the final incidents took place after he had reached adulthood, while she was still underage, according to Bloomberg.

Sam Altman denies the allegations. When the lawsuit was filed, he put out a statement in the name of himself, his mother and his brothers, describing the claims as "utterly untrue," according to Bloomberg. He has said his sister turned to social media to make accusations against him once the family refused her requests for additional money, according to CNBC.

Laura Politi, a lawyer for his sister, had not responded to a request for comment, according to CNBC. Santos Perez, who represented her in the case until withdrawing this month, said in a statement, "I am no longer authorized to comment on this case but I continue to believe in Annie." Lawyers for Sam Altman had not responded to requests for comment from either outlet.

Sam Altman rose to prominence amid the surge in AI interest once OpenAI launched its ChatGPT chatbot in 2022, according to CNBC.