Sam Altman, the CEO of OpenAI, has publicly denied serious allegations from his sister, Ann Altman, who filed a lawsuit accusing him of childhood sexual abuse.

The lawsuit, filed on January 6, claims the abuse occurred between 1997 and 2006, starting when Ann was just three years old, with the final incident alleged to have taken place after Sam had reached adulthood.

Ann Altman’s legal claim includes allegations of regular sexual abuse and rape, and that she seeks damages over $75,000. The accusations have rocked the tech world, given Sam Altman’s prominence as the co-founder of OpenAI and the head of the company that launched ChatGPT in 2022.

My sister has filed a lawsuit against me. Here is a statement from my mom, brothers, and me: pic.twitter.com/Nve0yokTSX
— Sam Altman (@sama) January 7, 2025

In response, Sam Altman issued a joint statement with his mother and two brothers, labeling the claims “utterly untrue.” The statement expressed concern for Ann's mental health and stated that she had previously made similar claims on social media. “Caring for a family member who faces mental health challenges is incredibly difficult,” the statement said, adding that the situation has caused immense pain for the family.

I experienced sexual, physical, emotional, verbal, financial, and technological abuse from my biological siblings, mostly Sam Altman and some from Jack Altman.

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— Annie Altman (@anniealtman108) November 14, 2021

Ann Altman’s lawyers argue that the alleged abuse has deeply affected her mental health. She has previously made public accusations of abuse against Sam and their brother Jack, alleging a history of mistreatment and seeking legal justice.