OpenAI CEO Sam Altman denies sexual abuse allegations made by his sister in lawsuit
OpenAI CEO Sam Altman visits “Making Money With Charles Payne” at Fox Business Network Studios in New York on Dec. 4, 2024.
Mike Coppola | Getty Images
OpenAI CEO Sam Altman’s sister, Ann Altman, filed a lawsuit on Monday, alleging that her brother sexually abused her regularly between the years of 1997 and 2006.
The lawsuit, which was filed in U.S. District Court in the Eastern District of Missouri, alleges that the abuse took place at the family’s home in Clayton, Missouri, and began when Ann, who goes by Annie, was three and Sam was 12. The filing claims that the abusive activities took place “several times per week,” beginning with oral sex and later involving penetration.
The lawsuit claims that “as a direct and proximate result of the foregoing acts of sexual assault,” the plaintiff has experienced “severe emotional distress, mental anguish, and depression, which is expected to continue into the future.”
The younger Altman has publicly made similar sexual assault allegations against her brother in the past on platforms like X, but this is the first time she’s taken him to court. She’s being represented by Ryan Mahoney, whose Illinois-based firm specializes in matters including sexual assault and harassment.
The lawsuit requests a jury trial and damages in excess of $75,000.
In a joint statement on X with his mother, Connie, and his brothers Jack and Max, Sam Altman denied the allegations.
“Annie has made deeply hurtful and entirely untrue claims about our family, and especially Sam,” the statement said. “We’ve chosen not to respond publicly, out of respect for her privacy and our own. However, she has now taken legal action against Sam, and we feel we have no choice but to address this.”
Their response says “all of these claims are utterly untrue,” adding that “this situation causes immense pain to our entire family.” They said that Ann Altman faces “mental health challenges” and “refuses conventional treatment and lashes out at family members who are genuinely trying to help.”
Sam Altman has gained international prominence since OpenAI’s debut of the artificial intelligence chatbot ChatGPT in November 2022. Backed by Microsoft, the company was most recently valued at $157 billion, with funding coming from Thrive Capital, chipmaker Nvidia, SoftBank and others.
Altman was briefly ousted from the CEO role by OpenAI’s board in November 2023, but was quickly reinstated due to pressure from investors and employees.
This isn’t the only lawsuit the tech exec faces.
In March, Tesla and SpaceX CEO Elon Musk sued OpenAI and co-founders Altman and Greg Brockman, alleging breach of contract and fiduciary duty. Musk, who now runs a competing AI startup, xAI, was a co-founder of OpenAI when it began as a nonprofit in 2015. Musk left the board in 2018 and has publicly criticized OpenAI for allegedly abandoning its original mission.
Musk is suing to keep OpenAI from turning into a for-profit company. In June, Musk withdrew the original complaint filed in a San Francisco state court and later refiled in federal court.
Last month, OpenAI clapped back against Musk, claiming in a blog post that in 2017 Musk “not only wanted, but actually created, a for-profit” to serve as the company’s proposed new structure.
Jensen Huang, NVIDIA founder and CEO, has a Q&A session at a press conference during the APEC CEO summit on October 31, 2025 in Gyeongju, South Korea.
Woohae Cho | Getty Images News | Getty Images
Even Nvidia CEO Jensen Huang couldn’t save the tech and artificial intelligence trade this week.
The chip giant’s talismanic leader trumpeted “off the charts” chip sales and dismissed talk of an “AI bubble,” and for a while, the tide lifted all boats.
“There’s been a lot of talk about an AI bubble,” Huang said during an earnings call this week. “From our vantage point, we see something very different.”
The buzz from the blowout report quickly reversed, sending the AI winners deeply into the red — and few beneficiaries were left unscathed.
Every member of the Magnificent 7, except for Alphabet, was tracking for a losing week, with Nvidia, Amazon and Microsoft staring down the biggest losses.
Amazon and Microsoft have led the group’s drop lower, falling about 6% this week. Meanwhile, Alphabet has gained nearly 8%. The search giant is also the only megacap of the group on pace for November gains thanks to a boost from the launch of Gemini 3.
Oracle, which is another major Nvidia customer, slumped about 10%. The chipmaker also supplies major model developers such as OpenAI and Anthropic.
Chip stocks have also declined amid the broader tech market turmoil. Advanced Micro Devices and Micron were on pace for 17% losses. Marvell Technology has slumped about 10%. Quantum computing stocks Rigetti, IonQ and D-Wave have dropped at least 10%
CoreWeave, which buys and rents out Nvidia’s chips in data centers, initially soared on the chipmaker’s earnings report, but swiftly reversed course. The company’s stock is looking at an 8% blow this week.
AI fever was cooling in the runup to Nvidia’s earnings report on Wednesday, and investors looked to the print to alleviate fears that the AI bubble was on shaky ground. Since the launch of ChatGPT in late 2022, the stock has helped power the market to new all-time highs.
But concerns have mounted in recent weeks as tech stocks hit stretched valuations.
Major investors, including Bridgewater’s Ray Dalio told CNBC Thursday that the market is definitely in a bubble.
Much of the worries have stemmed from a boom in capital expenditures spending to support AI, with few signs of a payoff in view for many of the players.
Investor Michael Burry recently accused some of the biggest cloud and infrastructure providers of understating depreciation expenses and estimating a longer life cycle for their chips, calling it “one of the more common frauds of the modern era.”
Earlier this month, Burry revealed bets against Nvidia and Palantir.
Shares of the software analytics company, which supplies AI tools to the government and businesses, are down 11% this week. The stock has shed nearly a quarter of its value this month.
WATCH: Bridgewater founder Ray Dalio: We are definitely in a bubble, but that doesn’t mean you should sell
-
Sports2 years agoStory injured on diving stop, exits Red Sox game
-
Sports3 years ago‘Storybook stuff’: Inside the night Bryce Harper sent the Phillies to the World Series
-
Sports2 years agoGame 1 of WS least-watched in recorded history
-
Sports3 years agoButton battles heat exhaustion in NASCAR debut
-
Sports3 years agoMLB Rank 2023: Ranking baseball’s top 100 players
-
Sports4 years ago
Team Europe easily wins 4th straight Laver Cup
-
Environment3 years agoJapan and South Korea have a lot at stake in a free and open South China Sea
-
Environment1 year agoHere are the best electric bikes you can buy at every price level in October 2024