Leopold Aschenbrenner, a 24-year-old hedge fund manager once hailed as an oracle of artificial intelligence, is facing the collapse of his $45 billion Situational Awareness fund just days before his scheduled wedding. The fund's assets have dwindled to an estimated $10 billion after highly leveraged bets on AI investments backfired.
Aschenbrenner, a German-born entrepreneur, gained prominence two years ago after penning a viral manifesto on the future of AI. The essay, which predicted AI systems would achieve superintelligence by 2030, earned praise from Ivanka Trump and garnered a cult following among investors. His distinctive style, including honey-gold hair and monochrome turtlenecks, contributed to his image as a reclusive "Nostradamus of AI."
The rapid success of his fund, which reportedly borrowed heavily against its investments, allowed Aschenbrenner to cultivate a life of luxury with his fiancée, Avital Balwit, chief of staff to the CEO of Anthropic. The couple were preparing for a lavish multi-day wedding celebration in Carmel, California.
However, the fund's fortunes reversed sharply this year as enthusiasm for AI stocks cooled amid concerns over cheaper Chinese models and profitability questions. Falling share prices triggered margin calls from lenders, forcing emergency asset sales that exacerbated losses and created a liquidity crunch.
As guests gathered for his wedding events, Aschenbrenner has been scrambling to raise capital to meet lender demands. He has reportedly appealed to major hedge funds and sold billions of dollars in holdings to Ken Griffin's Citadel. In a letter to investors, Aschenbrenner stated he takes full responsibility and plans to focus on risk management going forward.
Aschenbrenner's meteoric rise began in his teens; he graduated high school in Germany at 15 and college at Columbia University at 19. He and Balwit reportedly met as protégés of Sam Bankman-Fried at the philanthropic arm of FTX. After FTX's collapse, Aschenbrenner briefly worked at OpenAI before being dismissed, a move he disputes, attributing it to concerns over alleged security gaps he exposed in a memo.
He then wrote his influential AI manifesto, which he used to attract significant investment from notable figures such as Stripe co-founders Patrick and John Collison, and top AI executives at Meta. His early success saw him purchase a mansion in San Francisco's Nob Hill neighborhood and earn comparisons to clairvoyants.
The fund's reliance on leverage, reportedly borrowing three to four dollars for every dollar invested, proved to be its undoing. When the AI sector weakened, the strategy became unsustainable. Rival hedge funds are said to have shared information on Situational Awareness's positions, some betting on further declines as the fund was forced to sell assets.
Amid the crisis, Aschenbrenner considered selling a significant stake in Anthropic but ultimately decided to liquidate portions of his public stock portfolio to repay lenders while retaining private investments.