Founders Fund Hires Former OpenAI Executive Ryan Beiermeister as Partner

Founders Fund has hired Ryan Beiermeister as a partner, she announced Monday. Beiermeister spent about two years as vice president of product policy at OpenAI during the period when ChatGPT became the fastest-growing consumer application in history. Her tenure ended abruptly in February when she was reportedly fired after objecting to a planned "adult mode" feature for ChatGPT that would have allowed erotic content. The Wall Street Journal reported that her departure involved an accusation of sexual discrimination by a male colleague, which Beiermeister denied as "absolutely false." OpenAI later scrapped the adult mode plan. Beiermeister recently appeared on Founders Fund's YouTube series "Mafia," a social-deduction game played at firm retreats. She competed against figures including OpenAI's Sam Altman, Anduril's Palmer Luckey, and Founders Fund partner Trae Stephens. A firm spokesperson told TechCrunch that her performance in the game was not part of the interview process and that she has known Stephens for at least a decade from their time at Palantir, the data-analytics company founded by Peter Thiel. In a LinkedIn post, Beiermeister said she is focused on backing startups in categories where product engineering is hardest and the stakes are highest, AI infrastructure and agentic systems, defense, energy, climate, biotech, and the regulated frontier. She invited founders in those domains, especially those who don't fit the standard mold, to reach out.