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Billionaire Profile
Tom Brown
Global Rank
#1074

Image: Public domain | via Wikimedia Commons

Tom Brown

CEO, Anthropic
US
Real-Time Net Worth
$3.7B
As of December 2025
Age
38
Source
Artificial intelligence
Industry
technology
Citizenship
US

Biography

Tom Brown is the Chief Compute Officer and Co-founder of Anthropic, an AI startup focused on building large-scale artificial intelligence systems. He co-founded Anthropic in 2021 with six other former OpenAI employees. Brown played a key role in the development of the GPT-3 language model while at OpenAI. His work focuses on the infrastructure needed for scaling AI, a task described as "humanity's largest infrastructure buildout ever." Brown's career path includes a foundation in computer science and cognitive science at MIT, as well as founding a social club, Grouper, in 2011. His current estimated net worth is $3.7 billion, making him a significant figure in the technology industry.

Wealth Over Time

In-Depth Profile

Early Life and Education

Tom Brown, a self-taught engineer, began his journey by studying computer science and cognitive science at MIT. Prior to his work in AI, Brown gained experience in entrepreneurship by founding the social club, Grouper, in 2011.

Rise to Success in AI

Brown's career took a pivotal turn when he joined OpenAI and became a lead author of the white paper introducing the GPT-3 language model. His deep understanding of large-scale compute systems propelled him to co-found Anthropic in 2021. Anthropic, which focuses on AI safety and research, has partnerships with major tech companies. Brown currently oversees Anthropic's compute infrastructure, which has contributed to the company's rapid growth, with the company reaching a valuation of $61.5 billion in March 2025, and $350 billion in November 2025.

Key Business Strategies

At Anthropic, Brown focuses on building and maintaining the extensive infrastructure needed for their AI models, including Claude. Anthropic's approach emphasizes interpretability, steerability, and alignment with human values in model development. The company's commitment to safety and responsible AI development distinguishes it from other commercial-focused peers.

Philanthropy

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Career Milestones

2011

Founded Grouper

Founded a social club.

2021

Cofounded Anthropic

Cofounded Anthropic, an AI startup.

2025

Chief Compute Officer

Oversees Anthropic's compute infrastructure.