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Anthropics Seven Cofounders Are Now Worth A Combined 116 Billion
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Anthropic’s Seven Cofounders Are Now Worth A Combined $116 Billion

May 29, 2026 Richard Nieva Forbes

When Anthropic announced on Thursday that it had raised $65 billion at an eye-watering valuation of $965 billion, it didn’t just become the most valuable AI startup in the world, eclipsing $852 billion-valued archrival OpenAI. It also ballooned the individual fortunes of Anthropic’s seven cofounders — more than doubling their net worths to $16.6 billion apiece, Forbes estimates.

Anthropic’s Seven Cofounders Are Now Worth A Combined $116 Billion. When Anthropic announced on Thursday that it had raised $65 billion at an eye-watering valuation of $965 billion, it didn’t just become the most valuable AI startup in the world, eclipsing $852 billion-valued archrival OpenAI. It also ballooned the individual fortunes of Anthropic’s seven cofounders — more than doubling their net worths to $16.6 billion apiece, Forbes estimates. That’s still less than OpenAI president Greg Brockman, who testified during the company’s trial versus Elon Musk earlier this month that his stake in the startup is worth nearly $30 billion. But it’s more than the stake of OpenAI cofounder Ilya Sutskever, who testified his cut of OpenAI is worth around $7 billion. And it’s of course larger than that of OpenAI CEO Sam Altman, who owns no direct sta...