Summary
- • ~90 VC firms hold stakes in both OpenAI and Anthropic simultaneously
- • OpenAI shares 42% of its investors with Anthropic, including Sequoia and Founders Fund
- • Experts call the dual-investment pattern unusual or unprecedented in venture capital
- • Both companies target IPOs this year at valuations exceeding $100 billion
Details
~90 VC firms hold stakes in both OpenAI and Anthropic simultaneously
WIRED's analysis of PitchBook data found roughly 90 venture capital firms and money managers have invested in both labs — a pattern three industry experts described as unusual or unprecedented in venture capital history.
OpenAI shares 42% of investors with Anthropic; a third of Anthropic's investors also back OpenAI
Major shared investors include Sequoia Capital, Greylock, Founders Fund, Redpoint Ventures, Emerson Collective, and Sound Ventures. True overlap may be higher — Amazon, a known OpenAI backer, was absent from PitchBook's data.
Anthropic's latest round included at least 13 investors who also hold OpenAI stakes
Among the 31 investors named in Anthropic's most recent fundraising round, at least 13 also hold OpenAI positions — illustrating how crossover ownership persists even in new funding events.
Investors treating AI as a category bet, not a company bet
Harvard Business School professor Tom Nicholas argued: 'Few are convinced this will be a winner-take-all market.' PitchBook's Kyle Stanford, director of venture capital research, frames it as return protection: 'What these large investors are doing is protecting their ability to create returns.'
Dual IPO exposure doubles chances of a major liquidity event this year
With both OpenAI and Anthropic targeting IPOs this year at $100B+ valuations, investors holding stakes in both effectively double their odds of capturing significant gains — particularly given that only about two-thirds of recent IPOs delivered meaningful value pops.
Traditional VC norm of backing only one competitor per space has broken down
Historically, VC firms concentrated bets on one company per competitive category to avoid conflicts of interest. As mega-funds grow larger and companies stay private longer, those norms have eroded — creating conditions for unprecedented dual exposure at scale.
Financials = investment/funding data, Market Impact = deal implications, Insight = expert analysis with attribution, Strategy = business positioning, Industry Update = sector-level norm shifts
What This Means
Sophisticated capital is treating frontier AI as a category bet rather than a company bet — hedging against genuine uncertainty about which lab will dominate. As both OpenAI and Anthropic approach IPOs, dual exposure gives major VC firms a structural advantage regardless of which company breaks out. This signals that the AI race remains genuinely open in the eyes of the smartest money, and that the OpenAI-Anthropic rivalry may persist precisely because the outcome is uncertain.