Nearly ninety venture‑capital firms and other money managers have poured money into both OpenAI and Anthropic, the two AI powerhouses that have been jostling for engineers, customers and public attention. PitchBook data, analyzed by WIRED, reveals that about 42% of OpenAI’s backers also hold stakes in Anthropic, while roughly one‑third of Anthropic’s investors sit on OpenAI’s shareholder list. Major players such as Sequoia Capital, Greylock, Founders Fund, Redpoint Ventures, Emerson Collective, Sound Ventures and Amazon appear on both sides of the ledger.
The overlap is striking given the rivalry that has unfolded on the policy front and at industry events. Earlier this year, the CEOs of the two labs were the only leaders to skip a high‑profile business summit where most AI executives stood together. Yet the same investors are financing both companies, a pattern that experts describe as “unusual” or even “unprecedented.”
Both labs are eyeing initial public offerings in 2026, positioning the dual stakes as a hedge against uncertainty. OpenAI and Anthropic have each raised well over $100 billion at valuations inching toward the trillion‑dollar mark. Historically, venture firms would back one contender in a competitive space to avoid conflicts of interest, but the sheer scale of these AI startups has shifted that calculus. “Any single investor owns such a tiny slice of a company that conflicts are not a major concern,” says Kyle Stanford, director of venture‑capital research at PitchBook.
Harvard Business School professor Tom Nicholas argues the investor landscape reflects a sophisticated view of the AI market: “Few are convinced this will be a winner‑take‑all market, or if it is, who the dominant player will be.” By spreading bets across both labs, investors keep their options open as the sector evolves. Some venture partners liken the strategy to buying both Pepsi and Coke, a sentiment echoed by an anonymous VC who noted that demand for AI tools spans every industry.
Not all firms follow the dual‑investment play. Khosla Ventures, Thrive Capital and a handful of others have staked their chips on only OpenAI, while Menlo Ventures and General Catalyst have limited themselves to Anthropic. When asked, Menlo’s Matt Murphy said the firm goes “all in” for its portfolio companies and avoids backing direct competitors. Thrive’s founder Joshua Kushner, on the other hand, described the firm’s approach as “serial monogamy,” preferring to stick with one AI partner.
The growing prevalence of overlapping ownership also mirrors broader changes in venture capital. Funds have ballooned in size, allowing them to back a larger number of startups while companies stay private longer and raise ever‑larger rounds. About thirty of the overlapping investors are hedge funds, private‑equity firms or wealth managers that traditionally spread their bets, blurring the line between classic venture capital and other asset classes.
For the investors, the dual exposure may double their odds of a successful IPO. While only two‑thirds of recent public listings have enjoyed a significant post‑debut price jump, holding shares in both OpenAI and Anthropic could hedge against a miss on either side. The strategy also guards against the “fear of missing out” on the next big AI breakthrough, a concern voiced by University of Chicago economist Steve Kaplan.
Overall, the intertwined investor base underscores how the AI boom is reshaping capital markets. Rather than forcing a clear‑cut winner, the influx of money into both labs suggests that financiers expect a sprawling, multi‑player ecosystem to emerge, with each company capturing a slice of the expanding demand for generative AI tools.
This article was written with the assistance of AI.
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