# Joshua Kushner warns AI excitement could weaken venture discipline > Source: > Published: 2026-08-14 21:08:59+00:00 [Joshua Kushner](https://ir.hioscar.com/governance/board-of-directors/person-details/default.aspx?ItemId=e901e0cf-ca47-42d6-8651-53aca29a96b2&ref=runtimewire) used [Thrive Capital](https://www.thrivecap.com/?ref=runtimewire)'s first investor letter to warn that enthusiasm for artificial intelligence could weaken venture judgment, a pointed argument from an investor whose firm backs OpenAI and whose operating affiliate counts the AI lab as an owner. [TechCrunch reported Friday](https://techcrunch.com/2026/08/14/thrives-joshua-kushner-chides-silicon-valley-vcs-over-ai-euphoria/?ref=runtimewire) that Kushner called the AI opportunity difficult to overstate, then criticized investors for focusing on incremental technical shifts without considering where the technology will lead. His concern centers on how excitement affects price, portfolio construction and the willingness to separate a strong business from a sound investment. Kushner founded Thrive Capital in 2009 and built the New York investor around a concentrated, cross-stage strategy. He earned undergraduate and business degrees from Harvard and later co-founded Oscar Health in October 2012, where he remains vice chairman and a director, according to [Oscar's corporate biography](https://ir.hioscar.com/governance/board-of-directors/person-details/default.aspx?ItemId=e901e0cf-ca47-42d6-8651-53aca29a96b2&ref=runtimewire). That operator experience matters to the argument in the letter: Kushner is presenting venture capital as a long-term relationship with a small group of founders rather than a hunt for exposure to every technical trend. ### The discipline argument Kushner's target is venture behavior around AI, particularly the pressure to chase each new model, capability and application category. [Bloomberg estimated](https://www.bloomberg.com/news/articles/2026-08-14/read-joshua-kushner-s-first-formal-thrive-capital-investor-letter?ref=runtimewire) that about 90% of Thrive Capital's money in each fund goes into its 15 largest investments. That concentration gives Kushner's warning a clear strategic purpose. Thrive Capital wants limited partners and founders to view selectivity as a feature, even when competitors are rapidly funding new AI companies. In [Bloomberg's report on the letter](https://www.bloomberg.com/news/articles/2026-08-14/read-joshua-kushner-s-first-formal-thrive-capital-investor-letter?ref=runtimewire), Kushner wrote that markets move between fear and enthusiasm and that "neither is a substitute for judgment." The comparison with the traditional venture power-law model is central. Many investors build large portfolios on the assumption that a small number of extreme outcomes will cover numerous failures. Thrive Capital also depends on exceptional winners, but Kushner argues for committing greater amounts of money and attention to fewer founders. The distinction is narrower than the rhetoric suggests. Concentrating 90% of a fund across 15 positions still relies on outliers, especially when several holdings are private companies carrying large valuations. Thrive Capital's model changes how exposure is distributed and how aggressively winners are supported. It does not remove the dependence on a handful of companies producing enormous returns. ### Kushner has numbers to support the pitch [Bloomberg reported](https://www.bloomberg.com/news/articles/2026-08-14/read-joshua-kushner-s-first-formal-thrive-capital-investor-letter?ref=runtimewire) that Thrive Capital manages more than $65 billion in assets. TechCrunch's account separately said Kushner disclosed $60 billion in assets under management in the letter. Kushner reported a 41% gross internal rate of return across Thrive's funds and a 33% net return after fees and expenses, according to [Bloomberg's investor-letter report](https://www.bloomberg.com/news/articles/2026-08-14/read-joshua-kushner-s-first-formal-thrive-capital-investor-letter?ref=runtimewire). He also said Thrive Capital returned more than $1 billion to investors over the previous 12 months and could produce billions more in liquidity over the coming quarters. Those performance figures were supplied by Kushner in the letter. Portfolio-wide returns can obscure large differences between fund vintages, while asset values for private holdings remain unrealized until shares are sold or distributed. One fund illustrates both the strength and concentration of Thrive Capital's position. [Bloomberg reported](https://www.bloomberg.com/news/articles/2026-08-14/read-joshua-kushner-s-first-formal-thrive-capital-investor-letter?ref=runtimewire) that a $516 million early-stage fund raised in 2022 was valued above $3.7 billion at the end of June after investing early in OpenAI, Anduril and SpaceX. The reported gain gives Kushner standing to challenge competing approaches. It also shows how much Thrive Capital's results depend on a short list of companies maintaining their private-market values or reaching liquid exits. Thrive Capital's own management business has attracted prominent outside capital. In January 2023, Bob Iger, Henry Kravis, Mukesh Ambani, Jorge Paulo Lemann and other investors bought about 3.3% of Thrive Capital for $175 million, implying a valuation near $5.3 billion, [Axios reported](https://www.axios.com/pro/media-deals/2023/01/24/thrive-capital-bob-iger-stake?ref=runtimewire). The transaction gave Kushner additional capital to build the organization around the concentrated model he is now defending publicly. ### OpenAI makes the warning harder to dismiss Thrive Capital's relationship with OpenAI turns Kushner's letter into a statement about how he intends to deploy AI, rather than a general warning from the sidelines. On December 1, 2025, [OpenAI announced that it had taken an ownership stake in Thrive Holdings](https://openai.com/index/thrive-holdings/?ref=runtimewire), Kushner's vehicle for acquiring and building operating businesses. OpenAI said its research, product and engineering employees would work inside Thrive Holdings companies, beginning with accounting and IT services. The arrangement puts Kushner's inside-out thesis into practice. Thrive Holdings acquires businesses with established customers, workflows and domain data, then works with OpenAI to apply models across their operations. Kushner has argued that incumbent industries can be rebuilt by practitioners using AI inside existing organizations, rather than waiting for software entrants to replace them. According to figures Kushner supplied in the letter, Thrive Holdings has acquired more than 70 businesses and employs 35 engineers. He said one accounting platform produces tax returns 30% faster with 98% accuracy using agents, while an IT services operation lets agents resolve half of its help desk tickets independently. The supplied reporting does not independently verify those operating metrics. OpenAI described its investment as an ownership stake without stating the percentage or governance terms. The structure still creates a clear alignment: Thrive Capital benefits when OpenAI's value grows, Thrive Holdings gains direct access to OpenAI personnel and products, and OpenAI gets deployment environments inside dozens of operating businesses. That alignment also raises the stakes for Kushner's warning. [Thrive Capital is an OpenAI investor, while Thrive Holdings separately partners with OpenAI](https://www.bloomberg.com/news/articles/2025-12-01/openai-takes-stake-in-thrive-holdings-adding-to-circular-deals?ref=runtimewire) on enterprise AI adoption. Investment discipline at Thrive therefore includes judging how much capital to commit to an AI leader that already occupies an important place in its venture portfolio and operating-company strategy. ### What Kushner is defending Kushner's first investor letter defines Thrive Capital as a founder-centered institution that can continue backing selected companies across stages, sectors and market cycles. The AI critique supports that identity. It tells limited partners that Thrive Capital will keep making large technology bets while resisting the pressure to finance every company attached to the dominant theme of the moment. The practical test will be whether concentration preserves judgment as positions grow larger and relationships become more intertwined. Access to OpenAI gives Thrive Capital an advantage in evaluating AI, while Thrive Holdings receives direct help deploying it. Those relationships can make independent price discipline harder when OpenAI supports venture returns, operating-company improvements and Thrive Capital's standing with founders. Kushner's strongest point is the simplest one: an exceptional company can still be a poor investment at the wrong price. Thrive Capital's own returns suggest that concentration has worked for Kushner so far. The investor letter commits him to applying the same standard during an AI cycle in which Thrive Capital has unusually large incentives to remain enthusiastic.