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Winston Weinberg

Winston Weinberg is co-founder and chief executive of Harvey, an artificial intelligence company that builds application-layer products for the legal industry, and a former litigator at O'Melveny & Myers [1][2][5]. He holds a J.D. from USC Gould School of Law and an undergraduate degree from Kenyon College [6][7]. Weinberg has said he originally intended a conventional legal career, including a stint at the U.S. Attorney's Office and later a return to private practice, but his outlook shifted after experimenting with OpenAI's GPT-3 API as a junior associate in late 2021 [13]. To test the model's legal capability, he and co-founder Gabriel Pereyra ran an informal experiment using landlord-tenant questions from a consumer legal site, chaining prompts so the model applied statutes to fact patterns, and found that three reviewing attorneys approved 86 of 100 answers without edits, a result he sent directly to OpenAI's Sam Altman and general counsel Jason Kwon [13]. That exchange led to Harvey's founding in mid-2022, before the public release of ChatGPT, with Pereyra's research background giving Weinberg confidence that underlying model capabilities would keep improving [10][13].

Harvey's go-to-market approach centered on partnering with large, prestigious law firms such as Allen & Overy (referred to in discussion as "Ano Sherman") and Latham & Watkins as design partners rather than building the product in isolation and releasing it broadly, a strategy Weinberg says some investors initially discouraged [9][10]. He has argued that in professional services, trust and prestige move downstream, so earning credibility with major firms made adoption by smaller firms and their clients easier [10]. Early sales demonstrations relied on publicly filed legal work product, such as merger agreements or litigation briefs tied to deals a prospective client had handled, which Harvey's system would analyze so the lawyer could judge the output against a known answer [9]. Weinberg has described this period as reflecting a broader product philosophy of "expanding" into narrow, benchmarkable vertical workflows, such as cross-border merger-clearance analysis or contract-clause extraction, and then "collapsing" them into a single interface, since general legal chat interfaces are difficult to evaluate for accuracy while closed, fact-and-regulation-bound tasks are not [10].

Under Weinberg, Harvey scaled from roughly $150 million in annualized revenue with about 500 customers to close to $300 million, with monthly token usage rising from about 1 trillion to 12 to 13 trillion and daily-to-monthly active-user ratios climbing from about 36 percent to over 50 percent, growth he attributes largely to product improvements rather than sales expansion [9][14]. The company reached roughly a $190 million run rate with about 500 employees at one point, expanded to around 1,000 employees and 12 global offices, including large hubs in San Francisco and New York, and grew its internal legal staff to more than 200 lawyers alongside a smaller commercial legal team [11][14]. Office locations, he has said, were driven partly by customer wins, such as Deutsche Telekom prompting a German presence, and partly by data-residency rules requiring in-country cloud infrastructure [14]. Weinberg has attributed part of a later usage surge to a change in cloud infrastructure providers [14].

As chief executive, Weinberg has described his management approach as favoring "bias for action" over prolonged deliberation, preferring that employees make fast decisions and correct course within about a week rather than delay for months [11]. He has said Harvey's internal culture maintains persistently high expectations, with employees expected to "re-earn" their standing roughly every six months, and has characterized rapid scaling as inherently chaotic, noting that core business and go-to-market infrastructure often lag behind the company's growth [11]. He has also spoken about needing to reinvent his own role approximately every four months as new organizational problems emerge [11]. In public discussion of the legal industry's broader response to AI, Weinberg has pointed to legal technology budgets rising from about 2.5 percent to 5 percent of total spending as evidence that automation is expanding overall technology investment rather than simply displacing lawyers [12].

Founded

Experience

  1. CEO & Co-Founder
    HarveyAug 2022 to Present
  2. Associate
    O'Melveny & Myers LLPOct 2021 to Sep 2022

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