Australian Financial Review: How a former junior lawyer created a $7b AI legal start-up

Winston Weinberg’s company, which is about to open an office in Australia, is making lawyers ‘a lot more productive’, but critics say it offers little more than ChatGPT.

hen Winston Weinberg, co-founder of legal artificial intelligence company Harvey, turned 30 last year, he marked the occasion with three work calls and a walk on the beach.

While many young people would resent the lack of celebration, he said founders should be “willing to outcare and outwork other people”, adding: “In the AI space, we are on a compressed timeline, so what seemed fast execution-wise two years ago is simply not good enough now.”

Harvey was founded in 2022 as the brainchild of Weinberg, once a junior lawyer, and his friend and former DeepMind research scientist Gabe Pereyra.

It has grown from one client to more than 500 over the past three years, spanning some of the world’s largest law firms and companies, with annual recurring revenue of $US100 million ($150 million).

Harvey was valued at $US5 billion ($7.5 billion) after its last funding round in June, co-led by US venture capital firm Kleiner Perkins and investment firm Coatue, with funds also coming from OpenAI and Sequoia.

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https://www.afr.com/companies/professional-services/how-a-former-junior-lawyer-created-a-7b-ai-legal-start-up-20250916-p5mvi1