Harvey AI is an artificial intelligence platform built for complex legal and professional services work, co-founded by Winston Weinberg and Gabe Pereyra. Harvey's Twitter Score is 41 out of 1000 as of October 2026, ranking #23,077 (top 5%) among 498,181 tracked accounts.
Harvey develops AI infrastructure for law firms and in-house legal teams, covering workflows such as contract analysis, due diligence, compliance, and litigation support. The platform is built in partnership with OpenAI to produce custom-trained models suited to the demands of legal professionals. As of March 2026, Harvey reported more than 100,000 lawyers across 1,300 organizations using the platform across 60 countries, with total funding surpassing $1 billion.
Harvey has raised capital across several rounds at rapidly increasing valuations. An $80 million Series B was announced in December 2023 at a $715 million valuation, followed by a $100 million Series C in July 2024 at $1.5 billion, and a $300 million Series D in February 2025 at $3 billion. A further $160 million investment led by Andreessen Horowitz was announced in December 2025 at an $8 billion valuation. Most recently, in March 2026, Harvey raised $200 million co-led by GIC and Sequoia Capital at an $11 billion valuation. Additional backers include Kleiner Perkins, GV, the OpenAI Startup Fund, Coatue, Conviction, SV Angel, WndrCo, T. Rowe Price Associates, EQT, Elad Gil, and others.
Harvey has accumulated 22,001 followers as of October 2026 on the platform and has published 572 posts. Harvey has been mentioned by 160 accounts a total of 359 times.
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The accounts that follow Harvey include 201 founders, 47 angel investors, 57 influencers and 6 VCs, among them Marc Andreessen, Santiago R Santos, Gabriel Shapiro, Matthew Graham, Imran and Cuy Sheffield.