Harvey hits $15.5B valuation, months after reaching $11B

Harvey, the legal AI startup that VCs can’t get enough of, has raised another $550 million in funding, this time at a $15.5 billion valuation, the company announced Wednesday. The round was co-led by Diffusion and Lightspeed Venture Partners and follows a $200 million round at an $11 billion valuation announced in March — itself just a few months after an $8 billion valuation from a round in December.

With this latest infusion, Harvey has raised more than $1.55 billion total and nearly doubled its valuation in about nine months. Like Databricks, the company didn’t name the round, though it has completed at least eight priced rounds since 2023 — five of them since 2025 — PitchBook estimates. Since a couple of those were considered extension rounds, this one could be considered a Series F.

The fresh capital comes a couple of weeks after Harvey announced its first in-house model, Harvey Tenet, built from open-weight model Kimi K3 and post-trained with legal data with the help of inference provider Fireworks, which also helped Cursor train its own homegrown model. Beyond offering a model itself, Harvey is encouraging its customers to adopt and post-train their own open-weight models. That makes Harvey an example of how an entire industry — law — can heavily use AI while not relying on proprietary frontier AI labs like OpenAI and Anthropic.

Why it matters

Harvey’s climb shows investors still pricing legal AI as a category-defining bet, even as the startup pushes its own enterprise customers toward open-weight models instead of proprietary frontier labs — a stance that could reshape how the legal industry buys AI.