Harvey, the legal AI startup that’s got venture capitalists in a tizzy, has just raised another $550 million, boosting its valuation to a whopping $15.5 billion. This latest round, co-led by Diffusion and Lightspeed Venture Partners, comes hot on the heels of a $200 million investment at an $11 billion valuation in March, and a $8 billion valuation in December. In just nine months, Harvey has nearly doubled its valuation, raising more than $1.55 billion in total.

But it’s not just about the money. Harvey’s recent announcement of its first in-house model, Harvey Tenet, which is built from the open-weight model Kimi K3 and post-trained with legal data, signals a shift in the legal industry. The company is encouraging its customers to adopt and post-train their own models, making it a beacon for the broader industry to follow suit. This move could spell the end for relying on proprietary AI labs like OpenAI and Anthropic, or so Harvey hopes.

The rapid rise of Harvey in the AI landscape is a testament to the growing demand for specialized legal AI solutions. With the legal sector being one of the last to adopt AI, Harvey’s success could pave the way for a more AI-driven future. Whether this means lawyers will become obsolete or just need to upskill, only time will tell.

For now, Harvey is setting the bar high, and the rest of the legal tech world will be watching closely. Will they follow in Harvey’s footsteps, or will they lag behind the AI revolution? Only the future can answer that.