Prime Intellect raises $130M Series A to help enterprises build their own AI agents, hits $100M ARR

Prime Intellect, a startup that helps enterprises build their own AI agents, has raised a $130 million Series A at a $1 billion valuation. The round was led by Radical Ventures, with participation from Nvidia Ventures, Intel Capital, and Dell Technologies Capital, alongside a notable roster of angel investors including founders of Perplexity, Box, Harvey, Cognition, and Mercor.

Founded in 2024, Prime Intellect's mission is to give organizations the capability to train their own agentic systems without relying on frontier AI labs. While this would have been difficult just a few years ago, the rise of reinforcement learning techniques — which iteratively reward successful task completion and penalize errors — now allows companies to become their own AI lab by refining models for specific business tasks.

The startup has built what it calls a "full stack" for AI agent development, comprising compute access, a reinforcement learning framework, and evaluation tools. The platform functions like a marketplace, offering modular access so customers can pick the specific tools they need without being locked into an all-or-nothing system.

"Others offer bits and pieces, but Prime Intellect is unique in providing the capabilities of a top-tier AI lab as a one-stop shop," said David Katz, a partner at Radical Ventures.

The approach has attracted customers including Ramp, Zapier, and Flapping Airplanes. Ramp used Prime Intellect to build an agent that finds answers inside spreadsheets — "the result beat the frontier models on accuracy while running at faster speeds and a fraction of the cost," Ramp's co-founder and co-CEO Karim Atiyeh said in a statement.

The rapid adoption has propelled Prime Intellect to a $100 million annualized revenue run rate, just two years after founding. The company's growth is also fueled by a growing enterprise realization that building on top of frontier labs carries risks — companies don't want to feed proprietary data to OpenAI or Anthropic, and they worry about depending on models that could be suddenly turned off, as happened with Anthropic's Fable last month.

"All of these things are causing people to think, 'How do I own my own enterprise intelligence and not have these risks,'" Katz said.

"It shouldn't just be a few nerds in a glass tower in San Francisco that have the capability to train AI models," said Prime Intellect co-founder and CEO Vincent Weisser. "It should be every enterprise, every nation state."