Prime Intellect

Prime Intellect is an AI infrastructure company that gives enterprises the compute and tooling to train, deploy, and continuously improve their own open-source models and agents, rather than depending on closed frontier labs. The San Francisco startup provides computing power and specialized software tools that help companies build AI agents, with an approach built around reinforcement learning techniques that iteratively reward successful task completion and penalize errors, letting companies act as their own AI lab by refining models for specific business tasks. Early customers include Ramp and Zapier, who pay for a hosted version of the tools , with a case where Ramp used Prime Intellect to build an agent that helped the fintech find answers inside spreadsheets . The launch marks a $130 million Series A at a $1 billion valuation, led by Radical Ventures with participation from Nvidia Ventures, Intel Capital, Dell Technologies Capital, Iconiq, and angel investors including Aravind Srinivas (Perplexity), Aaron Levie (Box), Winston Weinberg (Harvey), Jeff Wang (Cognition), and Brendan Foody (Mercor) . The round funds what the company calls the Open Superintelligence Stack, a bet that a multipolar model ecosystem, where every firm can own its data, weights, and fine-tuning loop, is a healthier counterweight to concentration among a handful of large labs. The company was founded in 2023 by Vincent Weisser and Johannes Hagemann , and Weisser serves as Co-Founder and CEO with Hagemann as Co-Founder . The launch matters now because reinforcement learning post-training has made custom, task-specific agents economically viable for individual companies, and Prime Intellect is positioning its stack as the default path for teams that want to keep the model, the data, and the improvement loop in-house.