Decart raises $300M to put a real-time world model in front of Amazon's chips

This article was published on May 18, 2026 Radical Ventures led the round, with Nvidia, Sequoia, Benchmark, Adobe, and Toyota alongside. Andrej Karpathy, Michael Eisner, and the Nintendo family are angels. Total raised is now over $450m. Decart, the AI research lab building real-time video and world models, announced on Monday it had raised $300m in new funding led by Radical Ventures. The round takes the two-year-old company’s total raised past $450m, with Nvidia, Atreides Management, Valor Equity Partners, Adobe Ventures, Toyota Ventures, and eBay Ventures joining as new investors alongside returning backers Sequoia Capital, Benchmark, and Zeev Ventures. The angel list is the part that signals how Decart is positioning the company. Andrej Karpathy, the OpenAI co-founder and former Tesla AI head, is on the cap table alongside former Disney chief executive Michael Eisner, the Nintendo family, and gaming investor Moritz Baier-Lentz. \The mix is media, gaming, and infrastructure rather than pure software engineering. It maps to the constituencies whose use cases the company says its products are now being deployed against. Decart sells three things on its own framing. DOS is the Deca