Deep Cogito, a post-training research lab focused on reinforcement learning and self-improvement, has announced a $43 million Series A led by TQ Ventures, with participation from Benchmark, Nexus Venture Partners, Atreides Management, South Park Commons, and Zscaler. The round brings Deep Cogito's total funding to more than $56 million.

Deep Cogito is a post-training research lab focused on reinforcement learning and recursive self-improvement. The company builds frontier open-weight models through the Cogito family and applies the same post-training engine to create specialized models trained on enterprises' proprietary data, decisions and outcomes. Deep Cogito was founded by members of the team behind Google AI Search and is based in San Francisco.