Flexion is a Zurich-based robot AI software company founded by ex-Nvidia researchers who built Isaac Gym (David Hoeller) and ETH Zurich locomotion specialists. The company is developing a hardware-agnostic intelligence layer for humanoid robots using reinforcement learning and transformer-based whole-body control, trained primarily on synthetic simulation data. NVentures (Nvidia's investment arm) led the $50M Series A, reflecting Nvidia's strategy of backing pure-play robot AI software as a complement to its GR00T and Isaac platforms. Flexion's per-robot-per-year licensing model is the clearest attempt yet to create an 'Android of humanoid robotics.'