AI Sapiens K0

Model: ai-sapiens-k0

AI Sapiens K0 is a fully open-source humanoid research platform from ROBOTIS, the South Korean actuator manufacturer behind the Dynamixel servo line. Standing 1.3 m tall and weighing 34 kg with 23 degrees of freedom, it is designed as a reproducible baseline for Physical AI research — bridging simulation-trained policies with real hardware deployment. The platform is powered by 23 Dynamixel-Q Quasi-Direct Drive (QDD) actuators (14× QM-060, 9× QM-080) that provide high backdrivability and torque-level control for dynamic balancing and compliant manipulation. K0 supports reinforcement learning training in NVIDIA Isaac Sim and imitation learning via a leader-follower data collection system. ROBOTIS plans to release the complete hardware Bill of Materials, STEP CAD files, source code, simulation assets, and tutorials as open source, enabling researchers to build, modify, and extend the platform without licensing restrictions. The onboard compute features a Cortex-A76/A55 CPU, Mali-G610 GPU, and a 6 TOPS NPU, powered by a 46.8 V 9000 mAh battery.