Nadia

IHMC Robotics

United States

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Nadia is IHMC's hybrid hydraulic-electric biped research humanoid, built with Boardwalk Robotics and named after the gymnast Nadia Comaneci. It stands 190 cm and weighs 100 kg with 29 degrees of freedom and two finger grippers, and at launch it had some of the widest joint movement of any humanoid, because the goal was to match the range of motion of a human body. The architecture is genuinely hybrid: Moog hydraulic Integrated Smart Actuators drive the legs and spine, while electric motors drive the hip and spine yaw joints and the arms; the shell is carbon fibre composite, planetary drives serve hip and spine yaw motion and cycloidal drives serve the arms. It reaches 3.5 km/h and is rated for 12 kg of strength, runs IHMC's in-house open-source whole-body control software, and connects over CAN bus inside the actuators, EtherCAT and a tether. It was designed for indoor and urban spaces full of stairs, ladders and debris, with firefighting, disaster response, bomb disposal and nuclear clean-up as target tasks, and it is explicitly a supervised research platform rather than a safe collaborator. IHMC lists it as a prototype at a stated price of 700,000 US dollars.