NVIDIA SONIC (full title: "SONIC: Supersizing Motion Tracking for Natural Humanoid Whole-Body Control") is a general-purpose whole-body motion controller for humanoid robots, developed by NVIDIA Research (DAIR). Instead of a separate control policy per skill, a single model reproduces a broad range of whole-body motions, coordinating joints, maintaining balance and adapting movement in real time.
SONIC treats motion tracking as a scalable foundation task and learns from dense supervision provided by motion-capture data. The model was trained on over 100 million frames (about 700 hours) of human motion, scaling from 1.2M to 42M parameters using roughly 21,000 GPU-hours.
The same controller accepts different control sources without retraining: VR teleoperation, video keypoints, text or music cues, and outputs from vision-language-action models. SONIC operates at the motor-control layer rather than as a full autonomy stack; NVIDIA has announced tighter integration with Isaac GR00T, pairing reasoning with motion control.
The work was published in Science Robotics (2026) and as an arXiv preprint (2511.07820). Its first cited deployment is Faraday Future's "FF All-New Futurist" humanoid, described by the maker as the first full-size humanoid robot in the U.S. to natively support NVIDIA SONIC full-body motion control.
Robot Control denotes the role of software responsible for motion control, command execution, coordination of actuating elements and the direct operational logic of the robot.
The real-time control role describes software responsible for closed control loops executed at a guaranteed, deterministic frequency — typically 1 to 10 kHz for current/torque loops in actuators. Unlike soft real-time, in a hard real-time regime missing a deadline is treated as a system error. Implemented on deterministic kernels (Linux PREEMPT_RT, QNX Neutrino RTOS) or dedicated microcontrollers. Critical for biped balance stability, force control, impedance control and functional safety.
Faraday Future "FF All-New Futurist" — cited as the first full-size humanoid robot in the U.S. to natively support NVIDIA SONIC full-body motion control.
