Original post · Original
Rohan Paul@rohanpaul_ai
Nvidia released GR00T 2, an open world-action model that runs arms, robot hands and humanoids.
Robots normally learn from recordings that pair each camera frame with exact motor commands, and those only come from a person steering a real robot.
Ordinary human video is far cheaper and more plentiful, but it has no motor commands, so earlier models could barely use it.
GR00T 2 eases that by pretraining on 402,730 hours of human head-camera video plus 10,184 hours of handheld-gripper demos, but only 23,500 teleoperated robot hours.
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