A video making its rounds on social media shows an engineer from a startup called Skild AI taking a chainsaw to the limbs of a robot dog.

It’s a bizarre sight: With a short burst of light, a sponge-shaped robot scoots across a tiled surface. Flipped on its back, it repeatedly twitches as if doing sit-ups. By tinkering with the light’s ...

A single AI model trained to control numerous robotic bodies can operate unfamiliar hardware and adapt eerily well to serious ...