Ace
Ace is Sony AI's autonomous table-tennis research robot for studying physical AI in fast, interactive tasks. The system combines event-based vision, high-speed cameras, and reinforcement-learning control to track ball position and spin with millisecond timing, then return shots through an eight-degree-of-freedom racket platform. Sony AI says Ace followed International Table Tennis Federation rules and scored wins against elite players, while the Nature paper describes it as a real-world autonomous system competitive with elite human table-tennis players. It is a research prototype rather than a commercial sports or home robot, but it is notable for pushing real-time perception and agile robot control toward professional-speed human interaction.