You won’t find SenseTime’s name on the building that houses its Beijing headquarters, but its technology guards the entrance. All workers must clear a security check by SenseTime’s facial-recognition software, and company employees pass a second face scan to enter their offices.

SenseTime, a privately-held company now valued at more than $7 billion, shows off some of the products that made it one of the world’s hottest startups in artificial intelligence, and helped the company beat out Facebook’s facial recognition algorithm to become the most accurate in the world.

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