Much of Tesla's data annotation is done at its facility in Buffalo, New York.
Much of Tesla's data annotation is done at its facility in Buffalo, New York.
  • Tesla's driver-assist software relies on hundreds of data annotators to train it.
  • The team labels thousands of short clips and images from customer cars.
  • Business Insider spoke with 17 former and current employees on the team.

When should a car begin braking at a stop sign when it's snowing outside? When should it turn on its blinker? How can you tell the difference between a traffic light and a full moon?

These are just some of the questions Tesla's Autopilot team deals with on a daily basis.