The YOLO (You Only Look Once) model is a real-time object detection algorithm that can detect and localize multiple objects in an input image. Unlike traditional object detection models that rely on region proposals and multiple stages, YOLO directly predicts the bounding boxes and class probabilities for all objects in a single pass through the network. This makes it extremely fast and efficient, making it suitable for real-time applications such as robotics, autonomous driving, surveillance, and more.