INFORMATION PROCESSING DEVICE

An information processing device includes an input device and an artificial intelligence processing unit including a processor. The input device is configured to input first information related to at least one of a state of a human-powered vehicle, a rider of the human-powered vehicle, and an environment of the human-powered vehicle. The artificial intelligence processing unit is configured to generate second information related to a recommended travel condition of the human-powered vehicle in accordance with the first information received from the input device.