The 2017 Toyota Concept-i featured an artificial intelligence system named Yui.
Yui was Toyota’s nickname for the Concept-i’s onboard AI agent and human-machine interface. Rather than presenting the system as a conventional voice assistant, Toyota imagined Yui as a personalized partner that could learn about the driver and respond through conversation, lighting, sound and other cabin functions.
The Concept-i debuted at the 2017 Consumer Electronics Show in Las Vegas and represented Toyota’s “more than a machine, a partner” vision. Its artificial intelligence was intended to recognize driver preferences and emotional states, then use that information to support safer and more engaging mobility.
Toyota’s later LQ concept developed the same idea further and retained Yui as its interactive AI agent. That connection sometimes causes confusion: Yui is associated with both vehicles, but the trivia question specifically asks about the original 2017 Concept-i. Cortana, Alexa and Siri are real digital assistants, yet they are not the name Toyota gave this concept’s AI system.