[Google Tests AI Chat-Based Search Feature on YouTube] According to The Verge, Google is testing an experimental AI chat-based search feature on YouTube called 'Ask YouTube,' available exclusively to U.S. YouTube Premium users aged 18 and above. Users can click the 'Ask YouTube' button in the search bar to ask questions in natural language, such as requesting a video summary or a brief history of a topic. The system will first generate a text explanation and a list of key points, then automatically summarize related content from long videos, Shorts, etc., and display it modularly by topic. This feature is currently in experimental testing and is not yet available to all users.