YouTube is testing new generative AI features that can summarize and categorise comments based on topics and a new conversational tool that can answer questions about the video you are watching. Designed for those who want to know more about the content they are consuming, YouTube has introduced a new conversational AI tool that lets you ask questions about the content and get answers about the video. This feature is available to a limited group of users in the US and will expand to more YouTube Premium members on Android. They are also experimenting with AI-driven comment summarization, categorizing comments into topics to aid creators in engaging with their audience. These features are accessible through YouTube's experimental hub for Premium members who opt-in. Additionally, YouTube is testing a "play something" button on its mobile app for those unsure of what video to watch next.