I don't quite understand what this even means. I both use AI chatbots frequently and still use keyword-based search engines frequently as well. When I use keyword-based search engines, it's usually because I want to see what sort of websites, discussions, resources, online hangouts, etc. exist around a given term, or just how the term is used. I often don't have a specific question or task in mind and just kind of want to wallow in the search results for a while, sort of like if I moved to a new city and just wanted to walk around different neighborhoods. otoh when I use an AI chatbot, it's usually because I have a specific question to ask, and often I don't know what the relevant search terms would even be. The use cases seem fundamentally different and I don't know how one could be "more reliable" than the other.