Although these tools claim to be able to discover sources, they do not in fact have access to all the sources library databases do. As such, if you choose to use Gen AI tools for literature discovery, it should be in supplement to your library database searching.
Did you know there are many different types of literature reviews? The type you choose to do will depend upon many different factors such as project timeline, scope of your research question, discipline, research methodology, and of course your overall objective!