LLM-powered deep research tools are very useful at finding whether someone has already published on a research question. You could spend days performing keyword searches and traversing citation graphs but still miss relevant pockets of the literature. Semantic search is a genuine improvement here.

As to not trusting the generated text, you’re totally right. That’s why I use it as a search tool but mostly ignore the content of what the LLM has to say and go to the source.