If we're talking about literature search here, the workflow is
1. Get list of sources and their summaries from an LLM.
2. Read through, find a paper who's title and summary seem interesting to you.
3. Follow the LLM's link, usually to an arXiv posting.
4. Read the title and abstract on arXiv. You can now judge the accuracy of the LLM's summary.
It's really easy to tell if the LLM is accurate when it is linking to something which has its own title and summary, which is almost always the case in literature search.