Nice job. I have no point of comparison (having never actually used it) - but wasn't this one of the use-cases for Google's NotebookLM as well?

Feedback:

Many times when I'm reading a paper on arxiv - I find myself needing to download the sourced papers cited in the original. Factoring in the cost/time needed to do this kind of deep dive, it might be worth having a "Deep Research" button that tries to pull in the related sources and integrate them into the webpage as well.

Yep, NotebookLM is another flavor. YMMV.

Interesting idea about pulling references. My head goes to graph space...ouch