https://scisummary.com can get you pretty deep dives on individual papers. I've always found that these document search engines that are "AI-powered" just can't stand up to hand picking articles myself. Also, these are only open access papers, so anything behind a paywall will just be straight up missing.
Our main focus is a little different to SciSummary actually. We're focussed on understanding researchers broader workflows, and providing a research assistant (i.e. rather than a particular narrow tool for summarisation or search).
The workflows we're most excited about at the moment are literature and systematic reviews: we think we can make these orders of magnitude faster and higher quality.
