I recommend Socrates for document analysis.

It delivers on its promise to deeply analyze documents at an unmatched level.

As a big fan of NotebookLM, I find that Socrates' Deep Dive feature offers a superior depth of insight.

The output from Socrates is impressively accurate and detailed, not the typical verbose responses you might expect from AI tools like ChatGPT.

In my opinion, it’s the most precise tool available for analyzing PDFs on the market.