Which AI (ChatGPT, Claude, etc.) stands out in document analysis compared to others – what is you experience?

Hey redditors,

honestly I’ve been using AI for simple tasks so far and free versions of ChatGPT and Perplexity were more than enough for that.

However, now I need to analyse quite a number of scientific documents (in PDF) and I need the best possible AI model to be able to extract specific data from these documents, summarize, answer my specific questions, etc. Paid version is not a problem for this task. Which model (and possibly a price tier) will you recommend?

Thank you!