Without a doubt Petal is the most comprehensively helpful ai for analysing, comparing and paraphrasing multiple papers or websites etc. it’s table feature totally rocks for gathering citations and will answer you]r questions in a table containing your choice of docs - it then mines each uploaded doc for answers to your questions. The multi-doc lit review writer it’s very cool once you get the hang of it’s. Honestly, there are so many things to love in this ai - I’m truly surprised it’s isn’t more widely used … it mines your documents thoroughly and finds all kinds of helpful insights. I use it by preference.