Humata AI is a neural network designed to work with your files. It can analyze and compare them, and answer questions based on the content. It supports PDF, TXT, DOC, and even YouTube videos.
You can give it a try here: app.humata.ai. The free plan includes basic features, processing of up to 60 pages, and 10 AI queries. No setup is needed — just upload your file and start chatting with it.