India, June 24 -- NotebookLM is an amazing tool for research, allowing you to work with any file, website or even a YouTube video. It brings together multiple AI research features in one platform. However, if you're interested in just one specific feature of NotebookLM, here are a few alternatives that I have personally tested.

If you are looking for a service that can replicate the NotebookLM feature to create an AI-powered chat with source files you upload, then try Slider. There are many services on the internet about chatting with PDF files, but this one caught my attention because of its isolated answers.

This service only answers questions related to the PDF files you upload. It refuses to answer any other question unrelated to th...