Perplexity
No reviews yet
Ask a question, get a clear answer with links to where the information came from.
Free · Pro $20/mo
NotebookLM
Google's free research notebook that answers questions only from the sources you give it.
https://notebooklm.google.com
NotebookLM
Google's free research notebook that answers questions only from the sources you give it.
What is NotebookLM?
NotebookLM flips the usual chatbot setup. Rather than answering from the whole internet, it works from the documents you upload, like PDFs, Google Docs, web pages or YouTube videos, and cites where each answer came from.
The feature everyone talks about is Audio Overviews, which turns your sources into a podcast-style conversation between two AI hosts. We were surprised how useful it is for absorbing a dense report on a walk. It can also produce study guides, briefing docs and FAQs from your material.
It's free, which makes it an easy recommendation. Just remember it's only as good as what you feed it, there are limits on how many sources each notebook holds, and the audio hosts occasionally oversimplify.
Best for: Students and researchers working from their own documents
What we like
- ✓ Completely free to use
- ✓ Citations make answers easy to verify
- ✓ Audio Overviews are great for learning on the go
Watch out for
- – Works best only with the sources you upload
- – Caps on sources per notebook
Use cases
- 01
Summarizing a stack of research papers
- 02
Studying for exams from lecture notes
- 03
Listening to a report as a podcast-style recap
Key features
- ✓Answers grounded in your uploaded sources
- ✓Inline citations back to source passages
- ✓Audio Overviews in a podcast format
- ✓Auto-generated study guides and briefings
Pricing
Prices last checked Sep 11, 2026. Spotted an error? Let us know.
Compare NotebookLM with…
User reviews
No reviews yet
Used NotebookLM? Be the first to share your experience.
NotebookLM FAQ
What is NotebookLM used for?+
Google's free research notebook that answers questions only from the sources you give it. Best for students and researchers working from their own documents.
How much is NotebookLM?+
Free
What else is like NotebookLM?+
Have a look at Eightify, Perplexity, Elicit and Consensus.
Alternatives
Tools similar to NotebookLM
Character.AI
No reviews yet
Chat with fictional characters, famous personas or your own creations, just for fun.
Freemium🎲 Fun & Games
Free · c.ai+ $9.99/mo
Duolingo Max
No reviews yet
Duolingo's premium tier adds AI conversations and explanations of where you went wrong.
Free · Max $29.99/mo
Quizlet
No reviews yet
Make or borrow flashcards, then let AI turn your notes into tests and study guides.
Freemium🎓 Education
Free · Plus $7.99/mo