NotebookLM
Google's AI research assistant grounded in your uploaded sources. Upload anything (including EPUB ebooks), get expert insights, and turn your documents into Audio Overviews, Cinematic Video Overviews, and more.
What it is
NotebookLM is Google's AI powered research and thinking partner, built with the latest Gemini models and grounded in the information you provide. Unlike general purpose chatbots that draw from their training data, NotebookLM works exclusively with the sources you upload, dramatically reducing hallucinations and ensuring every answer is backed by your actual material. Upload PDFs, EPUB ebook files, websites, YouTube videos, audio files, Google Docs, Google Slides, and more, and NotebookLM becomes a personalized AI expert on your content. Its standout feature is Audio Overview, which transforms your sources into engaging podcast style discussions between two AI hosts, available in 80+ languages. NotebookLM also generates Cinematic Video Overviews (polished, narrative driven video presentations of your notebook content), reports, flashcards, quizzes, mind maps, custom infographics, slide decks, and more. A redesigned sources panel provides a cleaner interface for managing and organizing your uploaded material. Available for free with a Google account, with higher limits through Google AI subscription plans. Trusted by organizations like Deloitte, Shopify, and Arizona State University.
Who it is for
Students who want to turn lecture recordings, textbooks, and papers into study aids like flashcards, quizzes, and Audio Overviews
Anyone who wants to understand complex documents quickly without reading every page
Podcast listeners who enjoy learning through conversation and want their own sources turned into engaging discussions
Researchers and academics who need to synthesize insights across dozens of papers and documents
Professionals preparing for meetings who need fast summaries of reports, proposals, and notes
Content creators looking to repurpose written material into audio, video, and visual formats
Sales and marketing teams who need to quickly master product documentation and competitive research
Teachers and educators creating study materials, quizzes, and interactive overviews for students
Legal and compliance professionals reviewing large document sets with verifiable, cited answers
Organizations that need AI grounded in their own data rather than general internet knowledge
Pros and cons
Pros
- +Source grounded AI dramatically reduces hallucinations; every answer cites exact quotes from your uploaded material
- +Audio Overview is a genuinely unique feature that no competitor matches; turns any sources into natural sounding podcast discussions in 80+ languages
- +Completely free to use with a Google account; no paywall for core functionality
- +Supports a wide variety of source types: PDFs, EPUB ebook files, websites, YouTube videos, audio files, Google Docs, Google Slides, and more
- +Interactive audio mode lets you join the AI host conversation with your voice and ask questions in real time
- +Generates multiple useful output formats from the same sources: Audio Overviews, Cinematic Video Overviews, reports, flashcards, quizzes, mind maps, custom infographics, and slide decks
- +Strong privacy protections; organization data is never used for AI training, and individual data is only used if you explicitly share feedback
- +Trusted by major organizations (Deloitte, Shopify, Arizona State University) with enterprise options via Google Cloud
Cons
- −Primarily designed around your uploaded sources; it can find and suggest new sources, but it is not a general purpose chatbot for open ended questions
- −Source limits on the free tier (50 per notebook) can feel restrictive for large research projects
- −Higher limits require subscribing to Google AI plans ($7.99 to $199.99/mo), which bundle many other Google AI features you may not need
- −Audio Overview can take several minutes to generate and occasionally contains audio glitches or voice switching artifacts
- −Interactive audio mode is currently English only
- −No API available for individual developers; enterprise access requires Google Cloud licensing
- −Public notebook sharing is only available on consumer accounts, not Workspace or Education accounts
Pricing
- Up to 100 notebooks
- Up to 50 sources per notebook
- 50 chats per day
- Up to 200 notebooks
- Up to 100 sources per notebook
- 200 chats per day
- Up to 500 notebooks
- Up to 300 sources per notebook
- 500 chats per day
- 20 Audio Overviews per day
- Up to 500 notebooks
- Up to 500 sources per notebook
- 2,500 chats per day
- Up to 500 notebooks
- Up to 600 sources per notebook
- 5,000 chats per day
- 5x or more generations across all artifact types
- Advanced sharing and collaboration
- Admin controls and user management
Prices change; check the official pricing →