NotebookLM
Google's AI research assistant that becomes an expert on your documents
Google · Productivity
Launched Jul 2023 (preview); Jun 2024 (GA)
Quick Answer
NotebookLM is google's ai research assistant that becomes an expert on your documents, made by Google. It offers a free tier with paid upgrades. Key uses: Research synthesis, Study notes, Document Q&A.
Last updated:
Users
50M+ Audio Overviews generated (Jun 2025); millions of active users
What is NotebookLM?
NotebookLM is Google's AI-powered research and study tool that lets you upload PDFs, Google Docs, websites, YouTube videos, and audio, then have an AI deeply grounded in those sources answer questions, generate summaries, and even create AI audio podcasts from your material. It only uses your uploaded sources, minimising hallucinations.
What's new in NotebookLM in 2026?
NotebookLM Plus launched (Dec 2024) for paid users; 50-source limit increased; Audio Overview in 50+ languages; Mind Maps feature (2025); YouTube video ingestion; 50M+ audio overviews generated; Google Workspace integration; Study feature for interactive learning
How much does NotebookLM cost?
Free
$0
- 50 sources per notebook
- Audio Overview
- Chat with documents
- Mind maps
- Q&A mode
NotebookLM Plus (Google AI Pro/Ultra)
Included in Google AI Pro ($19.99/mo)
- 5× more notebooks
- 100 sources/notebook
- Premium support
- Shared notebooks
What can you do with NotebookLM?
- Research synthesis
- Study notes
- Document Q&A
- Podcast generation from papers
- Meeting notes
- Literature review
Pros
- Source-grounded (no hallucinations from external knowledge)
- Audio Overview podcast feature
- Free
- Accepts many source types
- Gemini-powered
Cons
- Limited to uploaded sources only
- Not for real-time web
- Sharing/collaboration limited
- 50-source cap per notebook
What are the best alternatives to NotebookLM?
Compare NotebookLM Head-to-Head
Frequently Asked Questions about NotebookLM
How much does NotebookLM cost?
NotebookLM pricing: Free at $0; NotebookLM Plus (Google AI Pro/Ultra) at Included in Google AI Pro ($19.99/mo).
Is NotebookLM free?
NotebookLM offers a free tier with limited usage. Paid plans unlock additional features.
What is NotebookLM used for?
NotebookLM is used for: Research synthesis, Study notes, Document Q&A, Podcast generation from papers, Meeting notes, Literature review.
What are the best alternatives to NotebookLM?
Top alternatives to NotebookLM include Perplexity, Elicit, Consensus, Perplexity AI.
What platforms does NotebookLM support?
NotebookLM is available on: Web.
Details
Vendor
Category
Productivity
Pricing Model
Launched
Jul 2023 (preview); Jun 2024 (GA)
Website
notebooklm.google.comUnderlying Models
Platforms
Integrations
Ideal For
- Researchers
- Students
- Journalists
- Legal teams
- Consultants reviewing documents