NotebookLM
FreemiumGoogle · Data & BI
Google’s AI research assistant grounded in your sources
Overview
NotebookLM is Google’s AI research and note-taking assistant that grounds its answers in your own sources — PDFs, Google Docs, websites, YouTube videos, and audio. Upload your material and it builds a private knowledge base you can question, summarize, and turn into study guides. Its signature Audio Overview generates a podcast-style conversation between two AI hosts from your documents, now in 50+ languages. The free tier is generous; NotebookLM Plus ($7.99/mo via Google AI Plus) and Pro tiers raise every limit.
Features & specs
- Free plan
- Yes — generous free tier
- API
- Enterprise (Cloud) only
- Context size
- PDFs, Docs, web, YouTube, audio
- Languages
- 80+ languages (incl. Arabic)
- Mobile app
- iOS & Android apps
- Plugins
- Audio & Video Overviews
Pros
- ＋Answers grounded in your own sources with citations
- ＋Audio Overview turns documents into a podcast (50+ languages)
- ＋Generous free tier — 100 notebooks, 50 sources each
- ＋Supports 80+ languages including Arabic
Cons
- －No public API for individuals (Enterprise/Cloud only)
- －Daily limits on chats and Audio Overviews
- －Tied to the Google account ecosystem
Pricing plans
100 notebooks, 50 sources each, 3 Audio Overviews/day
Doubled limits: 200 notebooks, 6 Audio/Video Overviews/day
Bundled in Google AI Pro — higher limits and extra features