NotebookLM
by Google
FreeGoogle's AI-powered research notebook that lets you upload documents and get AI-generated summaries, Q&A, and audio overviews.
Overview
NotebookLM is Google's AI-powered research tool that lets users upload sources (PDFs, Google Docs, web URLs, YouTube videos, audio files, images) and query them as if speaking to a researcher who has read everything. Every answer is grounded in and cited from your uploaded sources, reducing hallucinations.
By 2026, NotebookLM features Gemini 3 integration, a 1 million token context window, Deep Research mode, Video Overviews, and visual mind mapping that shows connections between concepts across sources. The standout feature is Audio Overviews — AI-generated podcast-style conversations where two AI hosts discuss your material, push back on each other, and explain complex concepts in plain language.
The platform is ideal for students, researchers, analysts, and anyone who needs to synthesize information from multiple documents.
Pricing
- 100 notebooks, 50 sources per notebook, up to 50,000 words per source
- 50 daily chat queries and 3 audio/video generations per day
- Unlocks full NotebookLM potential via Google One AI Premium
- Higher limits on queries and audio generation
- Includes Gemini Advanced (Gemini 3 Pro) and 2TB Google One storage
- Maximum limits on Audio Overviews, Deep Research mode, and all features
- For power users needing extensive research support
- Managed deployment with admin controls
- Volume discounts on annual subscriptions