NotebookLM

Google's AI research assistant that grounds answers exclusively in your uploaded sources

Free tier, NotebookLM Plus included in Google One AI Premium $19.99/mo

Overview

NotebookLM is Google's AI-powered research assistant that grounds its responses exclusively in the documents you upload. Unlike general AI assistants that draw from training data, NotebookLM only cites and reasons from your sources — making it ideal for summarizing, cross-referencing, and analyzing a specific body of research or documentation.

Key Features

Source-grounded responses: the AI only references content from your uploaded documents
Supports PDFs, Google Docs, YouTube URLs, audio files, and websites as sources
Auto-generated study guides, FAQs, and briefing documents from your sources
Audio Overview: generates a podcast-style conversation summarizing your material
Mind maps for visually exploring connections across your sources
Shareable notebooks for collaborative research and team knowledge management

Pricing: Free via Google account; NotebookLM Plus included in Google One AI Premium ($19.99/month).

Pros

Grounded exclusively in your sources — no off-topic hallucinations
Audio Overview generates podcast-style summaries of your documents
Supports PDFs Google Docs Slides YouTube videos audio and web pages
Excellent for synthesizing large document sets quickly

Cons

Cannot answer questions outside your uploaded sources
Storage and notebook limits on free tier
NotebookLM Plus requires Google One AI Premium subscription

Product Updates

NotebookLM@NotebookLM

Notebooks in @GeminiApp are now available to Free users on web! Access your personal, unshared notebooks directly in Gemini *and* use your chats with Gemini as sources in new or existing unshared notebooks. Let us know what you think!

1.8KApr 17, 2026View on X ↗

NotebookLM@NotebookLM

Have you ever shared a notebook publicly? Answer this poll and tell us a little more in the replies! What kinds of notebooks have you shared publicly? Or, if you haven't, what's the blocker?

122Apr 15, 2026View on X ↗

NotebookLM@NotebookLM

To celebrate World Quantum Day (one of our favorite events), we're diving into the subatomic deep end. Explore the evolution of quantum research and @Google’s latest breakthroughs in this Cinematic Video Overview. Watch to get the big picture of the smallest particles ⚛️

2.0KApr 14, 2026View on X ↗

NotebookLM@NotebookLM

Notebooks in Gemini is officially rolled out to all Ultra, Pro, and Plus users on web! Have you uploaded a chat from Gemini as a source yet? What do you think?

1.9KApr 9, 2026View on X ↗

NotebookLM@NotebookLM

If you have a feature request or paper cut you want fixed, you just have to keep pushing our buttons. No... really: Introducing new buttons on the audio overview web player for skip and speed controls! We’re working through your wishlists, so keep those suggestions coming✨🫡

1.0KApr 9, 2026View on X ↗

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NotebookLM

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