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NotebookLM

AI Research & Study Assistant

by Google LLC

Google's AI-powered research assistant for understanding documents, summarizing sources, and creating study materials.

Freemium Free plan From $9.99/month
Try NotebookLM Free Watch demo We may earn a commission if you buy through this link. It never changes our rating.

What is NotebookLM?

Google NotebookLM is an AI-powered research and learning assistant that helps users understand information from their own sources. You can add PDFs, Google Docs, websites, YouTube videos, audio recordings, and other supported materials, then ask questions and receive answers grounded in those sources.

Unlike a general chatbot, NotebookLM focuses on the documents and references you select. It can create summaries, Audio Overviews, Video Overviews, mind maps, flashcards, quizzes, and reports. This makes it particularly useful for students, researchers, educators, writers, and professionals who regularly work with lengthy documents.

What users say

NotebookLM is valued for making lengthy documents easier to understand. Users particularly appreciate answers grounded in uploaded sources, citations, Audio Overviews, and study tools. The main concerns are occasional AI mistakes, daily usage limits, and differences between free and paid access.

Pros and cons

Pros
  • Answers questions using your own research sources
  • Includes citations to help verify information
  • Makes long PDFs and documents easier to understand
  • Audio and Video Overviews simplify complex topics
  • Creates useful study guides, flashcards, and quizzes
  • Free plan is useful for everyday research
Cons
  • Answers can still contain mistakes
  • Quality depends on the sources you provide
  • Free accounts have daily usage limits
  • Not a full replacement for live web research
  • Higher usage requires a Google AI subscription
  • Some mobile features differ from the web version
Our verdict

NotebookLM is an excellent choice for anyone who spends a lot of time reading, studying, or reviewing source material. Its strongest feature is the ability to answer questions using selected documents while showing citations that help users check the original information. Audio Overviews, Video Overviews, mind maps, and quizzes make it useful beyond ordinary document summarization.

The free plan is enough for many students and occasional researchers. People who work with larger source collections or generate learning materials frequently may benefit from a paid Google AI plan. However, important facts should still be checked against the original sources, especially for academic, legal, medical, or business decisions.

Who is NotebookLM for?

Students

Helps understand course material and prepare for exams

  • Study guides
  • Flashcards
  • Quizzes
  • Replacing original study material
  • Unverified answers

Plan we would pick: Free

Researchers

Helps analyze papers and organize research sources

  • PDF analysis
  • Citations
  • Deep Research
  • Statistical analysis
  • Guaranteed factual accuracy

Plan we would pick: Google AI Pro

Teachers

Creates learning resources from selected educational materials

  • Audio Overviews
  • Quizzes
  • Study guides
  • Classroom administration
  • Automated grading

Plan we would pick: Free

Bloggers

Helps organize research for well-supported articles

  • Source summaries
  • Research notes
  • Briefings
  • WordPress publishing
  • Keyword tracking

Plan we would pick: Free

Business Analysts

Reviews reports and reference documents

  • Data tables
  • Summaries
  • Document Q&A
  • Financial auditing
  • Business intelligence dashboards

Plan we would pick: Google AI Pro

Content Creators

Converts source information into explainers and learning materials

  • Audio Overviews
  • Video Overviews
  • Slide decks
  • Cinematic video production
  • Social media scheduling

Plan we would pick: Google AI Plus

Enterprise Teams

Uses research workflows with organizational controls

  • Source analysis
  • Collaboration
  • Enterprise data protections
  • Full document management
  • Project tracking

Plan we would pick: Google Workspace

Industry fit

EducationExcellent for studying and preparing learning materials.
Strong fit
98
Academic ResearchUseful for reading papers and organizing references.
Strong fit
96
Content WritingHelps organize research from selected sources.
Strong fit
92
Business ConsultingUseful for reports and document analysis.
Strong fit
90
MarketingSupports research and content planning.
Strong fit
87
PublishingUseful for understanding reference material.
Strong fit
89
Legal ServicesRequires independent verification of legal information.
Conditional
78
HealthcareShould not replace medical expertise or validated clinical research.
Conditional
75
Software DevelopmentUseful for documentation research but not a coding environment.
Conditional
82

Key features

Source-Grounded Chat

Answers questions using selected sources and provides supporting citations.

PDF Analysis

Summarizes and explains uploaded PDF documents.

Google Drive Sources

Imports supported documents from Google Drive.

YouTube Research

Uses transcripts from supported public YouTube videos.

Audio Import

Transcribes supported audio recordings for analysis.

Audio Overviews

Generates conversational audio explanations.

Video Overviews

Creates visual explanations from notebook content.

Mind Maps

Organizes ideas and relationships visually.

Flashcards

Generates revision cards from source materials.

Quizzes

Creates practice questions and learning exercises.

Study Guides

Helps turn research into organized learning resources.

Reports

Produces structured summaries and research reports.

Infographics

Creates visual summaries of information.

Slide Decks

Generates presentation-style materials.

Data Tables

Organizes extracted information into tables.

Fast Research

Discovers relevant sources from the web or Drive.

Deep Research

Conducts broader web research and imports findings.

Notebook Sharing

Shares supported notebooks with collaborators.

Custom Chat

Adjusts chat behavior for specific research needs.

Multilingual Support

Supports many languages across selected features.

NotebookLM pricing

Prices checked October 10, 2026

Free

$0 month

  • 100 notebooks
  • 50 sources per notebook
  • 50 chats per day
  • 3 Audio Overviews per day
  • 3 Video Overviews per day
  • Source citations
  • Flashcards
  • Quizzes
  • Mind Maps
Try Free
Most popular

Google AI Plus

$9.99 month

  • 200 notebooks
  • 100 sources per notebook
  • 200 chats per day
  • 6 Audio Overviews per day
  • Higher usage limits
  • Advanced sharing
Get Plus

Google AI Pro

$19.99 month

  • 500 notebooks
  • 300 sources per notebook
  • 500 chats per day
  • 20 Audio Overviews per day
  • Expanded research limits
Get Pro

Google AI Ultra

Custom month

  • Higher usage limits
  • Premium AI features
  • Expanded notebook capacity
  • Priority access
Get Ultra

Google Workspace

Custom user/month

  • Organization access
  • Workspace administration
  • Enterprise data protections
  • License-dependent limits
Contact Sales

Pricing calculator

Google AI Plus $9.99 / seat, Google AI Pro $19.99 / seat from 1 seats.

Is NotebookLM right for you?

Answer a few quick questions to see our pick.

1 What is your main purpose?
2 How often will you use NotebookLM?
3 How many sources do you need in one notebook?
4 Do you need Audio Overviews?
5 Do you need Deep Research?
6 Do you need enterprise data controls?

How NotebookLM compares

NotebookLM is built around a collection of selected research sources rather than unrestricted general-purpose chat. It combines source-grounded answers, citations, Audio Overviews, Video Overviews, flashcards, quizzes, mind maps, and research workflows in one notebook-based workspace.

CapabilityNotebookLM ChatGPT Perplexity ChatPDF
Source-grounded document Q&A Excellent Yes Yes Excellent
PDF summarization Yes Yes Yes Yes
Source citations Yes Mode-dependent Yes Yes
Audio Overviews Yes Different audio features No equivalent core feature No equivalent core feature
Video Overviews Yes Different video capabilities No equivalent core feature No equivalent core feature
Mind Maps

Integrations

17 integrations listed

  • Google Drive
  • Google Docs
  • Google Slides
  • Google Sheets
  • Google Play Books
  • YouTube
  • Web URLs
  • PDF
  • Microsoft Word
  • Microsoft PowerPoint
  • CSV
  • Markdown
  • EPUB
  • Text files
  • Audio files
  • Image files
  • Gemini

Security, data & support

Security & compliance

  • Google Account AuthenticationSupported
  • Google Privacy PolicyAvailable
  • Workspace Enterprise Data ProtectionAvailable on qualifying plans
  • Enterprise IAM ControlsAvailable on eligible Google Cloud offerings
  • VPC Service ControlsAvailable on eligible enterprise offerings
  • Regional Data HandlingEnterprise configuration dependent
  • SOC 2 Specific to Consumer NotebookLMNot independently verified
  • ISO 27001 Specific to Consumer NotebookLMNot independently verified
  • SAML SSODepends on Workspace identity configuration

Your data, in plain words

  • NotebookLM processes user-provided sources, prompts, and generated responses.
  • Standard account data is not used to train NotebookLM unless feedback is provided, according to Google's current documentation.
  • When users submit feedback, related uploads, queries, and responses may be reviewed.
  • Qualifying Workspace accounts receive additional protections against human review and model training.
  • Eligible Google Cloud enterprise deployments offer IAM, VPC-SC, and additional data controls.
  • Uploaded sources should not contain confidential information unless organizational policies permit it.
  • Users should verify important AI-generated answers against original documents.

Read the privacy policy

Support

  • Help CenterAll usersSelf-service
  • Product FeedbackAll usersNo guaranteed response time
  • Email SupportNotebook usersResponse time not publicly guaranteed
  • Google One SupportEligible subscribersPlan-dependent
  • Google Workspace SupportEligible Workspace usersContract-dependent

API & languages

  • Consumer NotebookLM Public APINot publicly verified
  • General Consumer API DocumentationNot publicly verified
  • Consumer API KeysNot publicly documented
  • Consumer WebhooksNot publicly documented
  • Consumer SDKNot publicly documented
  • Google Cloud Enterprise OfferingAvailable
  • Enterprise IAMSupported on eligible offerings
  • Enterprise VPC-SCSupported on eligible offerings
  • Google Drive Source IntegrationSupported
  • English
  • Marathi
  • Hindi
  • Gujarati
  • Bengali
  • Punjabi
  • Tamil
  • Telugu
  • Kannada
  • Malayalam
  • Urdu
  • Arabic
  • French
  • German
  • Spanish
  • Portuguese
  • Italian
  • Dutch
  • Japanese
  • Korean
  • Chinese
  • Indonesian
  • Vietnamese
  • Thai
  • Turkish
  • Russian
  • Ukrainian
  • Polish
  • Swedish
  • Danish
  • Norwegian
  • Finnish
  • Greek
  • Hebrew
  • Romanian
  • Hungarian
  • Czech
  • Slovak
  • Persian
  • Nepali
  • Sinhala
  • Swahili and more

NotebookLM supports multilingual research and content workflows. Marathi, Hindi, Gujarati, Tamil, Telugu, Kannada, Malayalam, Bengali, Punjabi, and many other languages are supported for audio import. Language availability can differ between the interface, source imports, chat responses, Audio Overviews, and Video Overviews. Users should check feature-specific language availability rather than assuming all features support every language.

NotebookLM FAQs

Is NotebookLM free?

Yes. NotebookLM has a free Standard tier with usage limits.

How much does NotebookLM cost?

Free access is available. Eligible paid Google AI plans start at $9.99 per month in US-listed pricing.

What is NotebookLM used for?

It helps users understand, summarize, and research information from selected sources.

Can NotebookLM analyze PDFs?

Yes. PDF analysis is one of its main features.

Does NotebookLM provide citations?

Yes. It provides citations to supporting source passages where available.

Can NotebookLM create Audio Overviews?

Yes. It can create conversational audio explanations.

Can NotebookLM create Video Overviews?

Yes. It supports visual overview generation.

Can NotebookLM generate flashcards?

Yes. Flashcards are available as a study feature.

Does NotebookLM support quizzes?

Yes. It can create quizzes based on notebook sources.

Can NotebookLM analyze YouTube videos?

Yes. It can import transcripts from supported public YouTube videos with captions.

Can NotebookLM import Google Docs?

Yes. Google Docs are supported sources.

Does NotebookLM support Google Sheets?

Yes. Supported Google Sheets can be imported subject to source limits.

How many sources can free users add?

Standard users can add up to 50 sources per notebook.

How many notebooks can free users create?

The current Standard limit is 100 notebooks per user.

Can NotebookLM research the web?

Yes. Fast Research and Deep Research provide source discovery and research capabilities.

Is NotebookLM good for students?

Yes. It is particularly useful for understanding course materials and creating revision resources.

Does NotebookLM support Marathi?

Yes. Marathi is listed among supported languages for audio import and mobile localization.

Does NotebookLM have a public API?

A general public API for consumer NotebookLM is not verified. Enterprise offerings should be evaluated separately.

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