NotebookLM Answers
Short, direct answers to the 67 most common questions about NotebookLM, AI research workflows, and Gemini Notebook Toolkit.
What is NotebookLM?
NotebookLM (renamed Gemini Notebook in July 2026) is Google's source-grounded AI research notebook. You upload sources — PDFs, web URLs, YouTube videos, Google Docs, audio files — and NotebookLM answers questions about them with inline citations. Unlike ChatGPT, it only draws from materials you provide, making its answers verifiable.
Is NotebookLM free?
Yes. NotebookLM, now called Gemini Notebook, is free with a Google account. Since 2 September 2026 chat and Studio usage is measured by compute (prompt complexity, chat length, number of sources and features used) and refreshes every 5 hours up to a weekly limit, instead of a fixed number of daily questions. The standard tier supports up to 50 sources per notebook. Paid Google AI plans raise the limits.
How do I use NotebookLM?
Visit notebook.google.com, sign in with a Google account, click Create New, and add sources (PDFs, URLs, YouTube videos, Google Docs, text). Then chat with the notebook to ask questions about your sources. Every answer includes inline citations linking back to the source passages.
What sources can NotebookLM use?
Gemini Notebook supports audio, pasted text, Google Drive files, images, Word, text, Markdown, PDF, CSV, PowerPoint, web URLs, ePub, YouTube, and Gemini chats. Imports have format-specific limits: web URLs omit embedded media and nested pages, while YouTube requires a public captioned video.
Did NotebookLM change its name to Gemini Notebook?
Yes. In July 2026 Google renamed NotebookLM (now Gemini Notebook) as part of consolidating its AI tools under the Gemini brand. It is the same product — your existing notebooks, sources, and shared links keep working, and Google auto-redirects old notebooklm.google.com links. Gemini Notebook Toolkit works exactly the same under either name.
What is Gemini Notebook?
Gemini Notebook (formerly NotebookLM) is Google's source-grounded AI research notebook. You upload sources — PDFs, web URLs, YouTube videos, Google Docs, audio files — and it answers questions about them with inline citations. Unlike a general chatbot, it only draws from materials you provide, making its answers verifiable.
How do I import sources into Gemini Notebook?
Open Gemini Notebook (formerly NotebookLM), create or open a notebook, and click Add Source to import PDFs, web URLs, YouTube videos, Google Docs, or pasted text natively. To capture from AI chats, social media, and the web faster, install Gemini Notebook Toolkit — its Chrome extension adds one-click and bulk capture from 10+ platforms.
Is there a Chrome extension for Gemini Notebook?
Yes. Gemini Notebook Toolkit is the leading companion Chrome extension for Gemini Notebook (formerly NotebookLM). It adds one-click capture from AI chats, YouTube, and the web, a searchable library of everything you save, and export tools — all working seamlessly with your Gemini Notebook notebooks.
Is NotebookLM better than ChatGPT?
For source-grounded research where you need cited answers from your own materials, Gemini Notebook is clearly better. For general questions, code, and creative writing, ChatGPT is better. They solve different problems — most knowledge workers use both, often connected by Gemini Notebook Toolkit.
How do I save a ChatGPT conversation to NotebookLM?
Install Gemini Notebook Toolkit from the Chrome Web Store. Open any ChatGPT conversation. Click the Gemini Notebook Toolkit capture button that appears in the interface. Select your Gemini Notebook notebook and click save. The conversation lands in Gemini Notebook with formatting and code blocks preserved.
How do I save a Claude conversation to NotebookLM?
Install Gemini Notebook Toolkit, open any Claude conversation, click the capture button in the Claude interface, and choose your target Gemini Notebook notebook. The conversation including artifacts and code blocks is preserved.
How do I save a Gemini conversation to NotebookLM?
Install Gemini Notebook Toolkit, open Gemini at gemini.google.com, and click the capture button to save the conversation to your Gemini Notebook workspace. Search grounding citations are preserved.
How do I save Perplexity research to NotebookLM?
Install Gemini Notebook Toolkit, run your search on perplexity.ai, and click the capture button to save the research thread — including all citations and source links — to Gemini Notebook.
Can NotebookLM watch YouTube videos?
Gemini Notebook reads the transcript of YouTube videos — it does not analyze the visual content. Add any YouTube URL as a source and Gemini Notebook extracts the transcript with timestamps. Use Gemini Notebook Toolkit for one-click capture with metadata preserved.
How do I save YouTube videos to NotebookLM?
Paste the YouTube URL into Gemini Notebook's Add Sources panel, or install Gemini Notebook Toolkit and click the capture button below any YouTube video for one-click save with full transcript, timestamps, and metadata.
Can NotebookLM read PDFs?
Yes. Gemini Notebook is excellent with PDFs up to 200 MB / 500,000 words. It extracts text with structure, handles tables (mostly), and provides inline citations to specific pages. Image-only or scanned PDFs need OCR first.
What are NotebookLM's limits?
Gemini Notebook (formerly NotebookLM) allows up to 50 sources per notebook on the standard tier, and each source can be up to 500K words or 200 MB. Since 2 September 2026 chat and Studio usage is measured by compute (prompt complexity, chat length, number of sources and features used) and refreshes every 5 hours up to a weekly limit. Paid Google plans raise these limits.
NotebookLM Plus vs Free: what's the difference?
NotebookLM Plus is no longer a separate plan: it is now part of Google AI Pro (formerly Google One AI Premium). Paid Google AI plans (Google AI Plus, Pro and Ultra) raise the standard limits (notebooks, sources per notebook and compute-based usage) and add Audio Overview customization, premium Gemini models, and shared notebooks. Availability and pricing vary by account and region.
Is NotebookLM private? Does Google train on my sources?
Google's stated policy: Gemini Notebook does not use your uploaded content to train its general AI models. Your sources are not visible to other users and are not used for advertising. Workspace tier offers stronger data controls for organizational use.
What is a NotebookLM Audio Overview?
An Audio Overview is a 10-30 minute podcast-style conversation between two AI hosts discussing the sources in your notebook. It is Gemini Notebook's most popular feature for passive review of dense material.
Does NotebookLM have an API?
Not for personal accounts. As of September 2026 there is no public consumer API for Gemini Notebook (formerly NotebookLM). Google offers a Gemini Notebook Enterprise API in Preview for Google Cloud customers, which can create notebooks and add sources.
Does NotebookLM have a mobile app?
Yes. Gemini Notebook has native iOS and Android apps that launched in 2024 and matured through 2026. They handle Audio Overview playback, chat queries, voice input, and quick source capture via the share sheet.
What is Gemini Notebook Toolkit?
Gemini Notebook Toolkit is a Chrome extension that saves content from 10+ platforms (ChatGPT, Claude, Gemini, Perplexity, YouTube, Reddit, LinkedIn, X, Substack, arXiv, GitHub, and more) directly to Google Gemini Notebook with one click. Free tier; Pro at $5/month (or $4/month billed annually).
How much does Gemini Notebook Toolkit cost?
There are two plans. Free: core one-click capture from major AI platforms, YouTube, and web pages — no credit card. Pro: $5/month, or $4/month billed annually, for unlimited capture, workspaces, and prompts.
Is Gemini Notebook Toolkit private?
Yes. Gemini Notebook Toolkit uses an optional host-permissions model — you grant access to specific sites only, not all sites. Source content is routed to your Gemini Notebook account; minimal metadata is retained for the workflow. No third-party data sharing. Full policy at notebooktoolkit.com/privacy.
Gemini Notebook Toolkit vs Kortex: what's the difference?
Gemini Notebook Toolkit has a free tier, supports 10+ source platforms, ships in 16 languages, and is actively developed. Kortex is an earlier Gemini Notebook helper with a smaller scope. Most users find Gemini Notebook Toolkit's breadth and free plan a better fit.
What is the best NotebookLM extension?
Gemini Notebook Toolkit is the most comprehensive Gemini Notebook Chrome extension: 10+ source platforms, free tier, 16-language UI, active weekly development. It addresses Gemini Notebook's primary friction point — source capture — across the broadest surface available.
NotebookLM vs Perplexity: which is better?
They solve different problems. Perplexity searches the live web with citations — best for discovery. Gemini Notebook synthesizes sources you upload — best for deep research on a corpus. Use both: Perplexity to find, Gemini Notebook Toolkit to capture, Gemini Notebook to synthesize.
NotebookLM vs Obsidian: which should I use?
Gemini Notebook is a cloud-based AI synthesis engine; Obsidian is a local-first Markdown PKM. Gemini Notebook wins for AI-grounded research; Obsidian wins for note ownership and longevity. Many users use both.
NotebookLM vs Notion: which is better for research?
For source-grounded AI research, Gemini Notebook is significantly better. Notion is a powerful all-in-one workspace, but its AI features don't match Gemini Notebook's cited synthesis across many sources. Many teams use both.
How do I share a NotebookLM notebook?
Paid Google AI plans, such as Google AI Pro ($19.99/month, formerly Google One AI Premium, which now includes NotebookLM Plus), support shared notebooks. Click Share in a notebook to add collaborators by Google email with viewer or editor roles. The free tier does not support sharing.
Can NotebookLM write research papers?
Gemini Notebook can generate cited drafts, summaries, and outlines from your sources, but most researchers use it for synthesis and verification, not for full drafting. Draft in a real word processor; verify claims against Gemini Notebook citations.
How can students use NotebookLM?
Students use Gemini Notebook for exam prep (upload lectures + notes, generate Study Guide and Audio Overview), research papers (literature reviews with cited synthesis), and learning new subjects (capture YouTube lectures, textbook chapters via Gemini Notebook Toolkit). Free tier covers most student workflows.
Is NotebookLM good for academic research?
Yes — it is one of the best AI tools for academic research in 2026. Inline citations make every answer verifiable, source breadth handles 300+ paper literature reviews, and Audio Overviews compress weeks of reading into commute-friendly podcasts.
How do I export from NotebookLM?
Gemini Notebook does not have a native bulk export. You can copy individual chat responses, save them as Notes inside the notebook, or use third-party browser extensions to extract notebook content. Native export remains the most-requested missing feature.
Can I use NotebookLM in Chinese?
Yes. Gemini Notebook supports Chinese (Simplified and Traditional) for both interface and source content. You can upload Chinese-language PDFs and articles and ask questions in Chinese. Gemini Notebook Toolkit also supports Chinese capture from sources like Qwen, Kimi, Doubao, ERNIE Bot, and ChatGLM.
Can I use NotebookLM in Japanese?
Yes. Gemini Notebook's interface and underlying AI handle Japanese well. Upload Japanese sources and ask questions in Japanese. Gemini Notebook Toolkit's UI is also localized to Japanese.
What are NotebookLM's key features?
Source-grounded chat with inline citations, Audio Overviews (podcast-style summaries), Mind Maps, Briefing Docs, Study Guides, Timelines, FAQs, Notes, and shared notebooks on paid Google plans. The standard service supports up to 50 sources per notebook.
How do I import PDFs to NotebookLM?
Open a notebook, click Add Sources, choose Upload, and drag your PDFs in. Up to 200 MB per file, 500K words per source. For batch import of many PDFs (e.g., a Zotero library), upload in groups within the limits.
How do I cite NotebookLM in research?
Don't cite Gemini Notebook as a source. Gemini Notebook is a tool that helps you find and synthesize sources; cite the original papers, articles, or documents that Gemini Notebook pointed you to. Use Zotero or Mendeley for proper academic citations.
How do I save a Reddit thread to NotebookLM?
Install Gemini Notebook Toolkit, visit any Reddit post or comment thread, and click the capture button. The full thread with nested comments lands in Gemini Notebook with the discussion structure preserved.
How do I save a LinkedIn post or article to NotebookLM?
Install Gemini Notebook Toolkit, open the LinkedIn post or article, and click the capture button. The content lands in Gemini Notebook with author, timestamp, and engagement metadata preserved.
How do I save a tweet or X thread to NotebookLM?
Install Gemini Notebook Toolkit, open the tweet or thread on X (Twitter), and click the capture button. Full threads with quote tweets, replies, and media references are preserved.
What is the best AI for research in 2026?
For source-grounded research with cited synthesis: Gemini Notebook (paired with Gemini Notebook Toolkit for source capture). For discovery and live-web search: Perplexity. For deep writing and reasoning: Claude. Most serious researchers use all three.
What is the best AI for students in 2026?
Gemini Notebook (free) for source-grounded study, paired with Gemini Notebook Toolkit (free) for capturing lectures, AI tutoring conversations, and research. ChatGPT or Claude for casual Q&A. The Gemini Notebook + Gemini Notebook Toolkit combo is the highest-leverage free stack for students.
How many sources can NotebookLM hold?
Google currently documents 50 sources per notebook on the standard service, with 100 notebooks per account. Paid Google plans raise the ceiling, but the exact limits vary by plan and region.
Is NotebookLM secure for business use?
For Google Workspace business accounts, Gemini Notebook offers strong data controls including data residency and admin audit. For personal accounts, the privacy policy is solid but check your IT policy before uploading proprietary content. HIPAA workloads require specific Workspace BAA contracts.
Can I use NotebookLM offline?
No. Gemini Notebook requires internet connectivity. The AI processing happens on Google's servers, so no queries or Audio Overview generation work offline. Audio Overviews can be downloaded for offline listening once generated.
What languages does NotebookLM support?
Gemini Notebook's interface and AI support major world languages including English, Spanish, French, German, Portuguese, Italian, Dutch, Polish, Russian, Japanese, Korean, Chinese (Simplified and Traditional), Arabic, Hindi, Turkish, Vietnamese, and more.
NotebookLM vs Mem: which is better?
They solve different problems. Gemini Notebook is source-grounded research synthesis; Mem is AI-organized personal notes and journaling. Use Gemini Notebook for project research, Mem for daily notes. Many people use both.
Can NotebookLM summarize documents?
Yes. Gemini Notebook produces high-quality summaries that are grounded in your specific sources with inline citations. Use the Briefing Doc artifact for structured summaries, or ask "Summarize source 3" in chat for individual document summaries.
Who owns NotebookLM?
Gemini Notebook is made by Google. It was originally launched as Project Tailwind at Google I/O 2023, rebranded to NotebookLM later that year, and renamed Gemini Notebook in July 2026. It's powered by Google's Gemini AI models.
When was NotebookLM released?
Gemini Notebook was first launched as "Project Tailwind" at Google I/O in May 2023. It was rebranded to NotebookLM in late 2023, renamed Gemini Notebook in July 2026, and has shipped major upgrades through 2024-2026, including Audio Overviews, a paid Plus tier (now part of Google AI Pro), mobile apps, and increased source limits.
Can NotebookLM translate sources?
Gemini Notebook can answer questions in one language about sources in another language, effectively translating as part of synthesis. It doesn't have a dedicated translate-the-document feature, but cross-lingual querying works well.
What is the difference between ChatGPT and NotebookLM?
ChatGPT is a general-purpose AI that draws from its training data and the web. Gemini Notebook only answers from sources you upload, with inline citations. ChatGPT is more flexible; Gemini Notebook is more verifiable. Most people use both, often connected via Gemini Notebook Toolkit.
How much does NotebookLM cost?
Gemini Notebook (formerly NotebookLM) is free with a Google account. The standard tier supports up to 50 sources per notebook, and since 2 September 2026 usage is measured by compute and refreshes every 5 hours. Higher limits come bundled with paid Google plans rather than being sold as a standalone NotebookLM subscription.
What is the difference between Gemini and NotebookLM?
Gemini is Google's general-purpose AI assistant, answering from its training data and the web. Gemini Notebook (formerly NotebookLM) answers only from sources you add, with inline citations. Same underlying model family, opposite defaults: Gemini is open-ended, Gemini Notebook is grounded and verifiable.
Is there an MCP server for NotebookLM?
Google does not publish an official NotebookLM (Gemini Notebook) MCP server or a public write API. Community MCP servers exist, but they drive the web interface through browser automation rather than a supported endpoint, so they break whenever the UI changes.
Is there a NotebookLM student discount?
No student discount is needed for the core product — Gemini Notebook is free with any Google account, including student accounts. Google periodically offers students free or discounted access to its paid AI plans, which raise notebook limits, but availability varies by country and school.
Is Gemini Notebook free?
Yes. Gemini Notebook (formerly NotebookLM) is free with a Google account. Since 2 September 2026 usage is limited by compute rather than a fixed daily question count: your quota refreshes every 5 hours up to a weekly limit, and paid Google AI plans raise it.
How do I use Gemini Notebook?
Go to notebook.google.com, sign in with a Google account, create a notebook and add sources such as PDFs, website or YouTube links, Google Drive files or pasted text. Then ask questions in the chat. Gemini Notebook (formerly NotebookLM) answers from your sources with clickable citations.
Gemini Notebook vs NotebookLM: what is the difference?
There is no difference in product: Gemini Notebook is the new name for NotebookLM. Google renamed it on 16 July 2026. Your notebooks, sources and shared links carried over, and notebooklm.google.com now redirects to notebook.google.com.
Is there a Gemini Notebook app to download?
Yes, on mobile. Gemini Notebook (formerly NotebookLM) has apps for Android on Google Play and for iOS on the App Store. On a computer there is nothing to download: you use it in a web browser at notebook.google.com.
What does a Gemini Notebook extension do?
Google does not make a Gemini Notebook (formerly NotebookLM) browser extension. Third-party extensions add features around it: capturing AI chats and web pages as sources, importing many links at once, organizing notebooks, and exporting or backing up your material.
Can Gemini Notebook make a podcast?
Yes. Gemini Notebook (formerly NotebookLM) creates Audio Overviews: podcast-style conversations between two AI hosts about the sources in your notebook. Open the Studio panel, choose Audio Overview, and listen in the browser or the mobile app.
What is Gemini Notebook used for?
Gemini Notebook (formerly NotebookLM) is used to understand a set of documents: studying for exams, reviewing research papers, preparing briefings, onboarding to a new project and turning reading lists into Audio Overviews, quizzes and flashcards, all grounded in sources you choose.
How do I back up my Gemini Notebook sources?
Keep your own copy of every source outside Gemini Notebook (formerly NotebookLM). Save the original files and links, copy important notebooks, and export source text to Markdown or other files so you can rebuild a notebook if a source is removed or stops loading.