What Is NotebookLM? How to Use It for Business (2026)

Someone on your team uploaded the operations manual to NotebookLM, asked it a few questions and loved the answers. Now you’re wondering whether the whole company should use it, whether it’s free and what happens to the documents you upload. Here’s what it is, how to use it, what it’s good for at work and where it falls short.

The short answer

NotebookLM is Google’s AI research tool that answers only from the sources you give it, with citations that take you to the exact passage. Since 16 July 2026 it’s called Gemini Notebook, but it’s the same product, and the old address redirects to the new one.
It’s free with a Google account: up to 100 notebooks and 50 sources per notebook. Google’s paid AI plans (Plus, Pro and Ultra) and Google Workspace raise those limits.
For business, it’s best at answering questions about a fixed set of documents: onboarding manuals, internal policies, tender documents, research and meeting prep.
Use a Workspace account for company documents. On Workspace, Google says your data isn’t reviewed by humans or used to train models. Personal accounts work differently.
Its limit is that it only knows what you upload. It doesn’t connect to your ERP or CRM, can’t take actions in your systems and has no per-person permissions across company documents. That takes a custom internal assistant.

What is NotebookLM?

NotebookLM is an AI research assistant from Google, built on its Gemini models. It started life in 2023 as Project Tailwind, and Google says more than 30 million people and over 600,000 organisations now use it.

What sets it apart from ChatGPT or the Gemini app is that it works on the sources you choose. You create a notebook, add your PDFs, documents or links, and the answers come from them, with numbered citations you can click to see the original passage. If the answer isn’t in your sources, it tells you instead of making something up. This is what people mean by AI that is “grounded” in your documents.

NotebookLM is now Gemini Notebook

On 16 July 2026 Google renamed NotebookLM to Gemini Notebook. Your notebooks and sources stayed where they were, and it’s still a standalone product at notebook.google.com. What changed is tighter integration with the rest of Google: you can create and open notebooks from the Gemini app, they sync both ways, and they also appear in AI Mode in Search (in English only, and not in the European Economic Area). We use both names in this guide, because most people still search for NotebookLM.

How does NotebookLM work? Sources and limits

Each notebook is a self-contained space with its own sources. According to Google’s help centre, you can add:

Documents: PDF, Word (.docx), PowerPoint (.pptx), plain text, Markdown, CSV and ePub.
Google files: Docs, Slides (up to 100 slides) and Sheets (with a size cap).
Web and video: web pages by URL and public YouTube videos with captions.
Audio and images: audio files (transcribed on import) and images.
Pasted text and Gemini chats.

Each source can hold up to 500,000 words or 200 MB. Files from Google Drive sync automatically every few minutes; uploaded PDFs and files don’t, so if the original changes you have to upload it again.

Plan	Notebooks	Sources per notebook	Usage (chat, overviews, reports…)
Free (Google account)	100	50	Standard limits
Google AI Plus	200	100	2x standard
Google AI Pro	500	300	4x standard
Google AI Ultra	500	500 or 600	5x or 20x Pro
Google Workspace	Depends on licence	Depends on licence	A core service on most editions; limits rise with the edition and the AI add-ons
Gemini Notebook Enterprise (Google Cloud)	500	300	For organisations that need data residency and advanced controls

Google says these limits are subject to change. Usage runs in rolling cycles: when you hit the cap it refreshes after a few hours, with a weekly ceiling on top. You can check yours under Settings > Usage.

Key features

Chat with your sources, with citations in every answer. You can choose which sources in the notebook it uses.
Audio Overviews: a podcast generated from your documents, in four formats: Deep Dive (two hosts), The Brief, The Critique and The Debate. Available in more than 80 languages; Interactive mode, where you join the conversation, is English-only.
Video Overviews: videos made from your material, in three formats: Explainer (narrated slides), Short (about 60 seconds) and Cinematic (English-only).
Mind maps to see how the topics in your sources connect.
Reports, study guides, flashcards, quizzes, infographics and slide decks generated from your sources.
Notes you save inside the notebook.
Discover sources: ask it to search the web for sources on a topic and add them to the notebook.
Sharing: as a viewer (read-only) or editor (can add and remove sources), in a chat-only view, or publicly by link (personal accounts only; it’s turned off for Workspace Enterprise and Education). Share a notebook with at least four other people and you get analytics on users and queries per day.
Data analysis with code: since the rename, each notebook gets a “secure cloud computer” that runs code on your sources. It’s rolling out first to the top paid plans and Workspace customers with the AI Expanded or Ultra add-ons.

Is NotebookLM free?

Yes. Anyone with a Google account can use it free at notebook.google.com or in the Android and iOS apps, with standard limits: 100 notebooks and 50 sources per notebook. For most individual use, that’s plenty.

Google’s paid consumer plans (Google AI Plus, Pro and Ultra, which replaced the old NotebookLM Plus) raise the limits and add features. Prices vary by country and change often, so check Google One’s AI plans page before you decide.

For businesses, Gemini Notebook is included in most Google Workspace plans as a core service, like Gmail or Drive, with more capacity on higher editions and with the AI add-ons. On a few editions, such as Essentials Starter, it’s only an additional service under Google’s consumer terms. There’s also Gemini Notebook Enterprise on Google Cloud, for organisations that need to choose where data is stored (EU or US), use their own encryption keys and sign in through their identity provider (Microsoft Entra ID or Okta, for example). Enterprise notebooks can only be shared inside the organisation’s project, never publicly.

Does NotebookLM work in other languages?

Yes. It works in more than 80 languages, including several variants of Spanish, French and Portuguese. By default it uses your Google account language, and you can change the output language in settings. You can upload documents in one language and ask questions in another, which is useful for international teams. A few features lag behind: Interactive Audio Overviews and the “Longer” audio length are English-only.

How to use NotebookLM, step by step

Go to notebook.google.com and sign in. At work, use your Workspace account, not a personal one (more on why below).
Create one notebook per topic, not one for everything: “Onboarding”, “City council tender”, “HR policies”. The tighter the sources, the better the answers.
Add your sources. Google Drive is best, because those stay up to date. If you upload PDFs, note the version date.
Ask in the chat. Be specific: “How many days of annual leave does someone with three years’ service get?” works better than “tell me about holidays”.
Check the citations. Click each citation number and read the original passage before you rely on an answer for anything important.
Save useful answers as notes and generate what you need: a report, a study guide, an Audio Overview to listen to on the way to a meeting.
Share it with your team as viewers or in chat-only view, so they can ask questions without changing the sources.

How to use NotebookLM for business

These are the uses that work best for small and mid-sized companies, because they’re all about querying a fixed set of documents:

Onboarding new staff. One notebook with the handbook, procedures and FAQs, shared in chat-only view. A new hire asks “how do I book a day off?” and the answer cites the procedure.
Policies and contracts. HR answers questions about the employment agreement, expenses policy or remote-work rules without scrolling through 80 pages.
Tenders and RFPs. Upload the tender documents and annexes, then ask about eligibility requirements, scoring criteria or deadlines. It gets you through the document fast; writing the bid is still your team’s job.
Research and proposals. Market reports, regulations or a supplier’s technical documentation, with a mind map to organise your thinking.
Training material. Turn a manual into study guides, quizzes and flashcards, or an Audio Overview people can listen to.
Meeting prep. Upload the contract, previous minutes and the client’s proposal, and ask for a briefing on the open points.
Internal support. Product spec sheets, so sales and support can answer precisely.

Is NotebookLM safe for company documents?

It depends on the account. Here’s what Google’s documentation says:

On a Workspace account (your company’s, on an edition where it’s a core service or add-on): your uploads, queries and responses aren’t reviewed by human reviewers or used to train AI models. They’re covered by the Google Cloud and Workspace terms, which give you the data processing agreement you need under the GDPR and similar laws.
On a personal Google account: Google says your content isn’t used to directly train its models, unless you send feedback (thumbs up or down). Then it collects the full interaction, a team of human reviewers may read it, and it can be kept for up to three years. A personal account also has no contract with your company and isn’t controlled by your admin.

The practical rule: company documents go in company accounts only. For more on where the major providers process data, see our guide to EU data residency for AI models.

NotebookLM vs ChatGPT Projects vs Claude Projects

All three let you work with a set of documents. The approach differs:

	NotebookLM / Gemini Notebook	ChatGPT Projects	Claude Projects
Focus	Answering only from your sources, with citations	General chat with project files and instructions	General chat with a knowledge base and instructions
Free	Yes, 50 sources per notebook	Yes, with fewer files per project	Yes, up to 5 projects
Citations to the source	Yes, every answer, linked to the passage	Not always	Not always
What it generates	Audio, video, mind maps, reports, quizzes	Text, images, documents	Text, documents, artifacts
Uses general knowledge	No, it sticks to your sources	Yes	Yes
Sharing across a company	With Workspace	On every plan; managed on business plans	On Team and Enterprise plans

If you want to look things up in documents as faithfully as possible, NotebookLM is the best of the three. If you want to draft, analyse and work with those documents as background, ChatGPT or Claude are more flexible. We compare them in depth in ChatGPT vs Claude vs Gemini for business.

The risks of rolling out NotebookLM without a plan

NotebookLM is a good personal tool. The trouble starts when it quietly becomes “the company assistant” without anyone deciding it should:

Confidential documents in personal accounts. This is the most common one. Someone uploads contracts, payroll or customer data to their Gmail account to save time. That data leaves your company’s control with no processing agreement, and one thumbs-up later it may be read by human reviewers. When they leave, the notebooks leave with them.
No per-person permissions across company documents. Anyone with access to a shared notebook sees all of it. You can’t let sales see the price list but not payroll inside the same assistant. So you end up with dozens of scattered notebooks, or worse, one that holds everything and everyone can see.
Sources that go stale. Uploaded PDFs don’t update. Six months on, the assistant quotes last year’s prices or a procedure that no longer exists, with a citation that looks trustworthy.
It only answers from what you upload. It can’t query your ERP, CRM or inbox, so it doesn’t know which invoices are overdue or where an order is. And it can’t act: it won’t create a quote or log a ticket.
No integration with your systems. There’s no way to connect it to your management software or databases, or to control from there who asks what. Only the Enterprise edition has an API, in preview, and it manages notebooks and sources rather than querying your systems.
No oversight. Without a usage policy, nobody knows which documents sit in which notebooks, who shares them or with whom.
It can still be wrong. Citations reduce made-up answers but don’t eliminate them, and Google says so. For legal, HR or financial decisions, someone has to read the source.

Is your team already using NotebookLM with company documents? Tell us how, and we’ll help you put it on a safe footing.

When a company needs more than NotebookLM

NotebookLM falls short when your assistant has to:

Answer with live data from your systems (ERP, CRM, ticketing), not just documents.
Respect who can see what, using the permissions each person already has.
Stay current on its own, always reading the latest version of each document.
Do things, not just answer: create a quote, log an order, open a ticket.
Keep a log of every query on your own infrastructure.

That’s a custom internal assistant: a RAG system (retrieval-augmented generation: the AI searches your documents and data first, then answers from what it finds) with permissions, connected to your tools. We explain it in our guides to local AI and RAG for business and to MCP, the standard for connecting AI to your systems in a controlled way. Building it with a partner who has done it before avoids the expensive mistakes: permissions resolved wrongly, exposed credentials, or a project abandoned halfway.

How we do it at Aitomatik

We work on two fronts, depending on what your company needs:

Training your team to use these tools well. NotebookLM, ChatGPT and Claude deliver far more when people know what to upload, how to ask and what never to put in a personal account. Our AI training for companies includes a clear usage policy and real cases from each department, and covers the AI literacy duty in Article 4 of the EU AI Act.
Building internal assistants connected to your systems, with per-person permissions. For a multi-company group in the Balearic Islands we set up a read-only gateway inside their own network: AI queries their ERP with no ports opened to the internet, everyone sees only what they already could (permissions resolved against Active Directory), credentials never leave the gateway and every query is logged. Then we trained the whole office, department by department.

When something more specific is needed, we build it as custom software with AI, using AI-assisted development to move faster and, for European clients, models processed in Europe with zero data retention and no training.

Frequently asked questions

What’s the difference between Gemini and NotebookLM? Gemini is Google’s general assistant: it answers from what it knows and searches the web. NotebookLM (now Gemini Notebook) answers only from the sources you add, with citations. Since July 2026 you can also use notebooks from inside the Gemini app.

Can I use NotebookLM for free? Yes. The free plan gives you 100 notebooks and 50 sources per notebook, each up to 500,000 words or 200 MB. Paid Google AI plans and Workspace raise those limits.

Is it safe to use NotebookLM? On a Workspace account, Google doesn’t use your data to train models and human reviewers don’t see it. On a personal account, it isn’t used to directly train models, but if you send feedback, human reviewers may read it. For company documents, always use your company account.

What’s the difference between ChatGPT and NotebookLM? ChatGPT is a general assistant that draws on its own knowledge and the web, and can work with files. NotebookLM sticks to your documents and cites every answer, which makes it more reliable for looking things up in manuals or contracts and less useful for drafting from scratch.

What are the limitations of NotebookLM? It only knows what you upload, uploaded files don’t update themselves, it can’t connect to your ERP or CRM or take actions, and a shared notebook has no per-person permissions. It can also still make mistakes, so check the citations.

Want your team to use AI with your documents, safely?

We help you decide which tool fits each job, train your team to use it well and, when an off-the-shelf tool isn’t enough, build the internal assistant connected to your systems. See our AI and automation consulting or book a free call.

Google’s limits, plans and product names change often. Last reviewed: 15 October 2026.

What Is NotebookLM (Now Gemini Notebook), How to Use It at Work, and When a Company Needs Something More