Notebook LM in practice test: All functions at a glance

With LM notebook Google is launching an AI tool that has so far been under the radar — completely wrongly. Because unlike chatbots such as ChatGPT or Gemini, Notebook LM uses a completely different usage concept: The AI works exclusively with information that users themselves provide.

Whether for study, business or personal projects — Notebook LM proves to be powerful, data-controlled and versatile tool, which can do much more than just summarize texts. In this article, we'll show you what makes Notebook LM so special, for whom it's worth using — and why this AI tool is definitely worth taking a look at.

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What is Notebook LM?

LM notebook (Language Model) is a AI-powered research and note-taking tool, which was developed by Google. The tool combines:

• document management
• Knowledge structuring
• AI-powered analytics
• Text and audio summaries
• Visualizations in the form of mind maps

Unlike classic AI models, Notebook LM is based not on an open Internet connection, but on a curatable knowledge repository: Users define for themselves which sources form the basis of AI work.

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An overview of the tool

Probably the biggest difference to other AI tools: Notebook LM Does not hallucinatebecause it not freely researched on the Internet, but yourself exclusively to the uploaded or linked content supports.

Which sources can be integrated?

• PDF files
• Word documents
• web pages
• YouTube videos
• audio files (such as MP3)
• Your own notes or text modules

This content is then used as a basis for analyses, summaries or interactive research — in a protected data room, which is completely controlled by the user.

Three functions tested in practice — what Notebook LM can really do

Notebook LM impresses in the test with three functions that are particularly suitable for everyday use:

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1. Source-based answers instead of AI fantasies

Notebook LM delivers fact-based answers — because you decide for yourself what the AI can access.

example:
You prepare a presentation on a specific topic, upload relevant studies, articles and your own notes — and can ask the AI specific questions such as:

“What risks does Source XY mention compared to Source Z? ”
“Give me a structured summary of all contributions. ”

The answers are based exclusively on your documents — without advertising links, outdated websites or faulty sources.

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2. Audio summaries as an interactive podcast

Notebook LM can not only summarize content in writing, but also in audible podcasts convert. In doing so, the AI simulates a Dialogue format between two peoplewho talk about the core topics of your content.

advantages:

• Perfect for traveling
• Quick overview without reading
• Entertaining presentation of complex content

The option is also new Video summaries to create — currently in selected languages, including German. This not only makes learning or preparing more efficient, but also much more enjoyable.

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3. Visual mind maps: structure at a glance

Anyone who uses many sources knows the problem: The overview is quickly lost. Notebook LM solves this with automatically created mind maps, which structure, link and visually process content.

What the mind map shows:

• Main topics of the documents
• Relationships between individual points
• Branches and sub-categories
• Interactive click areas for more information

The test shows that this function is ideal for:

• research projects
• Strategy development
• training materials
• Team knowledge management

The mind map works as thought structure — not as decoration. And it's completely interactive.

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Benefits at a glance: Why Notebook LM impresses

Notebook LM is aimed at anyone who works with extensive information — and wants to maintain control over data. The biggest benefits:

• Full data control: You determine what the AI knows
• No “hallucinating” — Answers are based on real sources
• Multi-format compatibility (text, audio, video, web)
• Visual structures instead of deserts of text
• Intelligent search functions within your own content

Notebook LM is therefore particularly suitable for:

• students
• project teams
• Knowledge workers
• trainers
• Editors
• and anyone who has to read, write or explain a lot

Limits & outlook: What is (still) missing

As convincing as Notebook LM is in practical testing, there are currently also restrictions:

• No direct access via European Google accounts yet
• Partially only usable with VPN or workaround
• The range of functions depends on the device (mobile vs. desktop)
• No deep automation (as with agents, for example)
• No API for system integration yet

Still, it's clear: Notebook LM is Not a toy, but a powerful AI tool — with lots of potential for productive work.

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Conclusion: Notebook LM is the underrated secret tip among AI tools

Anyone who believes that all AI tools work the same way will be LM notebook be surprised. The Google tool is based on Clarity, data control, and practical structure — instead of a “promise of omniscience.”

Notebook LM is a real productivity tool, especially for users who work with many sources, prepare content or impart knowledge. And the best part: It is free to use — at least during the test phase.

👉 The KI Company recommends Notebook LM as a complementary tool for anyone who wants their Combine your own knowledge base with AI want — without risk, but with lots of potential.

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FAQ — Common questions about Notebook LM

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What is Notebook LM?‍

An AI tool from Google that accesses its own sources and can therefore summarize, explain and visualize content.

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What is the difference with ChatGPT?‍

Notebook LM only uses user-provided content — not open Internet data. This ensures controlled, fact-based results.

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What can the tool do?‍

Generate answers, create podcasts and videos, structure content (e.g. as a mind map), compare or translate content.

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Is Notebook LM free?‍

Currently yes — in the public test phase.

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Are there any restrictions on usage?‍

Currently only available to a limited extent in the EU. A VPN may be necessary.

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