FinderAtlas
Sign in

Lumo vs Gemini Notebook

Features, pricing, ratings, and pros and cons, side by side.

Gemini Notebook logo

Gemini Notebook

Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources

Freemium
Visit websiteView details

Verdict

Lumo and Gemini Notebook are both AI Assistants tools. Gemini Notebook scores higher in FinderAtlas's editorial review (8.7 vs 7.6 out of 10), led by value for money. Both have a free plan or trial.

Best overall

Gemini Notebook

  • Students
  • Researchers
  • Educators
  • Analysts

Choose Lumo if

  • You want a tool built for everyday AI chat, web-assisted questions, document and image work without conversation logging or training on user data.
  • Zero-access encryption on saved chats, with a stated no-logging policy.
  • Open-source code and open-source models that can be inspected.

Choose Gemini Notebook if

  • You want a tool built for summarizing and questioning your own documents.
  • Answers cite the uploaded sources, so claims can be checked against the original text.
  • Free Standard tier with 100 notebooks and 50 sources per notebook.
Best for beginners
Lumo
Best for business
Gemini Notebook

Features

18 features compared.

  • Zero-Access Encrypted Chats
    Lumo
    Available
    Gemini Notebook
    Not available
  • Open-Source Models
    Lumo
    Available
    Gemini Notebook
    Not available
  • Web Search
    Lumo
    Available
    Gemini Notebook
    Not available
  • Image Generation and Editing
    Lumo
    Available
    Gemini Notebook
    Not available
  • Projects
    Lumo
    Available
    Gemini Notebook
    Not available
  • Custom Lumos
    Lumo
    Available
    Gemini Notebook
    Not available
  • Proton Drive Integration
    Lumo
    Available
    Gemini Notebook
    Not available
  • Guest Mode
    Lumo
    Available
    Gemini Notebook
    Not available
  • Memory and Personalization
    Lumo
    Available
    Gemini Notebook
    Not available
  • Source-grounded chat
    Lumo
    Not available
    Gemini Notebook
    Available
  • Audio Overviews
    Lumo
    Not available
    Gemini Notebook
    Available
  • Video Overviews
    Lumo
    Not available
    Gemini Notebook
    Available
  • Study tools
    Lumo
    Not available
    Gemini Notebook
    Available
  • Reports, slide decks and infographics
    Lumo
    Not available
    Gemini Notebook
    Available
  • Multiple source types
    Lumo
    Not available
    Gemini Notebook
    Available
  • Cloud computer
    Lumo
    Not available
    Gemini Notebook
    Available
  • Gemini app sync
    Lumo
    Not available
    Gemini Notebook
    Available
  • Sharing and public notebooks
    Lumo
    Not available
    Gemini Notebook
    Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    Lumo
    Freemium
    Gemini Notebook
    Freemium
  • Free plan
    Lumo
    Yes
    Gemini Notebook
    Yes
  • Starting price
    Lumo
    $0
    Gemini Notebook
    $0
  • Plans
    Lumo
    2 plans
    Gemini Notebook
    5 plans

Lumo plans

  • Lumo Free

    $0

    Limited free access, no credit card required

    • Limited Max model usage
    • limited messages and chat history
    • limited image generations
    • 1 Project

  • Lumo Plus

    Most popular

    $12.99/month

    Individuals who want higher limits

    • More Max model usage
    • more messages and chat history
    • more image generations
    • unlimited Projects
    • unlimited Custom Lumos

Gemini Notebook plans

  • Standard

    $0

    Free with a Google Account

    • 100 notebooks
    • 50 sources per notebook
    • Audio Overviews
    • Chat with citations

  • Plus

    $4.99/month

    Through the Google AI Plus subscription

    • 200 notebooks
    • 100 sources per notebook
    • Early access to features
    • 2x higher usage than Free

  • Pro

    Most popular

    $19.99/month

    Through the Google AI Pro subscription

    • 500 notebooks
    • 300 sources per notebook
    • Higher Gemini model access
    • Priority access to new features
    • Watermark removal
    • 4x higher usage than Free

  • Ultra 5x

    $99.99/month

    Through the Google AI Ultra subscription

    • 500 notebooks
    • 500 sources per notebook
    • Highest Gemini model access
    • 5x higher usage limits than AI Pro
    • Cloud computer for code execution

  • Ultra 20x

    $199.99/month

    Through the Google AI Ultra subscription at the higher tier

    • 500 notebooks
    • 600 sources per notebook
    • Highest Gemini model access
    • 20x higher usage limits than AI Pro
    • Cloud computer for code execution

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed November 2026.

Lumo
7.6overall
Gemini Notebook
8.7overall

Lumo leads in 0 categories and Gemini Notebook in 1.

  • Ease of Use

    Lumo
    8.5
    Gemini Notebook
    Not rated

  • Feature Depth

    Lumo
    7.0
    Gemini Notebook
    Not rated

  • Value for Money

    Gemini Notebook leads by 1.0
    Lumo
    7.5
    Gemini Notebook
    8.5

  • Performance & Speed

    Lumo
    7.2
    Gemini Notebook
    Not rated

  • Documentation & Support

    Lumo
    7.8
    Gemini Notebook
    Not rated

  • Grounded Citation Fidelity

    Lumo
    Not rated
    Gemini Notebook
    8.8

  • Audio Overview Quality

    Lumo
    Not rated
    Gemini Notebook
    8.7

  • Source Handling

    Lumo
    Not rated
    Gemini Notebook
    8.6

  • Output Formats

    Lumo
    Not rated
    Gemini Notebook
    8.8

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

Lumo

Pros

  • Zero-access encryption on saved chats, with a stated no-logging policy.
  • Open-source code and open-source models that can be inspected.
  • Permanent free tier with guest access and no credit card.
  • Web, iOS and Android apps.
  • Run by Proton AG, a Swiss company, and stated to comply with GDPR.

Cons

  • Free chat history is kept for only 7 days.
  • Uses open-source models rather than the proprietary frontier models of larger rivals.
  • No desktop app or public API found.
  • Lumo Plus limits are described only as "more" than Free, not as numbers, and the plan costs $12.99/month ($9.99/month billed annually).

Gemini Notebook

Pros

  • Answers cite the uploaded sources, so claims can be checked against the original text
  • Free Standard tier with 100 notebooks and 50 sources per notebook
  • Wide range of outputs, including Audio Overviews, Video Overviews, mind maps, flashcards, quizzes and slide decks
  • Accepts PDFs, websites, YouTube videos, audio files, Google Docs and Google Slides
  • Available on web, iOS and Android, and synced with the Gemini app

Cons

  • Works from the sources you add and is not built for live web news search
  • Higher limits require a Google AI subscription; Ultra starts at $99.99 per month
  • The cloud computer for code execution started with Ultra and Workspace AI Ultra Access customers, with Pro rollout still described as upcoming
  • No public API for the consumer product, and the renamed brand can make older guides and app listings confusing

Platforms

  • Web
    Lumo
    Supported
    Gemini Notebook
    Supported
  • Windows
    Lumo
    Not supported
    Gemini Notebook
    Not supported
  • macOS
    Lumo
    Not supported
    Gemini Notebook
    Not supported
  • iOS
    Lumo
    Supported
    Gemini Notebook
    Supported
  • Android
    Lumo
    Supported
    Gemini Notebook
    Supported
  • API
    Lumo
    Not supported
    Gemini Notebook
    Not supported
  • Browser Extension
    Lumo
    Not supported
    Gemini Notebook
    Not supported

Integrations

Lumo

1 integration
  • Proton Drive

Gemini Notebook

4 integrations
  • Google Docs
  • Google Slides
  • YouTube
  • Gemini app

Company

  • Company
    Lumo
    Proton AG
    Gemini Notebook
    Google LLC
  • Founded
    Lumo
    2014
    Gemini Notebook
    1998
  • Headquarters
    Lumo
    Geneva, Switzerland
    Gemini Notebook
    Mountain View, CA
  • Monthly users
    Lumo
    Not listed
    Gemini Notebook
    30M+
  • Listing
    Lumo
    Claimed
    Gemini Notebook
    Claimed

Frequently asked questions

Is Lumo better than Gemini Notebook?

It depends on your workflow. Lumo is built for everyday AI chat, web-assisted questions, document and image work without conversation logging or training on user data. Gemini Notebook is built for summarizing and questioning your own documents.

What are the key feature differences between Lumo and Gemini Notebook?

Lumo: Privacy-first AI assistant from Proton with zero-access encrypted chats and no logging. Gemini Notebook: Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources.

Does Lumo or Gemini Notebook have a free plan?

Yes, both do. Lumo is freemium and Gemini Notebook is freemium, and each has a free plan or trial.

Which is cheaper, Lumo or Gemini Notebook?

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.