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Dia 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

Dia and Gemini Notebook are both AI Assistants tools. Gemini Notebook scores higher in FinderAtlas's editorial review (8.7 vs 7.8 out of 10), led by value for money. Both have a free plan or trial. Only Dia is available on Windows and macOS. Only Gemini Notebook is available on Web, iOS and Android.

Best overall

Gemini Notebook

  • Students
  • Researchers
  • Educators
  • Analysts

Choose Dia if

  • You want a tool built for asking questions across tabs and connected work apps, summarizing pages and meetings, and organizing many open tabs.
  • Free to download, with a $20 per month Pro plan rather than a mandatory subscription.
  • AI chat can use content from open tabs and connected work apps.

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
Gemini Notebook
Best for business
Gemini Notebook

Features

19 features compared.

  • Chat with your tabs
    Dia
    Available
    Gemini Notebook
    Not available
  • Connected apps
    Dia
    Available
    Gemini Notebook
    Not available
  • Skills
    Dia
    Available
    Gemini Notebook
    Not available
  • Morning Brief
    Dia
    Available
    Gemini Notebook
    Not available
  • Decks and reports
    Dia
    Available
    Gemini Notebook
    Not available
  • Live Work
    Dia
    Available
    Gemini Notebook
    Not available
  • Splits and organized tabs
    Dia
    Available
    Gemini Notebook
    Not available
  • Profiles
    Dia
    Available
    Gemini Notebook
    Not available
  • Privacy controls
    Dia
    Available
    Gemini Notebook
    Not available
  • Dia for Work
    Dia
    Available
    Gemini Notebook
    Not available
  • Source-grounded chat
    Dia
    Not available
    Gemini Notebook
    Available
  • Audio Overviews
    Dia
    Not available
    Gemini Notebook
    Available
  • Video Overviews
    Dia
    Not available
    Gemini Notebook
    Available
  • Study tools
    Dia
    Not available
    Gemini Notebook
    Available
  • Reports, slide decks and infographics
    Dia
    Not available
    Gemini Notebook
    Available
  • Multiple source types
    Dia
    Not available
    Gemini Notebook
    Available
  • Cloud computer
    Dia
    Not available
    Gemini Notebook
    Available
  • Gemini app sync
    Dia
    Not available
    Gemini Notebook
    Available
  • Sharing and public notebooks
    Dia
    Not available
    Gemini Notebook
    Available

Pricing

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

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

Dia plans

  • Free

    $0

    Free download with capped AI usage

    • Full browser
    • AI chat with tab context
    • Skills (limited)
    • Sync

  • Pro

    Most popular

    $20/month

    Individuals who use AI heavily

    • Expanded AI chat and Skills usage
    • fuller personalized memory

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.

Dia
7.8overall
Gemini Notebook
8.7overall

Dia leads in 0 categories and Gemini Notebook in 1.

  • Ease of Use

    Dia
    8.5
    Gemini Notebook
    Not rated

  • Feature Depth

    Dia
    8.0
    Gemini Notebook
    Not rated

  • Value for Money

    Gemini Notebook leads by 1.0
    Dia
    7.5
    Gemini Notebook
    8.5

  • Performance & Speed

    Dia
    7.8
    Gemini Notebook
    Not rated

  • Documentation & Support

    Dia
    7.0
    Gemini Notebook
    Not rated

  • Grounded Citation Fidelity

    Dia
    Not rated
    Gemini Notebook
    8.8

  • Audio Overview Quality

    Dia
    Not rated
    Gemini Notebook
    8.7

  • Source Handling

    Dia
    Not rated
    Gemini Notebook
    8.6

  • Output Formats

    Dia
    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

Dia

Pros

  • Free to download, with a $20 per month Pro plan rather than a mandatory subscription.
  • AI chat can use content from open tabs and connected work apps.
  • Frequent releases: Mac v1.52.0 and v1.53.0 shipped in October 2026.
  • Separate profiles keep work and personal tabs and AI context apart.
  • Dia for Work provides SAML SSO, MDM policies and a SOC 2 Type II examination.

Cons

  • Desktop only; no publicly released iOS or Android app.
  • Windows version is new (v1.0 on October 6, 2026) and trails the Mac version.
  • Free-tier AI usage limits are not published, and the site has no public pricing page.
  • Several workflow features depend on connected work apps and a work-focused setup.

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

Integrations

Dia

8 integrations
  • Google Workspace
  • Slack
  • Notion
  • Microsoft Teams
  • GitHub
  • Atlassian
  • Okta
  • Microsoft Entra ID

Gemini Notebook

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

Company

  • Company
    Dia
    The Browser Company of New York
    Gemini Notebook
    Google LLC
  • Founded
    Dia
    2019
    Gemini Notebook
    1998
  • Headquarters
    Dia
    New York, NY
    Gemini Notebook
    Mountain View, CA
  • Monthly users
    Dia
    Not listed
    Gemini Notebook
    30M+
  • Listing
    Dia
    Claimed
    Gemini Notebook
    Claimed

Frequently asked questions

Is Dia better than Gemini Notebook?

It depends on your workflow. Dia is built for asking questions across tabs and connected work apps, summarizing pages and meetings, and organizing many open tabs. Gemini Notebook is built for summarizing and questioning your own documents.

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

Dia: An AI-native web browser that answers questions across your tabs and work apps. Gemini Notebook: Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources.

Does Dia or Gemini Notebook have a free plan?

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

Which is cheaper, Dia 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.