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Head to head · 2026

Chathub vs Lumo

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Chathub

One question, every answer - compare GPT-5, Claude 4.5, Gemini 3, Grok, and 20+ other models…

3.4Free

Visit Chathub (opens Chathub in a new tab)

Lumo

Proton's privacy-first AI chat assistant with zero-access encrypted chats, open-source code, web search and image generation,…

4.0Free

Visit Lumo (opens Lumo in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: Chathub does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    Lumo

    3.4 against 4.0

  • Same job?

    Yes

    Both are Chatbots tools

Side by side

Compared onChathubLumo
Our rating3.44.0Better
Starts atFreeFree
Free planYesYes
CategoryChatbotsChatbots
PlansFree
  • Free$0
  • Lumo PlusPrice shown at checkout
Key features
  • Side-by-side comparison across GPT-5, Claude 4.5, Gemini 3, Grok, and 20+ models
  • AI image generation via FLUX.2, Stable Diffusion, and Nano Banana
  • File and document analysis with web search integration
  • Code preview built into the chat interface
  • Native apps across web, iOS, Android, Windows, and Mac
  • Zero-access encrypted chat history
  • Web search and small file uploads
  • Proton Drive files and folders as context
  • Image generation, projects and custom assistants
  • Open-source code and apps for iOS and Android
Pros
  • Genuinely broad model access under one subscription instead of many
  • Real, meaningful scale - 300,000+ active users
  • True cross-platform native apps, not just a responsive website
  • Free plan with no card
  • Chats are not used to train models, per Proton
  • Business edition for teams
Cons
  • Free tier is limited compared to the paid comparison breadth
  • Unlimited tier ($39/month) is a real cost for casual users
  • Value depends on actually wanting multi-model comparison rather than one reliable assistant
  • Free plan limits model usage, history and images
  • Plus prices are not shown in the static page and vary by currency
  • Privacy claims rest on Proton's own documentation
CompanyChatHubProton AG, founded 2014

Prices come from each vendor's pricing page, last checked 20260826. Check the vendor before you buy.

FAQ

Questions people ask

Is Chathub better than Lumo?

In our reviews Chathub scores 3.4 and Lumo scores 4.0. The better pick depends on the job. Chathub: One question, every answer - compare GPT-5, Claude 4.5, Gemini 3, Grok, and 20+ other models side by side under a single subscription, used by 300,000+ people. Lumo: Proton's privacy-first AI chat assistant with zero-access encrypted chats, open-source code, web search and image generation, on web, iOS and Android.

Which is cheaper, Chathub or Lumo?

Chathub: free. Lumo: free.

Do Chathub and Lumo have free plans?

Yes, both have a free plan.

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