Multio vs Lumo
Multio is the free all-in-one AI chat with 100+ models (10+ free, no credit card). Lumo — privacy-first ai chat by proton — is great for a different audience. Here is the honest head-to-head.
Last updated
Every major model, one app
At a glance
| Multio | Lumo | |
|---|---|---|
| Models | 100+ (GPT-5, Claude, Gemini, Grok, Mistral, Llama, DeepSeek, Perplexity, more) | A curated set of open-source and proprietary models |
| Free tier | 10+ models, no credit card, no daily cap | Free tier with daily message limits; full access requires Proton Unlimited or Lumo Plus. |
| Pricing | Free, then from $8.25/mo | Free → ~$9.99/mo Lumo Plus (or bundled with Proton Unlimited) |
| Mid-chat model switch | Yes — context preserved | Varies / limited |
| New frontier models | Live within hours of release | Days to weeks |
What Lumo does well
Privacy-first AI chat by Proton.
- End-to-end encryption and zero-log architecture by Proton
- EU-hosted, GDPR and Swiss privacy law compliance
- Fits Proton Mail / Drive / VPN privacy stack
Where Multio differs
- Multio also commits to no training on user data — but bundles 100+ models including GPT-5, Claude, Gemini, Grok
- Free tier with 4 open-source models on Multio; Lumo free tier is heavily metered
- File upload, voice, image generation included
- Mid-conversation model switching across providers
Bottom line — pick the one that fits
Pick Lumo if: You are deep in the Proton ecosystem and privacy is your top priority.
Pick Multio if: You want a no-training-on-data privacy posture plus 100+ models including frontier vendors.
Frequently asked questions
- Is Multio a good Lumo alternative?
- Yes. Multio is the free all-in-one AI chat — 100+ models including GPT-5, Claude, Gemini, and Grok, with 10+ free and no credit card required. You want a no-training-on-data privacy posture plus 100+ models including frontier vendors.
- What does Lumo do well?
- Lumo is genuinely strong at: End-to-end encryption and zero-log architecture by Proton; EU-hosted, GDPR and Swiss privacy law compliance; Fits Proton Mail / Drive / VPN privacy stack. You are deep in the Proton ecosystem and privacy is your top priority.
- Is Lumo free?
- Free tier with daily message limits; full access requires Proton Unlimited or Lumo Plus. Multio's free tier covers 10+ models with no credit card and no daily message cap on free models.
- What does Multio offer that Lumo does not?
- Multio also commits to no training on user data — but bundles 100+ models including GPT-5, Claude, Gemini, Grok Free tier with 4 open-source models on Multio; Lumo free tier is heavily metered File upload, voice, image generation included Mid-conversation model switching across providers
- Should I pick Multio or Lumo?
- Pick Lumo if: You are deep in the Proton ecosystem and privacy is your top priority. Pick Multio if: You want a no-training-on-data privacy posture plus 100+ models including frontier vendors.
Searching for the Lumo alternative page instead? It covers the same trade-offs from the alternative-shopping angle.