NOLO next to the other private ones.
Not against the giants that read everything, against the assistants that also take privacy seriously: DuckDuckGo's Duck.ai, Brave Leo, Venice, Proton Lumo and Mistral's Le Chat. What each one does on privacy, what it actually lets you get done, and what it costs.
Where each one stands.
Based on each company's own public documentation as of June 2026. Their terms can change, so check the source if a detail matters to you.
| NOLO | Duck.ai | Brave Leo | Venice | Proton Lumo | Le Chat | |
|---|---|---|---|---|---|---|
| No account or email | Yes | Yes | Yes | Noemail | Noaccount | Noaccount |
| History stays on your device | Yes | Yes | Yes | Yes | Serverencrypted | Server |
| Your raw IP never reaches the model | Yes | Yes | Yes | Partial | Yes | Partial |
| Tells you which model answers | Yesopen-weights | Yes | Yes | Yes | Partial | Partial |
| Real-time web search | Yes | Yes | Yes | Yes | Yes | Yes |
| Image generation | Yes | Yes | No | Yes | Yes | Yes |
| Voice input | Yes | Yes | Partial | Partial | No | Yes |
| Full interface in 30 languages | Yes | Partial | Partial | Partial | Partial | Partial |
| Long context (up to ~1M tokens) | YesPro | Varies | Varies | Varies | Varies | Varies |
| Android app | YesGoogle Play | Yes | Yesbrowser | Yes | Yes | Yes |
| Free tier | Yes€0 | Yes | Yes | Yes | Yes | Yes |
Legend: Yes = supported · Partial / Varies = limited or conditional · No = not offered. Sources: Duck.ai, Brave Leo, Venice, Proton Lumo, Le Chat.
The honest read: several of these are genuinely good, and we're not here to pretend otherwise. Duck.ai and Brave Leo are excellent if you live in their browser or want a quick anonymous question. Proton Lumo encrypts your history on its servers. And to be straight about our side: NOLO does not run frontier models. ChatGPT and Claude are smarter in a raw head-to-head, and if that is what you need, use them. What's specific to NOLO is the combination: no account at all, history that never leaves your device by default, open-weights models we'll name, and the full toolset (search, files, images, voice, live data, exports) in one private workspace, in 30 languages.
Good models. No account. Honest about both.
Try it and see where it lands for your own work.