# Lumo

## Kurzbeschreibung
**“Ask me anything. It’s confidential.” - “The AI that respects your privacy”**


**Lumo** is an AI assistant from Proton with a focus on confidentiality, no-logs, and zero-access encryption. 


The tool supports, among other things, research, writing, translations, file analysis, coding assistance, and optional web search; in addition, there are Projects as well as integration with Proton Drive. Proton positions Lumo as a European, privacy-focused alternative to common AI chats.

## Claim
Ask me anything. It’s confidential

## Geeignet für
- Data Analysis
- Data Extraction / Document Analysis
- Email / Communication
- Productivity & Planning
- Programming / Software Development
- Project Management
- Research
- Writing & Editing
- Texts / Content
- Translations
- Knowledge Management / Internal Search

## Kernfunktionen
- Files
- Privacy
- No Training
- No Logs
- Open Source
- Private AI Chat
- Proton
- Research
- Writing
- Encryption
- ZeroAccess
- Summary

## Preismodell
- **free:** Free use with limited access; even without an account, a chat can be started with restricted access.
- **subscription:** **Lumo Plus**
Unlimited chats, extended chat history, unlimited encrypted chat history, search and favorites for previous chats, Ghost Mode, and uploading multiple or large files.

## DSGVO und Datenschutz
**Gesamteinschätzung:** Yes

**Overall assessment of hosting & data: **
Lumo is a managed privacy AI chat assistant from Prot
on. On-premises or private cloud hosting is not publicly documented as a standard option. Positive aspects include no logs, zero-access encryption for stored chats, no training on user chats, a European data protection framework, open-source code, and use without an account with limited access. A critical point is that Lumo is not a full-fledged enterprise AI operating system with central administration, role-based permissions, knowledge databases, or API integration. 


**Conclusion: **

Lumo is very attractive for private individuals and privacy-conscious knowledge workers; for organizations with governance, integration, and DPA requirements, business AI platforms with enterprise contracts are better suited.


[Data Processing Agreement](https://proton.me/legal/dpa)

**GDPR assessment:** From a GDPR perspective, Lumo is well suited for private and privacy-conscious use. 


**Positive **is that Proton positions Lumo as a European service subject to the GDPR, which does not use chats for training purposes, keeps no logs of questions and answers, and protects stored chats with zero-access encryption. According to Proton, Lumo is also open source, making the code verifiable. 


**Negative** is that Lumo is not primarily positioned as an enterprise platform with a publicly clearly documented DPA/AVV, tenant management, SSO, audit logs, or EU corporate governance. 


**Server location: **Officially described as a European service; a specific data center location is not documented in detail on the official Lumo pages as a binding server region. Further link: Lumo product page, Lumo help, and Proton blog.


[Data](https://proton.me/lumo)


[Privacy Policy](https://proton.me/legal/privacy)

## Hosting und Daten
- **On-Prem / lokales Hosting:** unknown
- **Private Cloud / Rechenzentrum:** teilweise / indirekt
- **EU SaaS / Managed:** abgedeckt
- **Hybrid:** teilweise / indirekt
- **AVV / DPA:** abgedeckt
- **Kein Training auf Kundendaten:** abgedeckt
- **Open-Source / Transparenz-Pfad:** abgedeckt

## Herkunft
**Land:** Switzerland

**Taxonomie:** Switzerland

Proton AG, Route de la Galaise 32, 1228 Plan-les-Ouates, Geneva, Switzerland

## Vorteile
- Very strong privacy positioning: no logs, no use for training, no data sharing, zero-access encryption.
- Guest use possible without an account; with an account, encrypted chat history.
- Open-source app and, according to Proton, open models.
- Useful productivity features such as web search, file analysis, Projects, and Proton Drive integration.
- Business version for teams with admin functions.

## Nachteile
- The free version is functionally limited; Plus is significantly more sensible for more intensive use.
- A publicly verified on-prem/self-hosting option is not available; what is publicly documented is primarily managed SaaS.
- Currently verified file types are limited to documents, spreadsheets, code, and PDFs; images/Proton Docs were most recently only announced as “coming soon.”
- Proton itself points out that answers may be inaccurate for current or very specific topics.

## Quellen
- Offizielle Website: https://proton.me/lumo

## Letzter Datenstand
2026-04-30

## Originalseite
https://kifox.ai/en/ki-tools/lumo-en/