Lumo
ExternalLumo is a privacy-first AI assistant from Proton, delivering end-to-end encrypted conversations with zero server logs and no use of chats for model training. It excels in secure handling of sensitive tasks like legal reviews, health queries, and document analysis, supported by file uploads, web search, and encrypted Projects for organized workflows. Perfect for privacy-conscious users in the Proton ecosystem who value confidentiality over cutting-edge performance.
Description
Lumo is a privacy-first AI assistant from Proton, delivering end-to-end encrypted conversations with zero server logs and no use of chats for model training. It excels in secure handling of sensitive tasks like legal reviews, health queries, and document analysis, supported by file uploads, web search, and encrypted Projects for organized workflows. Perfect for privacy-conscious users in the Proton ecosystem who value confidentiality over cutting-edge performance.
Key capabilities
- End-to-end encrypted chats
- Zero server logs; Proton cannot access history
- Conversations not used for AI training
- File uploads and web search
- Encrypted Projects workspaces
Core use cases
- 1.Secure chats for sensitive topics (legal, health)
- 2.Document summarization and analysis
- 3.Coding specifications and brainstorming
- 4.Proton Drive file integration and editing
Is Lumo Right for You?
Best for
- Privacy-focused users
- Proton ecosystem users for sensitive workflows
Not ideal for
- Users needing current info or deep research
- High-volume or complex AI needs
- Advanced feature seekers (e.g., image generation)
Standout features
- Ghost mode for ephemeral chats
- Cross-device sync for logged-in users
- Project-specific instructions and context
- Open-source models in European data centers
- Free tier and Plus plan for unlimited access
Pricing
Lumo Plus
Free
Lumo Professional
User Feedback Highlights
Most Praised
- Exceptional privacy guarantees
- Reliable for basic reliable tasks
- Seamless Proton integration
- Transparent open-source base
Common Complaints
- Outdated knowledge (cutoff April 2024)
- Inferior to ChatGPT/Gemini in performance
- Unreliable web search
- Slow on large files, lacks advanced features like image gen