Lumo is a privacy-first AI assistant developed by Proton, designed to provide the benefits of AI without compromising user privacy or data security. It ensures all conversations are fully encrypted, never logged, and never used to train AI models, making it a trustworthy alternative to mainstream AI chatbots.
Key Features
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Zero-Logging & Encryption: Conversations are never stored on servers; chat histories are protected with end-to-end encryption and readable only on users’ devices.
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Open-Source Transparency: Lumo’s code is fully open source, allowing independent verification of its privacy and security claims.
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File Upload & Analysis: Supports encrypted file uploads including from Proton Drive, enabling secure AI-powered analysis without data exposure.
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Privacy Modes: Includes “ghost mode,” which deletes chats immediately upon closing, ensuring no chat history retention unless explicitly saved.
Use Cases
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Private Conversational AI: Safe, confidential interaction with AI for question answering, writing assistance, and problem solving without risk of data leakage.
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Secure Document Analysis: Upload sensitive documents for AI assistance knowing data remains private and inaccessible to third parties.
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Privacy-Sensitive Users: Individuals and organizations seeking AI benefits while avoiding surveillance or data profiling by big tech companies.
