Lumo AI

Lumo is a privacy-first AI assistant developed by the Proton team, creators of Proton Mail and Proton VPN. Unlike traditional AI chatbots, Lumo guarantees that conversations and data remain confidential, never being logged, sold, or used to train AI models. It uses zero-access encryption so that chats can only be decrypted and read on the user’s own device. Lumo offers helpful AI tools without compromising user privacy or security, making it a trusted choice for anyone concerned about data protection.

Key Features

• Complete privacy with zero-access encryption, ensuring only users can read their chats.
• Open-source code to allow independent verification of privacy and security claims.
• Optional web search using privacy-friendly search engines, disabled by default for maximum privacy.
• Integration with Proton Drive for secure file uploads that Lumo can analyze without storing data.

Use Cases

• Confidential AI assistance for writing, coding, and general queries without data leaks.
• Secure handling and analysis of sensitive files and documents via encrypted file uploads.
• Privacy-conscious users like journalists, activists, and anyone wanting safe AI interaction.