Proton Lumo — a privacy-first chatbot built on open-source models
Proton Lumo — a privacy-first chatbot built on open-source models Proton launched Lumo, a privacy-focused chatbot built from open-source models. Lumo encrypts conversations, avoids using user data to train models, and integrates with Proton’s ecosystem (Mail, Drive). Proton positions Lumo as a practical, lower-cost alternative to bigger, data-driven assistants. Key points Privacy-first: end-to-end encrypted chats and a no-logs stance; features like Ghost Mode to discard conversations. Open-source models: Lumo stitches together smaller open models (Nemo, OpenHands 32B, OLMO 2 32B, Mistral Small 3) to be resource-efficient and nimble. Pricing: free tier available; paid Plus tier removes limits for $13/month (cheaper than many rivals). Philosophy: Proton argues many users don’t need the largest models — a smaller, well-integrated model can be sufficient for everyday productivity. Targets users who value privacy over…