Technology8/21/2025β€’Engadget

The first update for Proton's privacy-focused chatbot offers major performance improvements

The first update for Proton's privacy-focused chatbot offers major performance improvements

Proton, the company behind Proton Mail, has released an updated version of its privacy-focused AI chatbot, Lumo 1.1. The new version offers significant performance improvements across various areas, including a 170% improvement in context understanding, 40% better code generation, and a 200% better ability to tackle multi-step problems. The updated Lumo 1.1 also features a better web search tool, allowing it to provide more accurate answers on current events and reduce hallucinations. Proton has shared screenshots comparing the responses of Lumo 1.1 and 1.0, showcasing the improved formatting and clarity of the new chatbot. As before, all conversations with Lumo are encrypted, and Proton is releasing the code for the iOS and Android apps, allowing the open-source community to verify the company's security credentials. The article originally appeared on Engadget.

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