Overview
- Proton launched Lumo 2.0 on Tuesday, June 30, 2026, rebuilding the assistant on a new architecture that adds image recognition, image generation, editing, and faster reasoning modes.
- The update doubles Lumo’s conversational context window and adds user-controlled memory, encrypted Projects, and Custom Lumos so the assistant can retain preferences and work across sessions.
- Lumo 2.0 includes live web search with source citations to provide more current answers, and Proton says the new models respond up to 76% faster on routine queries while showing a visible "thinking" state for complex tasks.
- Proton reports large company-run benchmark gains for Lumo 2.0 (Lumo 2.0 Lite +127% and Lumo 2.0 Max +240% versus Lumo 1.4) and offers the release in a free tier plus paid Lumo Plus and Lumo Professional plans.
- Proton frames the release as a privacy alternative to major U.S. providers by enforcing zero-access encryption, promising no logging or training on conversations, and keeping business data on independent European infrastructure under Swiss privacy protections.