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Proton Releases Lumo 2.0 as a Zero-Access Multimodal Chatbot

The update pairs image analysis and generation with a mix of open-source models and EU-hosted servers to offer a privacy-first alternative to U.S. cloud AIs.

Illustration des KI-Chatbots Lumo von Proton mit violettem Katzenmaskottchen und Schlossanhänger als Symbol für Datenschutz und Sicherheit.
Lumo 2.0 kombiniert starke KI-Funktionen mit striktem Schutz persönlicher Daten.
Image

Overview

  • Proton released Lumo 2.0 on June 30, 2026, as a public upgrade that is available in free, individual paid and business tiers.
  • Lumo 2.0 adds multimodal features including image recognition and image generation, improved web search, project storage, and user‑configurable custom assistants.
  • Proton says the service uses zero‑access encryption so the company cannot read chats or use them to train models and that Lumo runs on servers hosted in the European Union.
  • The product ships in two model tiers that rely on open‑source models rather than a single proprietary model, with Lumo 2.0 Lite using Qwen 3.5 and Lumo 2.0 Max using GLM‑5.2 according to Proton.
  • Proton published benchmark gains for Lumo 2.0 versus earlier versions but conceded that factual errors still occur in demos, and independent comparisons with ChatGPT, Gemini, and Claude are not yet available.