Lumo, Proton’s privacy-focused AI chatbot, gets an upgrade

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By AI Maestro June 30, 2026 1 min read
Lumo, Proton’s privacy-focused AI chatbot, gets an upgrade

Proton, the privacy-focused software firm, released an updated version of its public AI chatbot, Lumo 2.0, on Tuesday. The new iteration adds image recognition and generation, allowing users to upload photos for analysis or editing. It also expands the Projects widget by introducing persistent memory, enabling the system to recall user preferences across different sessions. Proton states the model responds up to 76 percent faster than the previous version and includes a new thinking mode for complex queries. Andy Yen, the company founder, claims the update proves users do not need to sacrifice privacy for powerful AI features. Public testing suggests Lumo 2.0 matches the utility of major competitors like Gemini and ChatGPT in terms of detail and context. The primary distinction remains its zero-access encryption architecture, which keeps data encrypted in transit and at rest while preventing server-side logging. Proton also promises never to use customer data for training or share it with third parties. The service is available immediately with paid tiers offering additional resources.

  • Zero-access encryption prevents Proton staff from viewing conversation contents
  • No server-side logging of user sessions is retained
  • Customer data is excluded from AI training processes
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