Proton Rolls Out Lumo 1.1 with Major Performance Boosts and Enhanced Privacy

Key Points

  • Proton launches Lumo 1.1 for free and paid users.
  • Context understanding improves by 170 percent.
  • Code generation capability rises 40 percent.
  • Handling of multi‑step problems increases 200 percent.
  • New web‑search tool offers more accurate current‑event answers.
  • Encrypted conversations with no log sharing.
  • iOS and Android app code released as open source.

The first update for Proton's privacy-focused chatbot offers major performance improvements
Two screenshots comparing the responses generated by Lumo 1.0 and Lumo 1.1.

Two screenshots comparing the responses generated by Lumo 1.0 and Lumo 1.1.

Proton Introduces Lumo 1.1

Proton, the privacy‑centric firm known for Proton Mail, has started distributing Lumo 1.1, the latest iteration of its AI chatbot, to users of both its free and subscription tiers. The company describes the new version as delivering “significantly better” performance across the board compared with the original release.

Performance Gains

The firm cites specific improvements: a 170 percent increase in context understanding, enabling the chatbot to answer questions more accurately when users provide documents or data; a 40 percent boost in the ability to generate functional code; and a 200 percent enhancement in tackling multi‑step problems and selecting the appropriate tools for complex prompts. Proton shared side‑by‑side screenshots that illustrate clearer formatting and more precise answers in the updated model.

Better Answers on Current Events

One area where the first version fell short was providing reliable information about recent news. Lumo 1.1 includes a revamped web‑search capability that Proton says will yield more accurate answers and reduce the frequency of hallucinations—incorrect or fabricated statements—across current‑event queries.

Privacy and Open‑Source Commitment

Consistent with Proton’s privacy ethos, all Lumo conversations remain encrypted, and the company does not retain logs that could be shared with third parties. In addition, Proton is publishing the source code for Lumo’s iOS and Android applications, inviting the open‑source community to audit and verify the security architecture.

Availability

The rollout is ongoing, with both free and paying users receiving the update. While Proton has not disclosed the precise methodology behind its performance metrics, the company emphasizes that Lumo 1.1 delivers a more polished and secure chatbot experience while staying true to its privacy‑first principles.

Source: engadget.com