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Lumo by Proton

Privacy-First AI

Overview

A zero-access encrypted AI assistant by the creators of Proton Mail. Ensures that your chats stay private and are never used for model training.

Lumo is Proton's privacy-first AI assistant, built with the same Swiss-based, zero-access encryption philosophy as Proton Mail, so your conversations stay private and are never used to train models. It offers general assistance — writing, summarizing, answering questions — without the data harvesting of mainstream chatbots. It is a natural fit for existing Proton users.

Key Features

  • Zero-access encrypted chat history
  • No training on your conversations
  • Swiss privacy jurisdiction
  • General-purpose AI assistance
  • Integrates with the Proton ecosystem

Best For

Privacy-conscious users who want a capable assistant without data harvesting.

Pros & Cons

Pros
  • Strong, Proton-grade privacy
  • No training on your data
  • Trusted brand and jurisdiction
Cons
  • Newer than mainstream assistants
  • Best features tied to Proton plans
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Pulse Verdict

The gold standard for private AI. Lumo brings the high security standards of Proton to the world of generative intelligence.

Pricing

Free tier; higher limits with Proton paid subscriptions.

Pricing changes often — confirm current plans on the official site.

Visit Official Website →

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