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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.
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