Lumo by Proton
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
Pulse Verdict
Editorial review by SEODataPulse
This is an editorial assessment, not an average of customer ratings.
“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.