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Lumo.

end-to-end encrypted AI chatbot from Proton AG

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About Lumo

Lumo is an online chatbot and personal assistant developed by Proton AG. The service saves chat histories in encrypted storage, and states that it does not employ user data for model training.

Everything about Lumo →

Inception: July 23, 2025
Website: https://lumo.proton.me/

Lumo - end-to-end encrypted AI chatbot from Proton AG