Your private AI personal assistant
Lumo’s personalization features let you adapt every conversation to who you really are. And because everything you share is zero-access encrypted, what you share with Lumo stays with Lumo.

The AI that gets to know you
Lumo is more than private — it’s personal. Stay in control of your data while getting insights tailored to who you are, what you need, and how you work — so every answer feels more relevant, more useful, and more like you.
Let Lumo know who you are
Share your name, profession, and anything that helps Lumo understand your world — whether it's your role as a graphic designer or your love for dad jokes. The more Lumo knows about you, the better it can tailor its responses.

Choose how Lumo speaks to you
Adapt Lumo's tone to match your preferences, so every conversation feels natural and effortless. Use a professional writing style for work emails, or get warm, supportive advice for pursuing personal ambitions.

Customize Lumo for each task
Get focused guidance for every part of your life. Projects let you switch from analyzing Q4 financials to prepping a new healthy meal plan while ensuring Lumo applies the right context and personalized approach for each job.

Give Lumo the context it needs
Link files from Proton Drive — like project briefs, research notes, or budget spreadsheets — and Lumo will use their content to provide informed responses that truly fit your needs, while keeping your data secure.

What you share with Lumo stays with Lumo
Your personal details are never used for ad profiling, never used to train AI models, and never shared with third parties. Enjoy a personalized AI assistant, knowing you're always in control of your data and how it's used.
The personal AI assistant you can trust
For your eyes only
Thanks to zero-access encryption, your conversations with Lumo can only be read by you or those you share them with. Proton can never see them, and we can't share them with third parties.
Claims you can verify
Unlike other AI assistants, Lumo's code is fully open source, so anyone can verify that it’s private, secure, and that your conversations and data are never used for AI training.
Protected by European law
Built and based in Europe, Lumo benefits from robust privacy protections, subject to GDPR (so you can delete your data anytime), free from Big Tech surveillance, and outside of US jurisdiction.
Frequently asked questions
- Why should I use a privacy-first AI personal assistant?
- How does Lumo AI personalization work?



