Best Black Friday AI deal: Save more on Lumo Plus
Save on a privacy-first AI assistant
Don't miss out on our biggest sale of the year. Get the best Lumo experience with unlimited chats and premium features, now at 38% off.
1-month
Lumo Plus
High-speed chats and advanced AI features
Unlimited chats
Extended chat history
Unlimited chat favorites
Upload multiple and large files
30-day money-back guarantee
black friday deal
12-month
Lumo Plus
High-speed chats and advanced AI features
Unlimited chats
Extended chat history
Unlimited chat favorites
Upload multiple and large files
30-day money-back guarantee
Your data is always in your control
Enjoy all the benefits of a powerful AI assistant without compromising your privacy. Lumo never keeps any logs of your conversations.
Chat histories are zero-access encrypted so only you can access them.
Your data is never used to train AI models and never shared with third parties.
Lumo is based in Europe, protected by strong privacy laws and free from surveillance.
Trust your data is secure because Lumo is open source. Anyone can inspect our code.
What makes Lumo different
Our approach proves AI can benefit society without compromising your data. See how Lumo compares with other AI assistants.
 Lumo by Proton |  Gemini |  Copilot |  OpenAI |  DeepSeek | ||
|---|---|---|---|---|---|---|
Never uses your data to train AI | ||||||
Does not log your chats | ||||||
Can’t share your data with anyone | ||||||
Has an ad-free business model | ||||||
Based in a high-privacy jurisdiction | ||||||
Opens source code to the public |
Get more done with private AI
Ghost mode
For maximum privacy, enable ghost mode and your conversation will disappear as soon as you close it.
Customization
Tell Lumo to respond in a writing style that feels natural to you, so you can work faster and more smoothly
Proton Drive integration
Easily add and remove end-to-end encrypted files from your Proton Drive to your chats to give Lumo more context.
Web search
If you ask it to, Lumo searches the web for new or recent information to complement its existing knowledge.
Upload files with peace of mind
Lumo analyzes uploaded files without recording data, so all your sensitive documents remain confidential.
Advanced reasoning
Lumo uses open-source models that excel at coding, context analysis, and solving complex, multi-step problems.
Get more than just an AI assistant
Besides Lumo, we offer a full suite of encrypted tools to help you reclaim your online privacy in every aspect of your life. You can include Lumo Plus as an add-on to any plan. Enjoy massive discounts on all Proton products this Black Friday!
What users are saying about Lumo
@recant731
on X
Just got Lumo to help plan out a road trip, with detailed routes and budgets for stays and my car on fuel. @ProtonPrivacy(new window) already had me stoked and now @asklumo(new window) has too.
@banasnap.bsky.social
on Bluesky
Promising premise: a privacy-first AI is exactly what the current landscape was missing. With most services dominated by US and Chinese companies, having a European-based option, from a team already well-versed in online privacy, fills a much-needed gap. Looking forward to trying Lumo.
tintreack
on Reddit
This is pretty awesome, and the mascot is kind of adorable. I really love the branding of this. Also, as a visionary user who has to use ChatGPT for his workflow, thank you. I can finally get rid of that. I've been testing it out, it's pretty great! Nice job team.
Get to know me
- Who is eligible for Lumo Black Friday deals?
- How are the Black Friday discounts calculated?
- What other Black Friday Proton deals are available?
- What happens when my discounted plan ends? What price will my plan renew at?
- Can I pay using Bitcoin?
- How does the 30-day money-back guarantee work?