In a world where AI is rapidly becoming mainstream, data privacy remains one of the biggest concerns for users. While Big Tech races to dominate AI with tools like ChatGPT, Google Gemini, Meta AI, and Microsoft Copilot, a new player has emerged to challenge the status quo—Lumo, Proton’s privacy-focused AI chatbot.
Designed with user privacy at its core, Lumo is Proton’s bold entry into the AI space. Known for their encrypted services like Proton Mail and Proton Drive, the Swiss-based company is now pushing the boundaries of secure artificial intelligence. If you’re searching for an AI assistant that respects your privacy, look no further.
🔐 Why Lumo Stands Out: A True Privacy-First AI
Unlike many AI assistants that harvest user data to improve performance or monetize through ads, Lumo guarantees zero-access encryption. This means even Proton can’t see your data—let alone advertisers or government entities.
Here’s what makes Lumo unique:
- Zero-access encryption: Only you hold the encryption key, ensuring no one—not even Proton—can read your content.
- Data stored locally: Lumo processes your information on-device where possible, reducing cloud dependencies.
- No training on user data: Proton makes it clear—Lumo won’t use your conversations to train any AI models.
- End-to-end encrypted chat history: Your past conversations are secure, visible only to you.
🤖 What Can Lumo Do?
Lumo isn’t just private—it’s powerful. Here are some of the standout capabilities of Proton’s AI chatbot:
- ✉️ Write emails with a professional or casual tone.
- 📄 Summarize long documents and PDFs efficiently.
- 💻 Generate and debug code, especially with programming help powered by Nvidia’s OpenHands 32B.
- 🌐 Search the web—when enabled—through privacy-friendly search engines.
- 📁 Analyze uploaded files like spreadsheets or text docs.
- 🔐 Ghost mode: Conversations are automatically deleted once closed, perfect for ultra-sensitive tasks.
Lumo is available on the web, as well as iOS and Android apps, and it even works without an account (with limited access).
🛡️ Lumo vs. Big Tech AI: A Different Approach
While tools like ChatGPT or Google Gemini offer wide capabilities, they also often involve aggressive data collection policies. Lumo challenges this model by:
- Using open-source models only.
- Operating from Proton’s secure European data centers—a region known for strict GDPR-compliant privacy laws.
- Avoiding any partnerships with U.S. or Chinese AI companies.
- Not logging or saving user queries for backend analysis.
This makes Lumo one of the few truly independent AI assistants in the market today.
🧠 What Powers Lumo?
Lumo operates on a blend of open-source large language models (LLMs) to deliver specific responses tailored to your needs:
- 🧑💻 OpenHands 32B (Nvidia) – Best for coding questions.
- 🔍 Mistral Nemo & Mistral Small 3 – General use LLMs with impressive performance.
- 📚 OLMO 2 32B – From the Allen Institute for AI, excels at research and reasoning tasks.
This multi-model infrastructure ensures your queries are handled by the most efficient and specialized AI engine available—all without compromising your privacy.
💼 Who Is Lumo For?
Lumo is ideal for:
- Privacy-conscious individuals who want AI help without sacrificing data security.
- Freelancers and coders seeking a secure tool to write and debug code.
- Students and researchers needing document summaries or quick research assistance.
- Professionals writing sensitive emails, contracts, or reports.
Whether you’re an everyday user or a power user, Lumo offers a level of control and safety that mainstream AI platforms simply don’t.
💸 Pricing: Free vs. Lumo Plus
Lumo offers a generous free tier, but for those who want more power and flexibility, Proton also provides a Lumo Plus plan at $12.99/month.
| Feature | Free Tier | Lumo Plus |
|---|---|---|
| Encrypted chat history | ✅ | ✅ (Extended) |
| File uploads | ✅ (Small files) | ✅ (Large files) |
| Favorites | Limited | Unlimited |
| Number of questions | Limited weekly | Unlimited |
| Ghost Mode | ✅ | ✅ |
With both options, users enjoy zero tracking, no ads, and a truly secure AI experience.
📲 How to Use Lumo
Getting started is easy:
- Visit: https://lumo.proton.me
- Download the App: Available on iOS and Android.
- Start chatting instantly—no account needed!
- For extended features, create a free Proton account or upgrade to Lumo Plus.
You can also connect your Proton Drive to let Lumo securely access your cloud-stored files while maintaining end-to-end encryption.
🌍 Why Europe Matters in the AI Privacy Race
Proton’s European roots are not just symbolic. Being based in Switzerland and hosting servers across the EU, Proton adheres to some of the world’s strictest privacy regulations (like GDPR). This gives users a level of legal protection and transparency far beyond what most American or Chinese AI companies can offer.
“Our vision for Lumo is AI that puts people ahead of profits,” says Andy Yen, CEO of Proton.
This strong stance on user-first AI development aligns with a growing global demand for ethical, transparent, and secure digital tools.
🔮 The Future of AI Is Private
The launch of Lumo is more than just another AI chatbot—it represents a shift in the digital ecosystem where privacy, ethics, and user control take center stage.
As AI becomes more integrated into our daily lives, tools like Lumo set the standard for what responsible AI should look like.
Final Thoughts:
If you’re tired of AI chatbots that mine your data, bombard you with ads, and hide behind closed-source tech, Lumo is the answer. With its focus on privacy, transparency, and open-source values, Proton’s Lumo is not just another chatbot—it’s a movement.
Experience the future of private AI today at https://lumo.proton.me or download the app and take back control of your digital life.
