this post was submitted on 30 Jun 2026
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Proton
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Proton Mail is the world's largest secure email provider. Swiss, end-to-end encrypted, private, and free.
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from the team:
Hi everyone,
We’ve just launched Lumo 2.0, a massive upgrade which has seen our private AI tool rebuilt with reasoning, visual capabilities, memory, customizable AI assistants, and improved web-search. With this release, we have significantly closed the gap in terms of intelligence and capability with the latest and greatest models from OpenAI (ChatGPT) and Anthropic (Claude).
Here's what's new:
Performance
Lumo 2.0 has been rebuilt from the ground up, resulting in a 240% score increase on the independent Artificial Analysis Intelligence Index when comparing Lumo 2.0 Max to Lumo 1.4.
Lumo can now reason through complex, multi-step queries. You can now choose fast or thinking mode, making everyday interactions feel faster while giving complex, multi-step queries additional depth.
Multimodal
Lumo 2.0 is now multimodal. You can:
- Upload and analyze images
- Generate entirely new images from prompts
- Edit existing images
- Turn a rough sketch into finished artwork As with everything in Lumo, this happens while your conversation stays encrypted and inaccessible to anyone else, not even Proton.
Memory
Lumo can now remember context across conversations, learning your preferences over time. You stay in control: you decide what Lumo remembers, what it forgets, and what it never learns to begin with.
We've also doubled the context window, so Lumo can hold longer conversations and reason across longer documents and datasets you provide.
Custom Lumos
You can now build "Custom Lumos", customizable AI assistants that follow your specific instructions every time, so you don't have to set the scene on every new conversation.
Web Search
Web search has been drastically improved, with live results and cited sources. Ask Lumo about current news, live financial data, or the weather, and it can generate brand-new widgets to display the answers.
Privacy None of this comes at the cost of privacy. Lumo 2.0 keeps everything that makes it different to Big Tech’s AI:
- Zero-access encryption, no logs, no data sharing
- Never trains on your conversations
- Fully open source
- Built on European infrastructure, backed by Swiss privacy laws
Lumo 2.0 is live now. Use our Max and Lite model for free. A Professional tier is also available for teams.
Try it → proton.me/lumo
Stay safe, Proton Team
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Is API access on the roadmap?