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In the Open

Proton Lumo

An AI assistant from Proton that answers questions, reads documents, searches the web, and creates images.

Operator
Proton AG
Country
Switzerland
Code license
Features
  • Chat
  • Documents
  • Web search
  • Image creation
Platforms
  • Web
  • Android
  • iOS
Pricing
Freemium

privacy

Basic
  • The service can read messages, earlier messages and files included in a request.
  • Saved history is encrypted with keys that Proton does not have.
  • Proton says requests are deleted after processing and ordinary chats are not used for training.
  • Web search sends a shortened version of your request to external search services.
  • Submitting feedback shares an anonymized prompt and reply. Feedback on Apertus can also be used for training.

Privacy context

Turning off Web search stops sharing with search services. It does not stop Lumo from reading messages when answering. Encryption protects saved history, but earlier messages become readable when included in a request.

Reviewed

Proton Lumo alternatives

Brave Leo

Basic

An AI assistant in Brave Browser that answers questions, summarizes pages and documents, and searches the web.

Confer

Enhanced

An encrypted AI assistant for conversations, documents, web search, and connected services. Review its privacy protections, features, and supported platforms.

Duck.ai

Basic

An AI chat service from DuckDuckGo that lets you choose between models, read PDFs, and create images.

Venice

Enhanced

An AI assistant with several privacy modes for chat, documents, web search, images, and tasks with multiple steps.

what the levels mean

Basic

Limits data collection

Reduces how much personal information is collected, stored or shared. Some information remains accessible to the companies behind the service.

Enhanced

Keeps more information private

Adds technical protections that limit what companies and other parties can access, not just how they promise to use it.

Maximum

Protects your data and identity

Combines strong data protection with measures that make your activity harder to trace back to you.

Protection levels can depend on settings or plans. Read the project's privacy context to get the right level of protection.