Proton has released Lumo 2.0, describing it as the largest update to its privacy-first AI assistant to date. The company says Lumo 2.0 is rebuilt on a new architecture and adds faster performance and new ways to reason, including “Fast” and “Thinking” modes. Proton claims Lumo 2.0 answers everyday queries up to 76% faster than the prior Lumo 1.4.

Lumo 2.0 also introduces multimodal features. Users can upload images for analysis and can generate or edit images within the same conversation based on prompts or sketches. The update further expands web search capabilities, which Proton says are stronger than in Lumo 1.4.

A “Memory” feature is included to help the assistant learn user preferences, working style, and ongoing context, with Proton stating the context window is twice as large. Proton also adds “Custom Lumos,” which let users create purpose-built assistants for specific tasks.

Lumo is available for free at Lumo.proton.me and does not require a Proton account. With a Proton account, chat history can be saved using “zero-access” encryption across devices. Subscription tiers include Lumo Plus for individual users and Lumo Professional for teams, each with added capabilities and pricing mentioned by the company.