Proton Launches Lumo 2.0, Claims It Outperforms Claude Sonnet 4.6
Proton is positioning Lumo 2.0 as a competitive alternative to major AI assistants while maintaining a strict privacy-first architecture that does not record conversations or use user data for training.
Reporting from 1 sources: GIGAZINE.
Proton announced Lumo 2.0 on June 30, 2026, a privacy-focused chatbot AI with image generation, web search, memory functions, and custom assistants. The company reports it scored 51 on the Artificial Analysis Intelligence Index, above Claude Sonnet 4.6's 44. Lumo 2.0 runs on European infrastructure with Swiss privacy protections and zero-access encryption.
Proton, the company behind Proton Mail, released Lumo 2.0 on June 30, 2026. The new model adds image generation and editing, web search with source citations, user-managed memory, and purpose-specific assistants called Custom Lumos. Proton cites the independent Artificial Analysis Intelligence Index, which combines 10 evaluations, to claim Lumo 2.0 Max scored 51, beating Claude Sonnet 4.6's 44. The previous model Lumo 1.4 scored 15 on the same benchmark.
Lumo 2.0 runs on European infrastructure and is protected by Swiss privacy laws and zero-access encryption. The company states it does not record conversations or use user data for model training. The AI is available in a free tier and two paid plans: Lumo Plus at 1,624 yen per month or 14,988 yen per year, and Lumo Professional for corporate teams. Proton says the service has surpassed 10 million users since its initial launch.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.