Proton Announces Lumo 2.0

Proton today announced the release of Lumo 2.0, a major update to its privacy-first AI assistant that delivers several new capabilities.

“Lumo 2.0 has been re-engineered from the ground up, and the introduction of thinking mode gives it powerful new capabilities,” Proton founder and CEO Andy Yen says. “User testing demonstrates that the gap has closed to the point that for many use cases, users can no longer perceive a qualitative difference between Lumo 2.0 Max and the latest models from OpenAI and Anthropic. Lumo 2.0 demonstrates that users no longer need to choose between powerful AI capabilities and meaningful privacy protections.”

Proton says that Lumo has gained 10 million users since its July 2025 launch, but this new version should drive even higher adoption rates. Recent controversies surrounding Anthropic and OpenAI and an EU technology sovereignty directive should help as well.

New features and capabilities in Lumo 2.0 include:

• Better reasoning capabilities. Thanks to the latest reasoning models, Lumo 2.0 Lite scores 127 percent higher than Lumo 1.4 on the Artificial Analysis Intelligence Index, while Lumo 2.0 Max scores 250 percent higher.
• Image generation and recognition. New multimodal capabilities let Lumo 2.0 analyze, edit, and generate images, all in the same conversation and with zero-access encryption protection.
• Memory. Combined with encrypted Projects and Custom Lumos, Memory helps provide more in-depth context for more personalized and productive AI workflows.
• Web search with live results and source citations. Lumo 2.0’s web search capabilities now provide more accurate, transparent, and up-to-date answers.

Lumo 2.0 is available in three versions: Lumo Free, with core AI capabilities for everyday private AI; Lumo Plus ($12.99 per month), with unlimited chats, Projects, advanced image generation, and access to Proton’s most capable models; and Lumo Professional ($14.99 per month), which adds advanced capabilities for teams that require secure AI-based collaboration. There’s also a Lumo for Business offering for governments, businesses, and individuals that need to be protected from malicious actors. Lumo for Business is part of Proton Workspace and costs $24.99 per user per month. (There are discounts on all Proton plans when paid annually.)

You can learn more about Lumo on the Proton website.