Proton updates private AI chatbot Lumo to version 2.0 with new capabilities

On June 30, 2026, Proton released Lumo 2.0 — an updated version of its confidential AI assistant with an expanded set of features.

What is Lumo and why is it needed

Lumo is an AI chatbot from Proton, a Swiss company whose reputation is built on confidential services: ProtonMail, ProtonVPN, ProtonDrive, ProtonCalendar. All Proton products are united by one philosophy — encryption by default and minimal data collection. Lumo continues this line, extending privacy principles to the AI sphere.

Unlike ChatGPT, Gemini, or Claude, which operate in the ecosystems of American corporations, Lumo is designed with privacy-by-design: Proton claims it does not use user conversations to train models and does not share them with third parties. The company is based in Geneva under the protection of Swiss privacy legislation — one of the strictest in the world.

Lumo's audience consists of specialists working with sensitive data: lawyers, doctors, journalists, financial analysts, corporate teams in regulated industries. For them, the question is not how intelligent the AI assistant is, but where their requests go.

What changed in Lumo 2.0

According to TechCrunch, Lumo 2.0 offers users a "broader set of features" compared to the first version. The company did not disclose specific functions at the time of publication — a detailed announcement is expected with the official release of the update.

The first version of Lumo was launched as part of the Proton ecosystem and integrated with other private services from the company. Lumo 2.0 continues this course, adding features that make the AI assistant a more universal tool. This aligns with Proton's style: the company prefers gradual launches without excessive marketing — details are revealed as the product is ready.

Why a private AI assistant is becoming in demand

Most leading AI assistants monetize or use conversation data in one form or another. Even when a company claims it doesn't sell data, the correspondence passes through servers under US jurisdiction — which means it can be requested by court order or under national security legislation.

The European market is particularly sensitive to this issue. GDPR requirements have tightened corporations' approach to choosing AI services allowed for internal information. Proton, with its Geneva base and reputation as a confidential provider, is in a favorable position to work with this segment.

Moreover, competition in the AI assistant market is intensifying: OpenAI, Google, Anthropic, xAI are expanding the capabilities of flagship models. For niche players like Lumo, a sustainable differentiator is not model power, but privacy guarantees that large players cannot offer for architectural and business reasons.

"Privacy is not a feature, it is a right" —

Proton's position, laid at the foundation of all its products.

What does this mean

Lumo 2.0 is a signal that Proton continues to invest in the AI niche, not ceding it to Big Tech. As regulatory pressure on data in AI services grows, and users become increasingly careful about where their correspondence goes, private AI assistants may transition from a niche product category to a full market alternative.