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Proton Launches Lumo 2.0, a Privacy-First AI Assistant with Image Generation and Advanced Reasoning
Proton AG – the Swiss firm best known for its encrypted mail, VPN and password‑manager services – unveiled Lumo 2.0 on 30 June 2026. The update transforms the company’s privacy‑first AI assistant into a multimodal platform that can read, edit and generate images, remember context across sessions, perform live web searches with source citations, and enter a new “thinking mode” that sharpens its reasoning. Proton claims the refreshed model now matches the performance of the latest commercial offerings from OpenAI and Anthropic while keeping its zero‑access encryption and no‑logs policy intact.
Lumo first appeared in July 2025, and Proton reports that it has already drawn 10 million users. The company sees the new release as a catalyst for deeper adoption, especially as the industry grapples with recent controversies over data handling at OpenAI and Anthropic and the European Union’s technology‑sovereignty directive, which encourages the use of domestically controlled AI services.
"Lumo 2.0 has been re‑engineered from the ground up," said Proton founder and CEO Andy Yen. "The introduction of thinking mode gives it powerful new capabilities. User testing shows the gap between Lumo 2.0 Max and the latest OpenAI and Anthropic models has narrowed to the point where users can no longer perceive a qualitative difference." Proton argues that Lumo 2.0 proves users no longer need to choose between powerful AI capabilities and meaningful privacy protections.
Performance metrics released by Proton show Lumo 2.0 Lite scoring 127 percent higher than Lumo 1.4 on the Artificial Analysis Intelligence Index, while Lumo 2.0 Max scores 250 percent higher. The company attributes the gains to new reasoning models integrated into the assistant.
The multimodal toolkit now lets users analyze, edit and generate images within a single conversation, all protected by zero‑access encryption. A memory feature, combined with encrypted Projects and Custom Lumos, allows Lumo to maintain context across sessions, enabling more personalized and productive workflows.
Web search has been upgraded to provide live results and source citations, delivering more accurate, transparent and up‑to‑date answers while keeping all queries encrypted.
Lumo 2.0 is available in four tiers. The free tier offers core AI capabilities for everyday private use. The Plus tier costs $12.99 per month and includes unlimited chats, Projects, advanced image generation and access to Proton’s most capable models. The Professional tier, priced at $14.99 per month, adds advanced collaboration features for teams that require secure AI‑based teamwork. For larger organizations, Proton offers a Business tier as part of Proton Workspace at $24.99 per user per month. All plans are discounted when paid annually.
Proton’s privacy‑first approach builds on its existing infrastructure. Proton Mail, VPN and Drive already employ client‑side encryption and zero‑access policies. Lumo follows the same model, storing all user data encrypted on Proton‑controlled servers and never logging or training on user inputs.
The launch comes as the EU tightens AI regulations. The EU AI Act, adopted in 2024, requires higher transparency and safety standards for high‑risk AI systems. Proton’s emphasis on privacy and data sovereignty aligns with the directive’s goals and may position Lumo as an attractive option for EU‑based businesses.
In the broader AI landscape, OpenAI and Anthropic have faced scrutiny over data usage and safety. Proton’s announcement highlights a growing niche for privacy‑focused AI assistants that can compete with mainstream models without compromising user data.
Proton has not disclosed the specific models powering Lumo 2.0, but the company states that the assistant runs on open‑weights models hosted on Proton‑controlled servers. It also notes that it does not use user data for model training.
The release of Lumo 2.0 marks Proton’s most significant AI product update since the original launch. The company plans to continue improving the assistant’s capabilities while maintaining its privacy‑first stance. Future updates may include additional language support and expanded integration with Proton’s suite of encrypted services.
Proton’s Lumo 2.0 is available for download on the App Store and Google Play as of 30 June 2026. Users can sign up for the free tier or choose a paid plan to access the full set of features.
Lumo first appeared in July 2025, and Proton reports that it has already drawn 10 million users. The company sees the new release as a catalyst for deeper adoption, especially as the industry grapples with recent controversies over data handling at OpenAI and Anthropic and the European Union’s technology‑sovereignty directive, which encourages the use of domestically controlled AI services.
"Lumo 2.0 has been re‑engineered from the ground up," said Proton founder and CEO Andy Yen. "The introduction of thinking mode gives it powerful new capabilities. User testing shows the gap between Lumo 2.0 Max and the latest OpenAI and Anthropic models has narrowed to the point where users can no longer perceive a qualitative difference." Proton argues that Lumo 2.0 proves users no longer need to choose between powerful AI capabilities and meaningful privacy protections.
Performance metrics released by Proton show Lumo 2.0 Lite scoring 127 percent higher than Lumo 1.4 on the Artificial Analysis Intelligence Index, while Lumo 2.0 Max scores 250 percent higher. The company attributes the gains to new reasoning models integrated into the assistant.
The multimodal toolkit now lets users analyze, edit and generate images within a single conversation, all protected by zero‑access encryption. A memory feature, combined with encrypted Projects and Custom Lumos, allows Lumo to maintain context across sessions, enabling more personalized and productive workflows.
Web search has been upgraded to provide live results and source citations, delivering more accurate, transparent and up‑to‑date answers while keeping all queries encrypted.
Lumo 2.0 is available in four tiers. The free tier offers core AI capabilities for everyday private use. The Plus tier costs $12.99 per month and includes unlimited chats, Projects, advanced image generation and access to Proton’s most capable models. The Professional tier, priced at $14.99 per month, adds advanced collaboration features for teams that require secure AI‑based teamwork. For larger organizations, Proton offers a Business tier as part of Proton Workspace at $24.99 per user per month. All plans are discounted when paid annually.
Proton’s privacy‑first approach builds on its existing infrastructure. Proton Mail, VPN and Drive already employ client‑side encryption and zero‑access policies. Lumo follows the same model, storing all user data encrypted on Proton‑controlled servers and never logging or training on user inputs.
The launch comes as the EU tightens AI regulations. The EU AI Act, adopted in 2024, requires higher transparency and safety standards for high‑risk AI systems. Proton’s emphasis on privacy and data sovereignty aligns with the directive’s goals and may position Lumo as an attractive option for EU‑based businesses.
In the broader AI landscape, OpenAI and Anthropic have faced scrutiny over data usage and safety. Proton’s announcement highlights a growing niche for privacy‑focused AI assistants that can compete with mainstream models without compromising user data.
Proton has not disclosed the specific models powering Lumo 2.0, but the company states that the assistant runs on open‑weights models hosted on Proton‑controlled servers. It also notes that it does not use user data for model training.
The release of Lumo 2.0 marks Proton’s most significant AI product update since the original launch. The company plans to continue improving the assistant’s capabilities while maintaining its privacy‑first stance. Future updates may include additional language support and expanded integration with Proton’s suite of encrypted services.
Proton’s Lumo 2.0 is available for download on the App Store and Google Play as of 30 June 2026. Users can sign up for the free tier or choose a paid plan to access the full set of features.
