Proton Lumo 2.0 adds image generation and thinking mode with zero-access encryption

Proton Lumo 2.0 brings multimodal capabilities to privacy-focused AI

Proton has released Lumo 2.0, marking the most substantial upgrade to its privacy-focused AI chatbot since its August 2025 launch1

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. The update transforms Proton's privacy-first AI chatbot into a multimodal assistant capable of generating, analyzing, and editing images while maintaining the company's stringent privacy protections. Users can now upload pictures into the AI chatbot and use it to analyze or edit them, with all image-related conversations protected by zero-access encryption5

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The update introduces two distinct operational modes: a fast mode for rapid responses to generic queries and a reasoning mode that enables multi-step analysis for complex problems2

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. This thinking mode represents a significant enhancement to Lumo's capabilities, positioning it as a more competitive privacy-preserving alternative to ChatGPT and other mainstream platforms. According to Proton, the AI chatbot now responds to most queries up to 76 percent faster than its previous iteration1

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Performance improvements measured on Artificial Analysis Intelligence Index

Proton Lumo 2.0 has demonstrated substantial performance gains across multiple benchmarks. On the independent Artificial Analysis Intelligence Index, which evaluates AI models across 10 different benchmarks including GDPval-AA v2, Terminal-Bench v2.1, Humanity's Last Exam, and GPQA Diamond, Lumo 2.0 Lite scored 127 percent higher than Lumo 1.42

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. The more advanced Lumo 2.0 Max achieved an even more impressive 240 percent improvement over the previous version3

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Andy Yen, Founder and CEO at Proton, stated that user testing demonstrates the gap has closed to the point where users can no longer perceive a qualitative difference between Lumo 2.0 Max and the latest models from OpenAI and Anthropic for many use cases3

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. This performance parity matters because it eliminates the traditional trade-off between capability and privacy that has characterized the AI chatbot landscape.

Zero-access encryption and Swiss-based infrastructure set Lumo apart

What distinguishes Proton Lumo 2.0 from competitors like ChatGPT and Gemini is its comprehensive approach to privacy through zero-access encryption1

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. This architecture encrypts user data both in transit and at rest, ensuring that only the user can access their conversations. Messages remain encrypted across Proton's entire network, including its internal pipeline, until they reach the large language model, which keeps no data logging of chats2

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The AI chatbot runs entirely on Proton's European infrastructure, which keeps the technology outside jurisdictions with weaker data protection laws2

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. Based in Geneva, Switzerland, Proton operates under Swiss privacy laws that align with EU/GDPR standards while often exceeding them in stringency. This means access to Lumo cannot be subject to US Executive Orders, and user data is not subject to American data collection requests3

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. Proton promises never to use customer data for AI training or share it with third parties1

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User-controlled memory and enhanced web search expand functionality

Proton Lumo 2.0 introduces user-controlled memory within its Projects feature, allowing the AI chatbot to recall user preferences across multiple conversational sessions1

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. This persistent memory function enables more personalized interactions while maintaining privacy controls, as users determine how much information is retained. Projects now serve as dedicated, secure workspaces where users can store conversations, files, and instructions2

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The update also brings improved live web search capabilities with source citations, reducing the risk of hallucinations and providing more accurate, up-to-date information on recent news, events, finance, and weather2

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. Hands-on testing revealed that Lumo's image generation matched or occasionally exceeded ChatGPT's output quality, with notably faster generation times4

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. The chatbot's analysis of dense scientific research papers appeared on par with ChatGPT in terms of structure and accessibility4

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Pricing and availability for consumers and businesses

Proton Lumo 2.0 is available immediately with core AI features included in a free tier for everyday private use3

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. The service can be accessed on the web, Android, and iOS without requiring a Proton account4

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. For users requiring more advanced capabilities, Lumo Plus is available at $9.99 per month, offering unlimited chats, Projects, advanced image generation, and access to Proton's most capable models1

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Lumo Professional targets businesses that cannot afford the risks associated with exposing sensitive company data to conventional AI platforms. With over 10 million people having adopted the privacy-preserving alternative to ChatGPT since launch, Proton is positioning Lumo 2.0 as a solution for organizations seeking secure AI tools without compromising on capability2

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. The chatbot is built on open-source language models, providing additional transparency compared to proprietary alternatives3

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