Today we’re releasing a powerful update to Lumo that gives you a more capable privacy-first AI assistant offering faster, more thorough answers with improved awareness of recent events.

Guided by feedback from our community, we’ve been busy upgrading our models and adding GPUs, which we’ll continue to do thanks to the support of our Lumo Plus subscribers. Lumo 1.1 performs significantly better across the board than the first version of Lumo, so you can now use it more effectively for a variety of use cases:

  • Get help planning projects that require multiple steps — it will break down larger goals into smaller tasks
  • Ask complex questions and get more nuanced answers
  • Generate better code — Lumo is better at understanding your requests
  • Research current events or niche topics with better accuracy and fewer hallucinations thanks to improved web search

New cat, new tricks, same privacy

The latest upgrade brings more accurate responses with significantly less need for corrections or follow-up questions. Lumo now handles complex requests much more reliably and delivers the precise results you’re looking for.

In testing, Lumo’s performance has increased across several metrics:

  • Context: 170% improvement in context understanding so it can accurately answer questions based on your documents and data
  • Coding: 40% better ability to understand requests and generate correct code
  • Reasoning: Over 200% improvement in planning tasks, choosing the right tools such as web search, and working through complex multi-step problems

Most importantly, Lumo does all of this while respecting the confidentiality of your chats. Unlike every major AI platform, Lumo is open source and built to be private by design. It doesn’t keep any record of your chats, and your conversation history is secured with zero-access encryption so nobody else can see it and your data is never used to train the models. Lumo is the only AI where your conversations are actually private.

Learn about Lumo privacy

Lumo mobile apps are now open source

Unlike Big Tech AIs that spy on you, Lumo is an open source application that exclusively runs open source models. Open source is especially important in AI because it confirms that the applications and models are not being used nefariously to manipulate responses to fit a political narrative or secretly leak data. While the Lumo web client is already open source(new window), today we are also releasing the code for the mobile apps(new window). In line with Lumo being the most transparent and private AI, we have also published the Lumo security model so you can see how Lumo’s zero access encryption works and why nobody, not even Proton can access your conversation history.

Get the best performance with Lumo Plus

Everyone can take advantage of the update, but if you want the fastest responses, even more powerful answers, and unlimited usage you can upgrade to Lumo Plus to support the future of privacy-respecting AI and unlock the full power of Lumo.

AI must be as powerful as it is private

Big Tech’s surveillance-driven AI business model thrives because the most powerful assistants today consume your personal data at massive scale, integrating without your explicit consent into every facet of your digital life. The only way to truly challenge this model is to create alternatives that are just as capable, responsive, and useful — but built with privacy at their core.

With Lumo 1.1, you have a smarter, faster assistant that works for you, not for advertisers, and keeps your conversations private by design. With Lumo, we will be iterating quickly and launching new major features quickly, so look out for Lumo 1.2 to drop next month with even more community requests. Let us know your thoughts on X(new window) and Reddit(new window).