Lumo by Proton AlternativesAI Chatbots & Large Language Model (LLM) Tools like Lumo by Proton

Lumo by Proton is described as 'Privacy-first AI assistant with zero-access encryption, no logging or profiling, open-source code, and user-controlled conversations, subject to GDPR regulations' and is a popular AI Chatbot in the ai tools & services category. There are more than 50 alternatives to Lumo by Proton for a variety of platforms, including Web-based, Android, iPhone, Mac and Windows apps. The best Lumo by Proton alternative is ChatGPT, which is free. Other great apps like Lumo by Proton are DeepSeek, Mistral Le Chat, Perplexity and DuckDuckGo AI Chat.

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Lumo by Proton alternatives are mainly AI Chatbots, but if you're looking for AI Writing Tools or Large Language Model (LLM) Tools you can filter on that. These are just examples - use the filter bar below to find more specific alternatives to Lumo by Proton.
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Alternatives list

  1. ChatGPT icon

    ChatGPT

     419 likes
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    AI language model perfect for generating interactive human-like text in various styles. Built on architecture allowing real-time natural language generation, ideal for applications demanding fluent, relevant output over diverse topics broadened by extensive training data.

    405 ChatGPT alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Chrome
    ChatGPT screenshot 1
     

    • ChatGPT is the most popular Web-based, Windows, Android & Mac alternative to Lumo by Proton.

    • ChatGPT is the most popular free alternative to Lumo by Proton.

    • ChatGPT is Freemium and ProprietaryLumo by Proton is Freemium and Open Source
  2. DeepSeek icon

    DeepSeek

     94 likes
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    DeepSeek is an advanced AI designed to assist with answering questions, solving problems, and providing insights through natural, conversational interactions.

    134 DeepSeek alternatives

    Cost / License

    • Freemium (Pay once or Subscription)
    • Open Source

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    DeepSeek screenshot 1
     

    • DeepSeek is the most popular Open Source alternative to Lumo by Proton.

    • DeepSeek is Freemium and Open SourceLumo by Proton is also Freemium and Open Source
    • DeepSeek is LightweightLumo by Proton is not according to our users
  4. Mistral Le Chat icon

    Mistral Le Chat

     91 likes
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    Explore Mistral’s conversational tech with educational, fun interactivity. Customizable, unbiased models excel in performance benchmarks, supporting flexible deployment.

    165 Mistral Le Chat alternatives

    Cost / License

    • Free Personal
    • Proprietary

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Software as a Service (SaaS)
    Mistral Le Chat screenshot 1
     

    • Mistral Le Chat is the most popular SaaS & Self-Hosted alternative to Lumo by Proton.

    • Mistral Le Chat is Free Personal and ProprietaryLumo by Proton is Freemium and Open Source
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    Eney

    AI-powered Mac assistant automates small and complex tasks, interprets natural conversation, adapts to user workflows, streamlines daily routines, and anticipates needs with proactive assistance. Uses local models and cloud AI fr...

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  6. Perplexity icon

    Perplexity

     133 likes
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    AI-powered engine offers precise answers through a conversational interface utilizing large language models. Features include predictive text, personalized profiles, and Pro Search for advanced AI capabilities. Ideal for summarizing content, exploring topics, and enhancing productivity.

    41 Perplexity alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Chrome
    Perplexity screenshot 1
     
  7. DuckDuckGo AI Chat icon

    DuckDuckGo AI Chat

     73 likes
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    Duck.ai is a free feature that allows you to have private conversations with 3rd-party AI chat models, anonymized by us. It currently supports Anthropic’s Claude 3 Haiku, Meta’s Llama 4, Mistral AI’s Mistral Small 3, and OpenAI’s GPT-4o mini.

    96 DuckDuckGo AI Chat alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • DuckDuckGo
    DuckDuckGo AI Chat screenshot 1
     
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    2
    Comments about DuckDuckGo AI Chat as an Alternative to Lumo by Proton
    Schmebi
    Positive
    1

    They both have a similar goal, making a privacy respecting AI chat app, with the difference that DuckDuckGo offer multiple models.

    freedomtux
    Positive
    0

    Cleaner; simpler; keeps offline history without a sign in. It's a tough contest with Duck winning out for user experience; but Proton winning out for privacy & sustainability (Proton's business model is distinctly freedom-privacy oriented; DuckDuckGo could suffer from drift)

    But in Sep '25 usability is king - Duck.AI using Open Source models is good enough to get the job done.

    Lumo by Proton Icon
    DuckDuckGo AI Chat icon
    • DuckDuckGo AI Chat is Freemium and ProprietaryLumo by Proton is Freemium and Open Source
    • DuckDuckGo AI Chat is LightweightLumo by Proton is not according to our users
  8. Google Gemini icon

    Google Gemini

     137 likes
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    AI assistant offers writing, planning, learning support, generating images from text, and transforming text to speech. Utilizes large language models and syncs across devices without requiring coding skills. Supports dark mode and ad-free experience.

    293 Google Gemini alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Wear
    • Google Docs
    • Gmail
    Google Gemini screenshot 1
     
  10. Jan.ai icon

    Jan.ai

     79 likes
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    Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.

    166 Jan.ai alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • Online
    Jan.ai screenshot 1
     

    • Jan.ai is the most popular Linux alternative to Lumo by Proton.

    • Jan.ai is Free and Open SourceLumo by Proton is Freemium and Open Source
    • Jan.ai is CustomizableLumo by Proton is not according to our users
  11. Claude icon

    Claude

     82 likes
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    Claude is a next-generation AI assistant based on Anthropic’s research into training helpful, honest, and harmless AI systems. Accessible through chat interface and API in our developer console, Claude is capable of a wide variety of conversational and text processing tasks...

    238 Claude alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • iPad
    • Software as a Service (SaaS)
    • Google Sheets
    Claude screenshot 1
     
  12. Microsoft Copilot icon

    Microsoft Copilot

     82 likes
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    Microsoft Copilot (previously know as Bing Chat) is a new Chatbot feature for Microsoft Bing which aim to revolutionize the search engine experience through AI-powered technology.

    217 Microsoft Copilot alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Mac
    • Windows
    Microsoft Copilot screenshot 1
     
  13. Grok icon

    Grok

     46 likes
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    Grok is a generative artificial intelligence chatbot developed by xAI. Based on the large language model (LLM) of the same name, it was launched in 2023 as an initiative by Elon Musk. The chatbot is advertised as having a "sense of humor" and direct access to X...

    134 Grok alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • X
    Grok screenshot 1
     
  15. Poe icon

    Poe

     66 likes
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    Poe lets you ask questions, get instant answers, and have back-and-forth conversations with AI. Includes Claude from Anthropic and a variety of other bots.

    307 Poe alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Poe screenshot 1
    Poe screenshot 2
    Poe screenshot 3
     
12 of 88 Lumo by Proton alternatives