Open Source DeepSeek AlternativesAI Chatbots & Large Language Model (LLM) Tools like DeepSeek

The best open source alternative to DeepSeek is Lumo by Proton. If that doesn't suit you, our users have ranked more than 100 alternatives to DeepSeek and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to DeepSeek are Qwen, Jan.ai, Ensu and AnythingLLM.

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Most DeepSeek alternatives are AI Chatbots, but you can also narrow the list to Large Language Model (LLM) Tools or AI Writing Tools. Other popular filters are Free and Open Source. You can also filter for EU-based alternatives if you prefer software from the European Union.
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Alternatives
DeepSeek alternatives page was last updated

Alternatives list

  1. Lumo by Proton icon
     199 likes

    Privacy-first AI assistant utilizing zero-access encryption and open-source code, ensuring no data logging, profiling, or training on chats, providing user-controlled, encrypted conversations, with compliance under GDPR and no sharing with third parties.

    161 Lumo by Proton alternatives

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    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
    • OpenAPK
    Good alternative?
     
  2. Qwen icon
     85 likes

    Qwen.com is an interface to chat with Alibaba Qwen's Qwen series of models which are renowned for their huge context windows, generous free usage limits, reliability, and their continued tradition of being open-source.

    165 Qwen alternatives

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    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • Self-Hosted
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  3. Jan.ai icon
     123 likes

    Open-source offline AI platform supports local LLMs including Llama, Gemma, Qwen, GPT-oss, integrates cloud services like OpenAI and Anthropic, enables custom assistant creation, offers OpenAI-compatible API on localhost, operates across diverse hardware and ensures privacy.

    290 Jan.ai alternatives

    Cost / License

    • Free
    • Open Source

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    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Flathub
    • Flatpak
    Good alternative?
     
  4. Ensu icon
     41 likes

    Private offline AI chat using local language models on mobile and desktop, no accounts or tracking, open source Rust core, privacy-first design, cross-platform availability, ideal for confidential conversations, with end-to-end encrypted sync coming soon.

    85 Ensu alternatives

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    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • US flagUnited States
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    Good alternative?
     
  5. AnythingLLM icon
     74 likes

    Open-source privacy-focused chatbot platform allowing unlimited document uploads, multi-user and single-user modes, AI-powered chat with documents, vector database and LLM compatibility, customizable interface, message history, secure desktop deployment, and full user controls.

    267 AnythingLLM alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • Docker
    Good alternative?
     
  6. Alpaca is an Ollama client where you can manage and chat with multiple models, Alpaca provides an easy and begginer friendly way of interacting with local AI.

    206 Alpaca - Ollama Client alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • Flathub
    • Flatpak
    • Linux Mobile
    Good alternative?
     
  7. Euria icon
     32 likes

    Confidential AI chat assistant delivering writing, summarization, voice transcription, email handling, and document search tools, all hosted exclusively in Switzerland with open source models, data sovereignty, and compliance with GDPR and FADP standards.

    Cost / License

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
    Good alternative?
     
  8. LibreChat icon
     52 likes

    LibreChat is a free, open source AI chat platform. This Web UI offers vast customization, supporting numerous AI providers, services, and integrations. Serves all AI Conversations in one place with a familiar interface, innovative enhancements, for as many users as you need.

    167 LibreChat alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Self-Hosted
    • Docker
    • Cloudron
    • npm
    Good alternative?
     
  9. Mellum icon
     28 likes

    Explore Mellum, a family of fast language models, including a next-generation model for ultra-low-latency and high-performance inference.

    106 Mellum alternatives

    Cost / License

    Application type

    Platforms

    • Self-Hosted
    • Python
    Good alternative?
     
  10. Apertus icon
     32 likes

    As a fully open language model, Apertus allows researchers, professionals and enthusiasts to build upon the model and adapt it to their specific needs, as well as to inspect any part of the training process.

    117 Apertus alternatives

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    Application type

    Platforms

    • Online
    • Self-Hosted
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  11. Z.ai icon
     23 likes

    Z.ai is an AI-powered conversational platform developed by Zhipu AI, designed to provide intelligent, natural, and context-aware interactions. It leverages Zhipu’s advanced large language models (GLM series) to support tasks such as answering questions, generating content...

    79 Z.ai alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Online
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  12. Meta Llama icon
     39 likes

    As part of Meta’s commitment to open science, today we are publicly releasing Llama (Large Language Model Meta AI), a state-of-the-art foundational large language model designed to help researchers advance their work in this subfield of AI.

    286 Meta Llama alternatives

    Cost / License

    • Free
    • Open Source

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    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Self-Hosted
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