Mellum Alternatives

Mellum is described as '-4b-base is JetBrains' first open-source large language model (LLM) optimized for code-related tasks' and is a large language model (llm) tool in the ai tools & services category. There are more than 50 alternatives to Mellum for a variety of platforms, including Web-based, Windows, Mac, Linux and Android apps. The best Mellum alternative is ChatGPT, which is free. Other great apps like Mellum are Lumo by Proton, DeepSeek, Mistral Vibe and Google Gemini.

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Alternatives list

  1. Ami icon
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    Ami is a native desktop app that lets you run coding agents locally, chat with your codebase in plain English, and see real-time edits tracked for confident commits.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Windows
    • Mac
    • Linux
     
  2. OpenBlock icon
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    OB-1 is a terminal-based coding agent — like Claude Code, but with multi-model access and self-optimizing workflows. You bring your own API keys (or use ours), pick the best model for each task, and let OB-1 handle the rest.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Windows
    • Linux
    • Mac
     
  3. KamuAI icon
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    Privacy-focused AI chat assistant compatible with Windows, Mac, and Linux. Operates completely offline or with EU-hosted models, never uploads data, keeps chats secure, supports multiple tabs, prompt libraries, organized conversations, and flexible usage-based pricing.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Windows
    • Mac
     
  4. Model Diplomat is an AI-powered assistant built for Model United Nations (MUN) delegates, helping you prepare, practice, and perform at your best.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Online
     
  5. Oh My Pi icon
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    AI coding agent for the terminal — hash-anchored edits, optimized tool harness, LSP, Python, browser, subagents, and more.

    51 Oh My Pi alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Windows
    • Linux
    • Homebrew
     
  6. SageBow icon
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    SageBow's autonomous AI agents deploy directly into your Python environment and execute end-to-end tasks.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Software as a Service (SaaS)
     
  7. Harkixsha AI icon
     1 like

    Harkixsha AI is a cutting-edge assistant designed for natural conversations, smart answers, and real-time knowledge — always ready to help you.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    • Windows
    • Android
     
  8. Anahata ASI - Artificial Super Intelligence - Cross-Platform, Modular, Enterprise Ready, Open Source, Pure Java, AGI and ASI Containers. Context Window Garbage Collector, Stateful Toolkits, Flight Recorder. Autonomous Observable Auditable JVM Agent with JIT java code execution.

    Cost / License

    Platforms

    • Windows
    • Linux
    • Mac
     
  9. Thremark icon
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    AI chat with real memory. Say something once — it knows forever. Every fact visible as a Mark you can edit or delete.

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • iPhone
    • iPad
    • Online
     
  10. Offers llama, nova, mixtral, and multiple versions of Claude. SDXL and Titan Image for image generation. Great interface with tools like document submission and web search.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Online
     
  11. ExplainBot icon
     1 like

    ExplainBot is not just a chatbot demo — it’s a complete SaaS starter kit with everything you need to launch your own AI-powered chat platform.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
     
  12. Ozus PC Assistant is an AI based Windows PC Agent using which you will be able to manage files, boost performance, launch apps faster, Edit documents and creats PDFs and interact with your PC using built-in AI.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Windows
     
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