Apertus AlternativesAI Chatbots & Large Language Model (LLM) Tools like Apertus

Apertus is described as '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' and is a AI Chatbot in the ai tools & services category. There are more than 50 alternatives to Apertus for a variety of platforms, including Web-based, Mac, Windows, Android and Linux apps. The best Apertus alternative is ChatGPT, which is free. Other great apps like Apertus are Lumo by Proton, DeepSeek, Mistral Le Chat and Google Gemini.

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Alternatives list

  1. ChatGPT icon
     436 likes

    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.

    489 ChatGPT alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Google Chrome
     
  2. Lumo by Proton icon
     92 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.

    115 Lumo by Proton alternatives

    Cost / License

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
     
  3. DeepSeek icon
     111 likes

    DeepSeek is a state-of-the-art AI assistant designed to provide intelligent, conversational support across diverse tasks. It leverages advanced natural language processing and machine learning to answer questions, generate creative content, solve complex problems, and offer...

    184 DeepSeek alternatives

    Cost / License

    • Freemium
    • Open Source (MIT)

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
     
  4. Mistral Le Chat icon
     104 likes

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

    198 Mistral Le Chat alternatives

    Cost / License

    • Free Personal
    • Proprietary

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
     
  5. Google Gemini icon
     154 likes

    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.

    345 Google Gemini alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Android
    • iPhone
    • Android Wear
    • Google Docs
    • Gmail
     
  6. 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.

    121 DuckDuckGo AI Chat alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • DuckDuckGo
     
  7. OpenClaw icon
     37 likes

    Personal AI assistant runs locally, supporting major chat platforms including WhatsApp, Telegram, Discord, iMessage, and more, with extension to Matrix and Zalo. Integrates speech and listening on macOS, iOS, and Android, plus offers a controllable live Canvas, prioritizing privacy.

    109 OpenClaw alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Docker
    • Node.JS
     
  8. Jan.ai icon
     95 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.

    226 Jan.ai alternatives

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Flathub
    • Flatpak
     
  9. Claude icon
     102 likes

    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...

    301 Claude alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • iPad
    • Software as a Service (SaaS)
    • Google Sheets
     
  10. 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.

    261 Microsoft Copilot alternatives

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
     
  11. Secret Llama icon
     56 likes

    Runs fully private, offline chatbot entirely in browser, ensuring conversation data never leaves the device. No server, installation, external services, or account needed. Supports Llama 3, Mistral, and other open source models in a ChatGPT-like interface for privacy-focused users.

    142 Secret Llama alternatives

    Cost / License

    Platforms

    • Online
    • Self-Hosted
     
  12. AnythingLLM icon
     44 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.

    198 AnythingLLM alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • Docker
     
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