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Monica alternatives · AI Assistants

Open-source alternatives to Monica

Monica is not described as open source on its own site. 13 of the 57 other AI assistants in this directory are open source, according to their own sites.

Monica has a free plan. Paid plans start at $8.3 per month, billed annually ($99 per year). All of them are free or have a free plan.

13 tools · Listings checked up to Oct 9, 2026 · Where the facts come from

The 12 closest to Monica

  1. DeepSeek

    Free AI chat assistant built on DeepSeek's openly released models

    • DeepSeek is free. Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only Monica lists a browser extension.
    • DeepSeek is open source, according to its own site.
    • Monica also covers grammar & style.
    DeepSeek pricing and details

  2. HuggingChat

    Hugging Face's open-source chat app for open AI models

    • HuggingChat starts at $9 per month (Hugging Face PRO). Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only Monica lists macOS, Windows, iOS and Android apps.
    • Only Monica lists a browser extension.
    • HuggingChat is open source and self-hostable, according to its own site.
    HuggingChat pricing and details

  3. LibreChat

    Open-source, self-hosted chat interface for many AI providers

    • LibreChat is free. Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only Monica lists macOS, Windows, iOS and Android apps.
    • Only Monica lists a browser extension.
    • LibreChat is open source and self-hostable, according to its own site.
    LibreChat pricing and details

  4. Chatbox

    AI chat client for your own API keys or a hosted model plan

    • Chatbox starts at $3.50 per month, billed annually ($3.99 billed monthly). Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only Chatbox lists a Linux app.
    • Only Monica lists a browser extension.
    • Chatbox is open source, according to its own site.
    Chatbox pricing and details

  5. PyGPT

    Open-source desktop AI assistant with agents, RAG and local models

    • PyGPT is free. Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only PyGPT lists a Linux app.
    • Only Monica lists a web app.
    • Only Monica lists iOS and Android apps.
    PyGPT pricing and details

  6. Lumo

    Proton's private AI assistant with zero-access encrypted chats

    • Lumo starts at $9.99 per month, billed yearly ($119.88), or $12.99 billed monthly. Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only Monica lists macOS and Windows apps.
    • Only Monica lists a browser extension.
    • Lumo is open source, according to its own site.
    Lumo pricing and details

  7. Jan

    Open-source desktop app for running local and cloud AI models

    • Jan is free. Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only Jan lists a Linux app.
    • Only Monica lists a web app.
    • Only Monica lists iOS and Android apps.
    Jan pricing and details

  8. AnythingLLM

    Open-source AI app for documents, agents and local models

    • AnythingLLM starts at $50 per month (Basic hosted cloud instance). Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only AnythingLLM lists a Linux app.
    • Only Monica lists an iOS app.
    • Only Monica lists a browser extension.
    AnythingLLM pricing and details

  9. Cherry Studio

    Open-source desktop AI client for 50+ model providers

    • Only Cherry Studio lists a Linux app.
    • Only Monica lists a web app.
    • Only Monica lists a browser extension.
    • Cherry Studio is open source, according to its own site.
    Cherry Studio pricing and details

  10. Maple AI

    End-to-end encrypted AI chat that runs open models in enclaves

    • Maple AI starts at $20 per month (Pro). Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only Maple AI lists a Linux app.
    • Only Monica lists a browser extension.
    • Maple AI is open source and end-to-end encrypted, according to its own site.
    Maple AI pricing and details

  11. Big-AGI

    Multi-model AI workspace that compares and merges answers

    • Big-AGI starts at $9 per month, billed yearly ($108), or $10.99 billed monthly (Pro). Monica starts at $8.3 per month, billed annually ($99 per year).
    • Only Monica lists macOS, Windows, iOS and Android apps.
    • Only Monica lists a browser extension.
    • Big-AGI is open source and self-hostable, according to its own site.
    Big-AGI pricing and details

  12. NextChat

    Lightweight open-source AI chat client you can self-deploy

    • Only NextChat lists a Linux app.
    • Only Monica lists an Android app.
    • Only Monica lists a browser extension.
    • NextChat is open source and self-hostable, according to its own site.
    NextChat pricing and details

1 more that are open source

All 13 in one table

Common questions

Is there an open-source alternative to Monica?

Yes. DeepSeek, HuggingChat, LibreChat, Chatbox, PyGPT, Lumo, Jan, AnythingLLM and 5 more are open source, according to their own sites.

Is Monica open source?

Monica is not described as open source on its own site. The listing was checked on Oct 5, 2026 against the pages it cites.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Oct 9, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Monica: the alternatives its listing names first, then the tools that share the most features with it.