LlamaChat

LlamaChat

LlamaChat is a free, open-source macOS app for chatting with local LLaMA, Alpaca, GPT4All and Vicuna models, with built-in model conversion and no cloud dependency.

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ai-chatbot
Last Updated Oct 22, 2026
LlamaChat screenshot

About

LlamaChat is a free and open-source macOS application that lets users run chat conversations with local large language models, including LLaMA, Alpaca, GPT4All and (as a planned addition) Vicuna. It solves a common problem for people who want to experiment with open models without relying on a hosted service: everything runs locally on the user's Mac, so no account, subscription, or internet round-trip is needed for the chat itself.

The app is built on open-source libraries such as llama.cpp and llama.swift, and it ships as a native Mac app with builds for both Intel and Apple Silicon processors. It was created by Alex Rozanski together with other contributors and is distributed at no cost, with source code available on GitHub. Users supply their own model files, which LlamaChat can import either as raw PyTorch checkpoints or as pre-converted .ggml files, converting them as needed.

Key Features

Local model chat: Runs LLaMA, Alpaca and GPT4All conversations entirely on the user's Mac, keeping prompts and responses on the local machine.
Multiple model families: Supports chat with several open model lineages, with Vicuna support noted as coming soon.
Model conversion: Imports raw published PyTorch checkpoints directly or accepts pre-converted .ggml files, removing a separate conversion step for many users.
Fully open source: The entire application is open source, built on llama.cpp and llama.swift, and accepts community pull requests on GitHub.
Free of charge: The project states the app is 100% free and open source and will remain so.
Native Mac build: Ships as a universal app for Intel and Apple Silicon Macs, requiring macOS 13 or later.
Homebrew install: Can be installed with a single `brew install --cask llamachat` command in addition to a direct download.

Pricing & Fees

  • Pricing: Free; the project states LlamaChat is 100% free and fully open-source, and always will be.
  • No bundled models: LlamaChat does not ship with any model files, proprietary or otherwise; users must obtain model files themselves under the respective provider's terms.
  • Platform availability: macOS only, version 1.2.0 at the time of review, requiring macOS 13 and supporting both Intel and Apple Silicon.
  • Independence: LlamaChat is not affiliated with, endorsed by, or sponsored by Meta, Stanford, or Nomic AI.

Who It's For

LlamaChat is aimed at developers, AI hobbyists, and privacy-conscious Mac users who want to experiment with open language models on their own hardware. Typical use cases include trying out Alpaca or GPT4All locally, converting PyTorch checkpoints to a usable format, and studying or extending the app's source code. It suits people comfortable with open-source workflows — such as installing via Homebrew and sourcing model files themselves — rather than users looking for a turnkey hosted chatbot with bundled models.

FAQ

What is LlamaChat?LlamaChat is a free, open-source macOS app for chatting locally with LLaMA, Alpaca and GPT4All models, with Vicuna support planned.

Is LlamaChat free?Yes, the project states it is 100% free and fully open source, and always will be.

Does LlamaChat include model files?No, it is distributed without any model files; users are responsible for obtaining models under the terms set by their providers.

What platforms does LlamaChat support?It runs on macOS 13 or later, with builds for both Intel and Apple Silicon, and can be installed via Homebrew or direct download.

Is LlamaChat affiliated with Meta or Stanford?No, the developers state it is an independent application with no affiliation with, endorsement by, or sponsorship from Meta Platforms, Stanford University, or Nomic AI.