catai

Run AI ✨ assistant locally! with simple API for Node.js 🚀

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CatAI is a tool that allows users to run GGUF models on their computer with a chat UI. It serves as a local AI assistant inspired by Node-Llama-Cpp and Llama.cpp. The tool provides features such as auto-detecting programming language, showing original messages by clicking on user icons, real-time text streaming, and fast model downloads. Users can interact with the tool through a CLI that supports commands for installing, listing, setting, serving, updating, and removing models. CatAI is cross-platform and supports Windows, Linux, and Mac. It utilizes node-llama-cpp and offers a simple API for asking model questions. Additionally, developers can integrate the tool with node-llama-cpp@beta for model management and chatting. The configuration can be edited via the web UI, and contributions to the project are welcome. The tool is licensed under Llama.cpp's license.

README:

CatAI

Run GGUF models on your computer with a chat ui.

Your own AI assistant runs locally on your computer.

Inspired by Node-Llama-Cpp, Llama.cpp

Installation & Use

Make sure you have Node.js (download current) installed.

npm install -g catai

catai install meta-llama-3-8b-q4_k_m
catai up

Features

Auto detect programming language 🧑‍💻
Click on user icon to show original message 💬
Real time text streaming ⏱️
Fast model downloads 🚀

CLI

Usage: catai [options] [command]

Options:
  -V, --version                    output the version number
  -h, --help                       display help for command

Commands:
  install|i [options] [models...]  Install any GGUF model
  models|ls [options]              List all available models
  use [model]                      Set model to use
  serve|up [options]               Open the chat website
  update                           Update server to the latest version
  active                           Show active model
  remove|rm [options] [models...]  Remove a model
  uninstall                        Uninstall server and delete all models
  node-llama-cpp|cpp [options]     Node llama.cpp CLI - recompile node-llama-cpp binaries
  help [command]                   display help for command

Install command

Usage: cli install|i [options] [models...]

Install any GGUF model

Arguments:
  models                Model name/url/path

Options:
  -t --tag [tag]        The name of the model in local directory
  -l --latest           Install the latest version of a model (may be unstable)
  -b --bind [bind]      The model binding method
  -bk --bind-key [key]  key/cookie that the binding requires
  -h, --help            display help for command

Cross-platform

You can use it on Windows, Linux and Mac.

This package uses node-llama-cpp which supports the following platforms:

darwin-x64
darwin-arm64
linux-x64
linux-arm64
linux-armv7l
linux-ppc64le
win32-x64-msvc

Good to know

All download data will be downloaded at ~/catai folder by default.
The download is multi-threaded, so it may use a lot of bandwidth, but it will download faster!

Web API

There is also a simple API that you can use to ask the model questions.

const response = await fetch('http://127.0.0.1:3000/api/chat/prompt', {
    method: 'POST',
    body: JSON.stringify({
        prompt: 'Write me 100 words story'
    }),
    headers: {
        'Content-Type': 'application/json'
    }
});

const data = await response.text();

For more information, please read the API guide

Development API

You can also use the development API to interact with the model.

import {createChat, downloadModel, initCatAILlama, LlamaJsonSchemaGrammar} from "catai";

// skip downloading the model if you already have it
await downloadModel("meta-llama-3-8b-q4_k_m");

const llama = await initCatAILlama();
const chat = await createChat({
    model: "meta-llama-3-8b-q4_k_m"
});

const fullResponse = await chat.prompt("Give me array of random numbers (10 numbers)", {
    grammar: new LlamaJsonSchemaGrammar(llama, {
        type: "array",
        items: {
            type: "number",
            minimum: 0,
            maximum: 100
        },
    }),
    topP: 0.8,
    temperature: 0.8,
});

console.log(fullResponse); // [10, 2, 3, 4, 6, 9, 8, 1, 7, 5]

(For the full list of model, run catai models)

Node-llama-cpp@beta low level integration

You can use the model with node-llama-cpp@beta

CatAI enables you to easily manage the models and chat with them.

import {downloadModel, getModelPath, initCatAILlama, LlamaChatSession} from 'catai';

// download the model, skip if you already have the model
await downloadModel(
    "https://huggingface.co/QuantFactory/Meta-Llama-3-8B-Instruct-GGUF/resolve/main/Meta-Llama-3-8B-Instruct.Q2_K.gguf?download=true",
    "llama3"
);

// get the model path with catai
const modelPath = getModelPath("llama3");

const llama = await initCatAILlama();
const model = await llama.loadModel({
    modelPath
});

const context = await model.createContext();
const session = new LlamaChatSession({
    contextSequence: context.getSequence()
});

const a1 = await session.prompt("Hi there, how are you?");
console.log("AI: " + a1);

Configuration

You can edit the configuration via the web ui.

More information here

Contributing

Contributions are welcome!

Please read our contributing guide to get started.

License

This project uses Llama.cpp to run models on your computer. So any license applied to Llama.cpp is also applied to this project.

If you like this repo, star it ✨

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