LLM apps

Open-source LLM apps and frameworks

This is the broadest group: chat interfaces, SDKs and frameworks, prompt and evaluation tools, and applications built on large language models. Many work with models from several providers, and some can run models on your own hardware.

How to choose

For anything you plan to ship, check three facts first: the licence, because some popular projects restrict commercial use; whether it supports the model provider you already use; and whether it is still maintained. The At a glance box on every project page answers the licence and maintenance questions from GitHub data.

Most-starred projects

361–384 of 4,628

openai

codex-security

★ 10,874

OpenAI's Codex Security CLI and TypeScript SDK for finding, validating, and fixing security vulnerabilities. npm: https://www.npmjs.com/package/@openai/codex-security

TypeScript

JOYCEQL

magic-resume

★ 10,871

free online AI resume editor，the only official website is https://magicv.art

TypeScript

TykTechnologies

tyk

★ 10,837

Open Source API and AI Gateway supporting REST, GraphQL, TCP, gRPC and MCP (Model Context Protocol)

LouisShark

chatgpt_system_prompt

★ 10,781

A collection of GPT system prompts and various prompt injection/leaking knowledge.

HTML

OpenPipe

ART

★ 10,781

Agent Reinforcement Trainer: train multi-step agents for real-world tasks using GRPO. Give your agents on-the-job training. Reinforcement learning for Qwen3.6, GPT-OSS, Llama, and more!

Python

sashabaranov

go-openai

★ 10,779

OpenAI, GPT 5.6, GPT-Image-2, Whisper API clients for Go

langchain-ai

open-swe

★ 10,772

An Open-Source Asynchronous Coding Agent

Python

VoltAgent

voltagent

★ 10,701

AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework

TypeScript

mcp-use

★ 10,698

The fullstack MCP framework to develop MCP Apps for ChatGPT / Claude & MCP Servers for AI Agents.

TypeScript

Const-me

Whisper

★ 10,671

High-performance GPGPU inference of OpenAI's Whisper automatic speech recognition (ASR) model

C++

abetlen

llama-cpp-python

★ 10,637

Python bindings for llama.cpp

Python

latent-spaces

brag

★ 10,628

You built it. Now brag. Turn the project you just created into a short, shareable launch video with one command.

Python

skypilot-org

skypilot

★ 10,615

The AI Compute Platform for frontier teams. SkyPilot turns fragmented AI compute into one AI supercomputer, so frontier AI teams build custom intelligence faster.

Python

multimodal-art-projection

YuE

★ 10,572

YuE2: frontier music generation with symbolic planning, zero-shot covers, and agentic music editing.

Python

google

artemis

★ 10,560

ARTEMIS turns natural-language instructions into reliable Android automation. It automates end-to-end workflows, captures logs, and integrates seamlessly with AI coding assistants such as Antigravity, Codex, and Claude Code. It also achieves 99%+ success rate on AndroidWorld Benchmark. Created by Google's Pixel-Test-Engineering (PTE) Fusion team.

Python

sub-store-org

Sub-Store

★ 10,557

Advanced Subscription Manager for QX, Loon, Surge, Stash, Egern and Shadowrocket!

JavaScript

a16z-infra

ai-town

★ 10,535

A MIT-licensed, deployable starter kit for building and customizing your own version of AI town - a virtual town where AI characters live, chat and socialize.

TypeScript