Open source gpt projects

Every project in the registry tagged gpt, ranked by real GitHub adoption.

projects 30 combined stars ★ 907K refresh nightly
01 Dify ★ 156K

Build and deploy AI agents and RAG pipelines visually

last push6 hours ago languageTypeScript license
02 generative-ai-for-beginners ★ 120K

21 Lessons, Get Started Building with Generative AI

last push20 hours ago languageJupyter Notebook licenseMIT
03 vllm ★ 92K

A high-throughput and memory-efficient inference and serving engine for LLMs

last push4 hours ago languagePython licenseApache-2.0
04 OpenHands ★ 88K

Autonomous coding agents that complete real engineering tasks

last push4 hours ago languageTypeScript licenseMIT
05 Jan ★ 45K

Run AI models locally or connect to cloud, privately

last push7 hours ago languageTypeScript license
06 chatbox ★ 42K

Powerful AI Client

last push34 hours ago languageTypeScript licenseGPL-3.0
07 AstrBot ★ 41K

AI Agent Assistant & development framework that integrates lots of IM platforms, LLMs, plugins and AI feature, and can be your openclaw alternative. ✨

last push8 hours ago languagePython licenseAGPL-3.0
08 LightRAG ★ 40K

[EMNLP2025] LightRAG: Simple and Fast Retrieval-Augmented Generation

last push6 hours ago languagePython licenseMIT
09 Langchain-Chatchat ★ 39K

Langchain-Chatchat(原Langchain-ChatGLM)基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowle

last push10 months ago languagePython licenseApache-2.0
10 one-api ★ 37K

LLM API 管理 & 分发系统,支持 OpenAI、Azure、Anthropic Claude、Google Gemini、DeepSeek、字节豆包、ChatGLM、文心一言、讯飞星火、通义千问、360 智脑、腾讯混元等主流模型,统一 API 适配,可用于 key 管理与二次分发。单可执行文件,提供 Docke

last push8 months ago languageJavaScript licenseMIT
11 graphrag ★ 36K

A modular graph-based Retrieval-Augmented Generation (RAG) system

last push31 hours ago languagePython licenseMIT
12 repomix ★ 28K

📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Langua

last push5 days ago languageTypeScript licenseMIT
13 Skyvern ★ 23K

Automate any website workflow with AI and computer vision

last push4 hours ago languagePython licenseAGPL-3.0
14 DB-GPT ★ 20K

open-source agentic AI data assistant for the next generation of AI + Data products.

last push41 hours ago languagePython licenseMIT
15 Botpress ★ 15K

Build powerful AI agents with cutting-edge LLM technology

last push4 hours ago languageTypeScript licenseMIT
16 E2B ★ 14K

Secure cloud environments for enterprise AI agents

last push11 hours ago languagePython licenseApache-2.0
17 langchain4j ★ 13K

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and v

last push31 hours ago languageJava licenseApache-2.0
18 bisheng ★ 12K

BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent,

last push10 hours ago languagePython licenseApache-2.0
19 promptflow ★ 11K

Build high-quality LLM apps - from prototyping, testing to production deployment and monitoring.

last push22 days ago languagePython licenseMIT
20 Helicone ★ 6.2K

Build reliable AI apps with comprehensive observability

last push29 hours ago languageTypeScript licenseApache-2.0
21 openagent ★ 5.6K

⚡️next-generation personal AI assistant powered by LLM, RAG and agent loops, supporting computer-use, browser-use and coding agent, demo: https://demo.openagent

last push12 hours ago languageGo licenseApache-2.0
22 LangWatch ★ 4.8K

Simulation-based testing and evaluation for AI agents

last push4 hours ago languageTypeScript licenseApache-2.0
23 langroid ★ 4.1K

Harness LLMs with Multi-Agent Programming

last push37 hours ago languagePython licenseMIT
24 lorax ★ 3.8K

Multi-LoRA inference server that scales to 1000s of fine-tuned LLMs

last push4 months ago languagePython licenseApache-2.0
25 Swirl Search ★ 3.0K

Get instant answers from your company knowledge

last push12 days ago languagePython licenseApache-2.0
26 openlake ★ 2.7K

OpenLake is a high performance storage engine for efficient LLM inference and GPU Training

last push3 days ago languageRust licenseApache-2.0
27 DeepBI ★ 2.4K

LLM based data scientist, AI native data application. AI-driven infinite thinking redefines BI.

last push21 days ago languagePython licenseMIT
28 Agently ★ 1.7K

[GenAI Application Development Framework] 🚀 Build GenAI application quick and easy 💬 Easy to interact with GenAI agent in code using structure data and chain

last push5 days ago languagePython licenseApache-2.0
29 langtrace ★ 1.2K

Langtrace 🔍 is an open-source, Open Telemetry based end-to-end observability tool for LLM applications, providing real-time tracing, evaluations and metrics f

last push10 months ago languageTypeScript licenseAGPL-3.0
30 openchatbi ★ 646

OpenChatBI is an intelligent chat-based BI tool powered by large language models, designed to help users query, analyze, and visualize data through natural lang

last push6 days ago languagePython licenseMIT

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Frequently asked questions

How many open source gpt projects are there?

This registry tracks 30 projects tagged gpt, with 907,380 GitHub stars between them. The most-adopted is Dify at 156,167 stars.

Are these gpt projects free to use?

Yes — 28 of the 30 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which gpt project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these gpt projects still maintained?

26 of the 30 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.