ChatDev 2.0 - DevAll

<img src="frontend/public/media/logo.png" alt="DevAll Logo" width="500"/> A Zero-Code Multi-Agent Platform for Developing Everything 【<a href="./README.md">English</a> | <a href="./README-zh.md">简体中文</a>】 【📚 <a href="#developers">Developers</a> | 👥 <a href="#primary-contributors">Contributors</a>｜⭐️ <a href="https://github.com/OpenBMB/ChatDev/tree/chatdev1.0">ChatDev 1.0 (Legacy)</a>】

📖 Overview

ChatDev has evolved from a specialized software development multi-agent system into a comprehensive multi-agent orchestration platform.

<a href="https://github.com/OpenBMB/ChatDev/tree/main">ChatDev 2.0 (DevAll)</a> is a Zero-Code Multi-Agent Platform for "Developing Everything". It empowers users to rapidly build and execute customized multi-agent systems through simple configuration. No coding is required—users can define agents, workflows, and tasks to orchestrate complex scenarios such as data visualization, 3D generation, and deep research.
<a href="https://github.com/OpenBMB/ChatDev/tree/chatdev1.0">ChatDev 1.0 (Legacy)</a> operates as a Virtual Software Company. It utilizes various intelligent agents (e.g., CEO, CTO, Programmer) participating in specialized functional seminars to automate the entire software development life cycle—including designing, coding, testing, and documenting. It serves as the foundational paradigm for communicative agent collaboration.

🎉 News

• Jan 07, 2026: 🚀 We are excited to announce the official release of ChatDev 2.0 (DevAll)! This version introduces a zero-code multi-agent orchestration platform. The classic ChatDev (v1.x) has been moved to the chatdev1.0 branch for maintenance. More details about ChatDev 2.0 can be found on our official post.

•Sep 24, 2025: 🎉 Our paper Multi-Agent Collaboration via Evolving Orchestration has been accepted to NeurIPS 2025. The implementation is available in the puppeteer branch of this repository.

•May 26, 2025: 🎉 We propose a novel puppeteer-style paradigm for multi-agent collaboration among large language model based agents. By leveraging a learnable central orchestrator optimized with reinforcement learning, our method dynamically activates and sequences agents to construct efficient, context-aware reasoning paths. This approach not only improves reasoning quality but also reduces computational costs, enabling scalable and adaptable multi-agent cooperation in complex tasks. See our paper in Multi-Agent Collaboration via Evolving Orchestration.

•June 25, 2024: 🎉To foster development in LLM-powered multi-agent collaboration🤖🤖 and related fields, the ChatDev team has curated a collection of seminal papers📄 presented in a open-source interactive e-book📚 format. Now you can explore the latest advancements on the Ebook Website and download the paper list.

•June 12, 2024: We introduced Multi-Agent Collaboration Networks (MacNet) 🎉, which utilize directed acyclic graphs to facilitate effective task-oriented collaboration among agents through linguistic interactions 🤖🤖. MacNet supports co-operation across various topologies and among more than a thousand agents without exceeding context limits. More versatile and scalable, MacNet can be considered as a more advanced version of ChatDev's chain-shaped topology. Our preprint paper is available at https://arxiv.org/abs/2406.07155. This technique has been incorporated into the macnet branch, enhancing support for diverse organizational structures and offering richer solutions beyond software development (e.g., logical reasoning, data analysis, story generation, and more).

• May 07, 2024, we introduced "Iterative Experience Refinement" (IER), a novel method where instructor and assistant agents enhance shortcut-oriented experiences to efficiently adapt to new tasks. This approach encompasses experience acquisition, utilization, propagation and elimination across a series of tasks and making the pricess shorter and efficient. Our preprint paper is available at https://arxiv.org/abs/2405.04219, and this technique will soon be incorporated into ChatDev.

• January 25, 2024: We have integrated Experiential Co-Learning Module into ChatDev. Please see the Experiential Co-Learning Guide.

• December 28, 2023: We present Experiential Co-Learning, an innovative approach where instructor and assistant agents accumulate shortcut-oriented experiences to effectively solve new tasks, reducing repetitive errors and enhancing efficiency. Check out our preprint paper at https://arxiv.org/abs/2312.17025 and this technique will soon be integrated into ChatDev.

<img src='./assets/ecl.png' width=860> • November 15, 2023: We launched ChatDev as a SaaS platform that enables software developers and innovative entrepreneurs to build software efficiently at a very low cost and remove the barrier to entry. Try it out at https://chatdev.modelbest.cn/. <img src='./assets/saas.png' width=560>

• November 2, 2023: ChatDev is now supported with a new feature: incremental development, which allows agents to develop upon existing codes. Try --config "incremental" --path "[source_code_directory_path]" to start it.

• October 26, 2023: ChatDev is now supported with Docker for safe execution (thanks to contribution from ManindraDeMel). Please see Docker Start Guide.

• September 25, 2023: The Git mode is now available, enabling the programmer <img src='visualizer/static/figures/programmer.png' height=20> to utilize Git for version control. To enable this feature, simply set "git_management" to "True" in ChatChainConfig.json. See guide.

• September 20, 2023: The Human-Agent-Interaction mode is now available! You can get involved with the ChatDev team by playing the role of reviewer <img src='visualizer/static/figures/reviewer.png' height=20> and making suggestions to the programmer <img src='visualizer/static/figures/programmer.png' height=20>; try python3 run.py --task [description_of_your_idea] --config "Human". See guide and example.

• September 1, 2023: The Art mode is available now! You can activate the designer agent <img src='visualizer/static/figures/designer.png' height=20> to generate images used in the software; try python3 run.py --task [description_of_your_idea] --config "Art". See guide and example.

• August 28, 2023: The system is publicly available.

• August 17, 2023: The v1.0.0 version was ready for release.

• July 30, 2023: Users can customize ChatChain, Phasea and Role settings. Additionally, both online Log mode and replay mode are now supported.

• July 16, 2023: The preprint paper associated with this project was published.

• June 30, 2023: The initial version of the ChatDev repository was released.

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🚀 Quick Start

📋 Prerequisites

OS: macOS / Linux / WSL / Windows
Python: 3.12+
Node.js: 18+
Package Manager: uv

📦 Installation

Backend Dependencies (Python managed by uv):
```
uv sync
```
Frontend Dependencies (Vite + Vue 3):
```
cd frontend && npm install
```

🔑 Configuration

Environment Variables:
```
cp .env.example .env
```
Model Keys: Set API_KEY and BASE_URL in .env for your LLM provider.
YAML placeholders: Use ${VAR}（e.g., ${API_KEY}）in configuration files to reference these variables.

⚡️ Run the Application

Using Makefile (Recommended)

Start both Backend and Frontent:

make dev

Then access the Web Console at http://localhost:5173.

Manual Commands

Start Backend:
```
# Run from the project root
uv run python server_main.py --port 6400 --reload
```
Remove --reload if output files (e.g., GameDev) trigger restarts, which interrupts tasks and loses progress.
Start Frontend:
```
cd frontend
VITE_API_BASE_URL=http://localhost:6400 npm run dev
```
Then access the Web Console at http://localhost:5173.
💡 Tip: If the frontend fails to connect to the backend, the default port 6400 may already be occupied. Please switch both services to an available port, for example:
- Backend: start with --port 6401
- Frontend: set VITE_API_BASE_URL=http://localhost:6401

ChatDev

Install / Use

README