head to head · open source
Langchain-Chatchat vs ChuanhuChatGPT
Langchain-Chatchat has 38,643 GitHub stars, 6,266 forks, 26 open issues and last shipped 10 months ago. ChuanhuChatGPT has 15,272 stars, 2,195 forks, 129 open issues and last shipped 4 days ago. Langchain-Chatchat leads on adoption by 153% (38,643 vs 15,272 stars). Langchain-Chatchat is written in Python under Apache-2.0; ChuanhuChatGPT is written in Python under GPL-3.0. Langchain-Chatchat has attracted 16% as many forks as stars, ChuanhuChatGPT 14%. ChuanhuChatGPT was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (chatbot, chatglm, llama), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Langchain-Chatchat | ChuanhuChatGPT | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 15K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Python | Python |
| Last push | 2025-11-10 | 2026-09-16 |
| Forks | ⑂ 6.3K | ⑂ 2.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Langchain-Chatchat if
- You weight community size — 39K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick ChuanhuChatGPT if
- You want the ChuanhuChatGPT feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Python
- You evaluated both and ChuanhuChatGPT fits your workflow better
About Langchain-Chatchat
Langchain Chatchat (formerly Langchain ChatGLM) is an open source RAG and Agent application built on the Langchain framework and designed to run against local large language models such as ChatGLM, Qwen, and Llama. It lives in the Python ecosystem, is distributed under the Apache 2.0 license, and is published on PyPI as langchain chatchat . The project targets Chinese language scenarios and open source models specifically, with the stated goal of providing a knowledge base question answering solution that can run entirely offline.
read the full Langchain-Chatchat overview →
About ChuanhuChatGPT
ChuanhuChatGPT (川虎 Chat) is a free, GPL 3.0 Python and Gradio web interface that puts the ChatGPT API and more than a dozen other hosted and locally deployed large language models behind one self hostable chat UI, built for individuals and small teams who want their own front end instead of a vendor's.
read the full ChuanhuChatGPT overview →
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Frequently asked questions
Is Langchain-Chatchat or ChuanhuChatGPT more popular?
Langchain-Chatchat has 38,643 GitHub stars and ChuanhuChatGPT has 15,272. Langchain-Chatchat has the larger community by that measure.
Are Langchain-Chatchat and ChuanhuChatGPT free?
Both are open source. Langchain-Chatchat is licensed under Apache-2.0 and ChuanhuChatGPT under GPL-3.0. Neither carries a licence fee.
What is the difference between Langchain-Chatchat and ChuanhuChatGPT?
Langchain-Chatchat is written in Python and ChuanhuChatGPT in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Langchain-Chatchat or ChuanhuChatGPT?
Choose Langchain-Chatchat if you want the larger community (38,643 stars) or its Apache-2.0 licence terms. Choose ChuanhuChatGPT if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.