head to head · open source
Langchain-Chatchat vs coze-studio
Langchain-Chatchat has 38,643 GitHub stars, 6,266 forks, 26 open issues and last shipped 10 months ago. coze-studio has 21,617 stars, 3,119 forks, 568 open issues and last shipped 2 months ago. Langchain-Chatchat leads on adoption by 79% (38,643 vs 21,617 stars). Langchain-Chatchat is written in Python under Apache-2.0; coze-studio is written in TypeScript under Apache-2.0. Langchain-Chatchat has attracted 16% as many forks as stars, coze-studio 14%. coze-studio was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (chatbot), 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 | coze-studio | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 22K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2025-11-10 | 2026-07-29 |
| Forks | ⑂ 6.3K | ⑂ 3.1K |
| 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 coze-studio if
- You want the coze-studio feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and coze-studio 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 coze-studio
Coze Studio is an all in one AI agent development platform that bundles the core technologies needed to build agents — prompt engineering, RAG, plugins, and workflows — behind a single visual interface. It is derived from the Coze Development Platform, which the project states has served tens of thousands of enterprises and millions of developers, and its core engine has now been released as open source under the Apache 2.0 license. The backend is written in Golang, the frontend uses React with TypeScript, and the overall architecture is built on microservices following domain driven design (DDD) principles. It l…
read the full coze-studio overview →
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Frequently asked questions
Is Langchain-Chatchat or coze-studio more popular?
Langchain-Chatchat has 38,643 GitHub stars and coze-studio has 21,617. Langchain-Chatchat has the larger community by that measure.
Are Langchain-Chatchat and coze-studio free?
Both are open source. Langchain-Chatchat is licensed under Apache-2.0 and coze-studio under Apache-2.0. Neither carries a licence fee.
What is the difference between Langchain-Chatchat and coze-studio?
Langchain-Chatchat is written in Python and coze-studio in TypeScript. 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 coze-studio?
Choose Langchain-Chatchat if you want the larger community (38,643 stars) or its Apache-2.0 licence terms. Choose coze-studio if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.