head to head · open source
Langchain-Chatchat vs aidea
Langchain-Chatchat has 38,643 GitHub stars, 6,266 forks, 26 open issues and last shipped 10 months ago. aidea has 6,932 stars, 1,043 forks, 23 open issues and last shipped 7 months ago. Langchain-Chatchat leads on adoption by 457% (38,643 vs 6,932 stars). Langchain-Chatchat is written in Python under Apache-2.0; aidea is written in Dart under MIT. Langchain-Chatchat has attracted 16% as many forks as stars, aidea 15%. aidea was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (chatbot, gpt), 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 | aidea | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 6.9K |
| License | Apache-2.0 | MIT |
| Written in | Python | Dart |
| Last push | 2025-11-10 | 2026-03-04 |
| Forks | ⑂ 6.3K | ⑂ 1.0K |
| 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 aidea if
- You want the aidea feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Dart
- You evaluated both and aidea 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 aidea
AIdea is an MIT licensed, open source Flutter application that gathers mainstream large language models and image generation models behind one interface, built both for end users who want a single chat and image client and for operators who would rather run that client on their own infrastructure than depend on a managed cloud service.
read the full aidea overview →
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Frequently asked questions
Is Langchain-Chatchat or aidea more popular?
Langchain-Chatchat has 38,643 GitHub stars and aidea has 6,932. Langchain-Chatchat has the larger community by that measure.
Are Langchain-Chatchat and aidea free?
Both are open source. Langchain-Chatchat is licensed under Apache-2.0 and aidea under MIT. Neither carries a licence fee.
What is the difference between Langchain-Chatchat and aidea?
Langchain-Chatchat is written in Python and aidea in Dart. 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 aidea?
Choose Langchain-Chatchat if you want the larger community (38,643 stars) or its Apache-2.0 licence terms. Choose aidea if its feature set, stack or MIT licence fits better. Both are self-hostable.