head to head · open source
Yuxi vs simba
Yuxi has 7,121 GitHub stars, 1,120 forks, 90 open issues and last shipped 2 days ago. simba has 1,541 stars, 114 forks, 6 open issues and last shipped 3 months ago. Yuxi leads on adoption by 362% (7,121 vs 1,541 stars). Yuxi is written in Python under MIT; simba is written in TypeScript under Apache-2.0. Yuxi has attracted 16% as many forks as stars, simba 7%. Yuxi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (knowledge-base), 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
| Yuxi | simba | |
|---|---|---|
| GitHub stars | ★ 7.1K | ★ 1.5K |
| License | MIT | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-09-18 | 2026-06-18 |
| Forks | ⑂ 1.1K | ⑂ 114 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Yuxi if
- You weight community size — 7.1K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick simba if
- You want the simba 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 simba fits your workflow better
About Yuxi
Yuxi is a self hosted, multi tenant knowledge agent platform built in Python under the MIT license. It places knowledge base retrieval, knowledge graphs, LangGraph multi agent orchestration, MCP and Skills, sandboxed tools and permission management inside one workspace, with a Vue 3 and Ant Design front end and a FastAPI back end driven by a LangGraph and ARQ worker layer. The project ships as a Docker Compose deployment and lives in the Python ecosystem, with storage split across PostgreSQL, Redis, MinIO, Milvus and Neo4j, and document processing handled by MinerU, PaddleX and RapidOCR.
About simba
Simba is an open source, self hosted customer service assistant built for teams that need full control over the AI answering questions from their own knowledge base, with evaluation and monitoring designed in rather than bolted on.
read the full simba overview →
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Frequently asked questions
Is Yuxi or simba more popular?
Yuxi has 7,121 GitHub stars and simba has 1,541. Yuxi has the larger community by that measure.
Are Yuxi and simba free?
Both are open source. Yuxi is licensed under MIT and simba under Apache-2.0. Neither carries a licence fee.
What is the difference between Yuxi and simba?
Yuxi is written in Python and simba 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, Yuxi or simba?
Choose Yuxi if you want the larger community (7,121 stars) or its MIT licence terms. Choose simba if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.