head to head · open source
utopia vs MimirQ
utopia has 9,245 GitHub stars, 1,035 forks, 27 open issues and last shipped today. MimirQ has 552 stars, 86 forks, 4 open issues and last shipped 4 days ago. utopia leads on adoption by 1,575% (9,245 vs 552 stars). utopia is written in Rust under Apache-2.0; MimirQ is written in Python under Apache-2.0. utopia has attracted 11% as many forks as stars, MimirQ 16%. utopia was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 5 topic tags (graphrag, knowledge-base, knowledge-graph, llm), 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
| utopia | MimirQ | |
|---|---|---|
| GitHub stars | ★ 9.2K | ★ 552 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Rust | Python |
| Last push | 2026-09-20 | 2026-09-16 |
| Forks | ⑂ 1.0K | ⑂ 86 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick utopia if
- You weight community size — 9.2K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick MimirQ if
- You want the MimirQ feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and MimirQ fits your workflow better
About utopia
Utopia is the world's first open source enterprise world model: a self hosted knowledge substrate with a bitemporal graph and an ontology at its base layer, built by DeepLethe for teams that need agent memory, governed knowledge, and a trustworthy decision core running on hardware they control.
read the full utopia overview →
About MimirQ
MimirQ is a Chinese first, Apache 2.0 licensed enterprise RAG knowledge base written in Python that makes every stage of a document question answering pipeline — parsing, governance, chunking, indexing, retrieval, reranking, citation and regression testing — inspectable, replaceable and versioned, and it is built for teams that must audit and hand over enterprise knowledge bases rather than ship a prototype.
read the full MimirQ overview →
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Frequently asked questions
Is utopia or MimirQ more popular?
utopia has 9,245 GitHub stars and MimirQ has 552. utopia has the larger community by that measure.
Are utopia and MimirQ free?
Both are open source. utopia is licensed under Apache-2.0 and MimirQ under Apache-2.0. Neither carries a licence fee.
What is the difference between utopia and MimirQ?
utopia is written in Rust and MimirQ 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, utopia or MimirQ?
Choose utopia if you want the larger community (9,245 stars) or its Apache-2.0 licence terms. Choose MimirQ if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.