head to head · open source
utopia vs ctx
utopia has 9,245 GitHub stars, 1,035 forks, 27 open issues and last shipped today. ctx has 587 stars, 71 forks, 7 open issues and last shipped 20 days ago. utopia leads on adoption by 1,475% (9,245 vs 587 stars). utopia is written in Rust under Apache-2.0; ctx is written in Python under MIT. utopia has attracted 11% as many forks as stars, ctx 12%. utopia was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (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 | ctx | |
|---|---|---|
| GitHub stars | ★ 9.2K | ★ 587 |
| License | Apache-2.0 | MIT |
| Written in | Rust | Python |
| Last push | 2026-09-20 | 2026-08-31 |
| Forks | ⑂ 1.0K | ⑂ 71 |
| 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 ctx if
- You want the ctx feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and ctx 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 ctx
ctx is a repo aware recommendation engine for AI coding configurations — skills, agents, MCP servers, and model harnesses — built for developers and platform teams who want the cheapest setup that reliably works on their own repository.
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Frequently asked questions
Is utopia or ctx more popular?
utopia has 9,245 GitHub stars and ctx has 587. utopia has the larger community by that measure.
Are utopia and ctx free?
Both are open source. utopia is licensed under Apache-2.0 and ctx under MIT. Neither carries a licence fee.
What is the difference between utopia and ctx?
utopia is written in Rust and ctx 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 ctx?
Choose utopia if you want the larger community (9,245 stars) or its Apache-2.0 licence terms. Choose ctx if its feature set, stack or MIT licence fits better. Both are self-hostable.