head to head · open source
utopia vs openagent
utopia has 9,245 GitHub stars, 1,035 forks, 27 open issues and last shipped today. openagent has 5,628 stars, 657 forks, 45 open issues and last shipped 3 days ago. utopia leads on adoption by 64% (9,245 vs 5,628 stars). utopia is written in Rust under Apache-2.0; openagent is written in Go under Apache-2.0. utopia has attracted 11% as many forks as stars, openagent 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-base, 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 | openagent | |
|---|---|---|
| GitHub stars | ★ 9.2K | ★ 5.6K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Rust | Go |
| Last push | 2026-09-20 | 2026-09-17 |
| Forks | ⑂ 1.0K | ⑂ 657 |
| 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 openagent if
- You want the openagent feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and openagent 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 openagent
OpenAgent is an open source, self hostable personal AI assistant written in Go under the Apache 2.0 licence, combining large language models, a retrieval augmented knowledge base, and autonomous agent loops for individuals and teams who want their own assistant running on their own machine.
read the full openagent overview →
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Frequently asked questions
Is utopia or openagent more popular?
utopia has 9,245 GitHub stars and openagent has 5,628. utopia has the larger community by that measure.
Are utopia and openagent free?
Both are open source. utopia is licensed under Apache-2.0 and openagent under Apache-2.0. Neither carries a licence fee.
What is the difference between utopia and openagent?
utopia is written in Rust and openagent in Go. 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 openagent?
Choose utopia if you want the larger community (9,245 stars) or its Apache-2.0 licence terms. Choose openagent if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.