head to head · open source
utopia vs openagent
utopia has 8,667 GitHub stars, 1,185 forks, 27 open issues and last shipped yesterday. openagent has 5,735 stars, 673 forks, 45 open issues and last shipped 3 days ago. utopia leads on adoption by 51% (8,667 vs 5,735 stars). utopia is written in Rust under Apache-2.0; openagent is written in Go under Apache-2.0. utopia has attracted 14% 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 | ★ 8.7K | ★ 5.7K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Rust | Go |
| Last push | 2026-11-04 | 2026-11-02 |
| Forks | ⑂ 1.2K | ⑂ 673 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick utopia if
- You weight community size — 8.7K 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 Philosophy · Quick start · Features · Roadmap The enterprise world model built by DeepLethe. It is the first open substrate for knowledge engineering that learns passively and governs itself. Where a knowledge graph or a vector store works to hold present knowledge, Utopia puts time awareness and ontology in the base layer: the knowledge system evolves as material arrives, and conflict detection, reasoning and decision making all run against that ontology. It deploys offline, so a company can stand up a knowledge foundation, a decision core its agents can trust, and a compliance audit trail on hardware it…
read the full utopia overview →
About openagent
Next generation personal AI assistant powered by LLM, RAG and agent loops — ships as a single binary, no installation needed Supporting computer use, browser use and coding agent Live Demo · Playground · Docs · Discord English 中文 What is OpenAgent? OpenAgent is an open source personal AI assistant that brings together powerful LLMs, your own knowledge base, and autonomous agent loops — all in one self hostable platform. Connect any model provider, build a RAG knowledge base from your documents, and let agents browse the web, run code, and call any MCP compatible tool on your behalf. Sponsors Thanks to APIMart…
read the full openagent overview →
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Frequently asked questions
Is utopia or openagent more popular?
utopia has 8,667 GitHub stars and openagent has 5,735. 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 (8,667 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.