head to head · open source
Prefect vs agent-orchestrator
Prefect has 24,110 GitHub stars, 2,630 forks, 858 open issues and last shipped 2 days ago. agent-orchestrator has 14,059 stars, 1,912 forks, 711 open issues and last shipped yesterday. Prefect leads on adoption by 71% (24,110 vs 14,059 stars). Prefect is written in Python under Apache-2.0; agent-orchestrator is written in Go under Apache-2.0. Prefect has attracted 11% as many forks as stars, agent-orchestrator 14%. agent-orchestrator was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Prefect | agent-orchestrator | |
|---|---|---|
| GitHub stars | ★ 24K | ★ 14K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-11-03 | 2026-11-04 |
| Forks | ⑂ 2.6K | ⑂ 1.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Prefect if
- You weight community size — 24K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick agent-orchestrator if
- You want the agent-orchestrator 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 agent-orchestrator fits your workflow better
About Prefect
Installation · Quickstart · Build workflows · Deploy workflows · Prefect Cloud Prefect Prefect is a workflow orchestration framework for building data pipelines in Python. It's the simplest way to elevate a script into a production workflow. With Prefect, you can build resilient, dynamic data pipelines that react to the world around them and recover from unexpected changes. With just a few lines of code, data teams can confidently automate any data process with features such as scheduling, caching, retries, and event based automations. Workflow activity is tracked and can be monitored with a self hosted Prefect…
read the full Prefect overview →
About agent-orchestrator
Agent Orchestrator Plan, run, and supervise coding agents from one place. Give every coding task its own agent, workspace, and feedback loop. Plan and delegate larger outcomes with a project aware orchestrator. Follow every worker, pull request, CI run, and review in a live Kanban. Download AO • Documentation • Releases • Contributing • Discord English · 简体中文 · 日本語 · 한국어 · Español · Français · Deutsch · Português (Brasil) A workspace for agent driven development One coding agent can handle a task. Running several across a project creates a different job: deciding what matters, splitting work…
read the full agent-orchestrator overview →
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Frequently asked questions
Is Prefect or agent-orchestrator more popular?
Prefect has 24,110 GitHub stars and agent-orchestrator has 14,059. Prefect has the larger community by that measure.
Are Prefect and agent-orchestrator free?
Both are open source. Prefect is licensed under Apache-2.0 and agent-orchestrator under Apache-2.0. Neither carries a licence fee.
What is the difference between Prefect and agent-orchestrator?
Prefect is written in Python and agent-orchestrator 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, Prefect or agent-orchestrator?
Choose Prefect if you want the larger community (24,110 stars) or its Apache-2.0 licence terms. Choose agent-orchestrator if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.