Open-Source AI · AI agent framework

LangGraph vs OpenAI Swarm

LangGraph vs OpenAI Swarm compared for 2026 — features, license, ease of use, performance and which one to choose. Stateful, controllable agent graphs vs Minimal multi-agent handoffs.

Updated regularly · curated by OpenSourceAI.tech

Choose LangGraph for developers needing controllable agent workflows. Choose OpenAI Swarm for understanding agent handoff patterns.

LangGraph vs OpenAI Swarm at a glance

SpecLangGraphOpenAI Swarm
CategoryAI agent frameworkAI agent framework
TypeAgent orchestration (graphs)Agent framework (educational)
LicenseMITMIT
Runs locallyCloud-optionalNo
Primary languagePython / JSPython
Ease of useAdvancedBeginner
Best fordevelopers needing controllable agent workflowsunderstanding agent handoff patterns
GitHub stars37.1k21.8k

How LangGraph and OpenAI Swarm score

🏆 Overall edge: OpenAI Swarm — 4.3 vs 4.0 / 5
CriterionLangGraphOpenAI Swarm
Popularity4.03.5
Maintenance5.04.5
Ease of use2.55.0
Privacy3.53.5
License freedom5.05.0

Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.

What each one is

LangGraph

Agent orchestration (graphs) · MIT

LangGraph is a library for building stateful, controllable agents as graphs, giving you fine-grained control over loops, branching and persistence.

  • Explicit, controllable agent state machines
  • Persistence and human-in-the-loop built in
  • Integrates with the LangChain ecosystem
See the LangGraph page →

OpenAI Swarm

Agent framework (educational) · MIT

Swarm is a deliberately tiny framework showing how agents can hand off work to one another, built for learning rather than production.

  • Extremely small and readable
  • Clear handoff and routine patterns
  • Great teaching material
See the OpenAI Swarm page →

Key differences

LangGraph is agent orchestration (graphs), while OpenAI Swarm is agent framework (educational). LangGraph leans more advanced-friendly, whereas OpenAI Swarm is more suited to beginner users. They also differ in how they run (Cloud-optional vs No). In short, LangGraph fits developers needing controllable agent workflows, and OpenAI Swarm fits understanding agent handoff patterns.

Which should you choose?

Choose LangGraph for developers needing controllable agent workflows. Choose OpenAI Swarm for understanding agent handoff patterns.

There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.

Frequently asked questions

Is LangGraph or OpenAI Swarm easier to use?

OpenAI Swarm is generally the easier of the two to get started with, while LangGraph rewards more setup with more control.

Are LangGraph and OpenAI Swarm free?

LangGraph is free and open source (MIT), and OpenAI Swarm is free and open source (MIT). Neither charges for the core software.

Can I run LangGraph and OpenAI Swarm locally?

LangGraph: cloud-optional · OpenAI Swarm: no. Both can be used without sending your data to a third-party cloud where their setup allows.

LangGraph vs OpenAI Swarm — which should I pick in 2026?

Choose LangGraph for developers needing controllable agent workflows. Choose OpenAI Swarm for understanding agent handoff patterns.

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