LangChain vs Agency Swarm
Side-by-side from the Top 11 rankings of The 11 Best RAG Frameworks and The 11 Best AI Agent Builders. Last verified May 31, 2026.
The short answer
LangChain ranks higher on Top 11 (#1 vs #10) for Developers shipping RAG pipelines into production / Developers building autonomous AI agents and workflows. The most versatile framework with the largest ecosystem for building any type of LLM application, including advanced RAG.
At a glance
| LangChain | Agency Swarm | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best RAG Frameworks | #10 / The 11 Best AI Agent Builders |
| Score (out of 9.4) | 9.3 | 7.4 |
| Best for | Most versatile & integrated | Multi-agent framework for OpenAI Assistants |
| Pricing | Free (Open Source) | Free (Open Source) |
| HQ | San Francisco, USA | Open Source |
| Founded | 2022 | 2023 |
LangChain
The most versatile framework with the largest ecosystem for building any type of LLM application, including advanced RAG.
www.langchain.com/Agency Swarm
A specialized framework for orchestrating agents built on OpenAI's Assistants API.
github.com/VRSEN/agency-swarmMethodology and scoring weights live at /methodology. No vendor pays for placement — see about.