LangChain vs Haystack
Side-by-side from the Top 11 ranking of The 11 Best RAG Frameworks (2026). Last verified May 31, 2026.
The short answer
LangChain ranks higher on Top 11 (#1 vs #3) for Developers shipping RAG pipelines into production. The most versatile framework with the largest ecosystem for building any type of LLM application, including advanced RAG.
At a glance
| LangChain | Haystack | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best RAG Frameworks (2026) | #3 / The 11 Best RAG Frameworks (2026) |
| Score (out of 9.4) | 9.3 | 8.9 |
| Best for | Most versatile & integrated | Enterprise-grade neural search |
| Pricing | Free (Open Source) | Free (Open Source) |
| HQ | San Francisco, USA | Berlin, Germany |
| Founded | 2022 | 2018 |
LangChain
The most versatile framework with the largest ecosystem for building any type of LLM application, including advanced RAG.
www.langchain.com/Haystack
A mature, enterprise-focused framework for building scalable neural search and complex RAG pipelines.
haystack.deepset.ai/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.