Microsoft Semantic Kernel vs LangChain
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 #5) 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
| Microsoft Semantic Kernel | LangChain | |
|---|---|---|
| Top 11 rank | #5 / The 11 Best RAG Frameworks (2026) | #1 / The 11 Best RAG Frameworks (2026) |
| Score (out of 9.4) | 8.5 | 9.3 |
| Best for | Microsoft ecosystem integration | Most versatile & integrated |
| Pricing | Free (Open Source) | Free (Open Source) |
| HQ | Redmond, USA | San Francisco, USA |
| Founded | 2023 | 2022 |
Microsoft Semantic Kernel
The go-to framework for developers in the Microsoft ecosystem, offering strong .NET/C# and Azure integration.
learn.microsoft.com/en-us/semantic-kernel/LangChain
The most versatile framework with the largest ecosystem for building any type of LLM application, including advanced RAG.
www.langchain.com/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.