LlamaIndex vs Microsoft AutoGen
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
LlamaIndex ranks higher on Top 11 (#2 vs #4) for Developers shipping RAG pipelines into production / Developers building autonomous AI agents and workflows. A data-centric framework excelling at advanced indexing and retrieval strategies for high-accuracy RAG.
At a glance
| LlamaIndex | Microsoft AutoGen | |
|---|---|---|
| Top 11 rank | #2 / The 11 Best RAG Frameworks | #4 / The 11 Best AI Agent Builders |
| Score (out of 9.4) | 9.2 | 8.7 |
| Best for | Best for data-centric RAG | Conversational multi-agent systems |
| Pricing | Free (Open Source) | Free (Open Source) |
| HQ | San Francisco, USA | Redmond, USA |
| Founded | 2022 | 2023 |
LlamaIndex
A data-centric framework excelling at advanced indexing and retrieval strategies for high-accuracy RAG.
www.llamaindex.ai/Microsoft AutoGen
A powerful, research-backed framework for building agents that collaborate via conversation.
microsoft.github.io/autogen/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.