LlamaIndex vs LangChain
| LlamaIndex | LangChain | |
|---|---|---|
| Summary | Data framework for connecting LLMs to your data, with agent and workflow abstractions for RAG-heavy agents. | Popular framework for building LLM applications and agents with composable chains, tools, retrievers and integrations. |
| Category | Agent Frameworks | Agent Frameworks |
| Platforms | Python, TypeScript | Python, TypeScript |
| Pricing | Open source + paid cloud | Open source (MIT) |
| Official site | https://www.llamaindex.ai | https://www.langchain.com |
Which should you choose?
Choose LlamaIndex if its approach (Python, TypeScript; Open source + paid cloud) fits your stack. Choose LangChain if you prefer Python, TypeScript and open source (mit). Try both on a small task before you commit.