3-point gap · editorial
LangChain vs LlamaIndex
Compared for Agents & frameworks.
Higher score
LangChain
83 · A-tier
Application code that needs tools, retrieval, and a large example ecosystem.
Free $0
The other pick
LlamaIndex
80 · A-tier
Document Q&A and agents that have to cite your own files.
Free $0
Sub-scores
| Part | LangChain | LlamaIndex |
|---|---|---|
| Overall | 83 | 80 |
| Capability | 86 | 84 |
| Ease | 70 | 70 |
| Value | 90 | 88 |
| Momentum | 84 | 78 |
Full lists: Best AI agent frameworks
Questions
Which is better, LangChain or LlamaIndex?
LangChain scores higher here: 83 versus 80. The widest sub-score gap is momentum, where LangChain leads by 6. Choose LangChain when this is the job: Application code that needs tools, retrieval, and a large example ecosystem. Choose LlamaIndex when this is the job: Document Q&A and agents that have to cite your own files.
Which is cheaper, LangChain or LlamaIndex?
We do not print a dollar winner. LangChain is free ($0). LlamaIndex is free ($0). LangChain is ahead on the editorial score, not on a verified invoice. Open both pricing pages.
When should you ignore the higher score?
Ignore LangChain's lead when document Q&A and agents that have to cite your own files. The score is a default, not a mandate.