All comparisons
/// Compare
LangChain vs LlamaIndex for RAG apps.
A senior-engineering POV on LangChain vs LlamaIndex — what changes in 2026, where each wins, and which we'd default to for greenfield builds.
| Dimension | LangChain | LlamaIndex |
|---|---|---|
| Category leader | LangChain | LlamaIndex |
| Adoption in 2026 | Widespread | Strong niche |
| Hiring market | Broad | Focused |
| Learning curve | Moderate | Moderate |
/// Origami's take
LlamaIndex when the app is retrieval-first. LangChain for broader orchestration. Neither is required — direct SDKs often win.