LangChain vs LlamaIndex
A side-by-side look at 2 AI & ML tools for 2026 — the verdict, pricing, ratings, features, and what readers think.
L
llamaindex.ai
Data framework for building LLM-powered applications over custom data.
Visit LlamaIndexHead to head
| LangChain | LlamaIndex | |
|---|---|---|
| Platforms | — | Web · API · CLI |
Features compared
| LangChain | LlamaIndex | |
|---|---|---|
| Plans & pricing | ||
| Free tier | — | ✓ Yes |
| Free trial | — | ✗ No |
| Pricing model | — | Open source / usage-based cloud |
| Platforms & access | ||
| Web app | — | ✓ Yes |
| Self-hosted option | — | ✓ Yes |
| Integrations & extensibility | ||
| Public API | — | ✓ Yes |
| Native integrations | — | 100+ data connectors (LlamaHub) |
| Support | ||
| Knowledge base | — | ✓ Yes |