LlamaIndex vs LangGraph: Which AI Agent Is Better in 2026?
Two closely related frameworks tools, side by side. Everything here comes from our directory listing; pricing is as each maker states it. Both are listed for: build an agent.
 LlamaIndex |  LangGraph | |
|---|---|---|
| Description | Framework for agents over your data (RAG, document agents). | Framework for stateful, graph-based agent workflows. |
| Pricing model | Open source + cloud | Open source |
| Open source | Yes | Yes |
| Key features | RAG and document-agent framework; LlamaParse enterprise parsing; Free LiteParse parser | Low-level orchestration for stateful agents; Durable execution; Python and JS/TS versions |
| Best for | Agents that work over your own data: RAG and document agents | Stateful, graph-based agent workflows with explicit control flow |
| Category | frameworks | frameworks |
| Audience | For builders | For builders |
| Pricing (as stated) | Open source + paid cloud | Open source |
| Maturity | Mature | Mature |
| GitHub stars | 52,485 | 43,237 |
| Use cases | build an agent | build an agent, automate workflows |
| Link checked | 2026-10-14 | 2026-10-14 |
| Official site | Visit ↗ | Visit ↗ |
We don't run benchmarks. The recommendation below is based on the listing facts in this table, not on testing. Check each official site for current pricing and features before you choose.
Our recommendation
Choose LlamaIndex if your agent's main job is working over your data (RAG, document agents). There is also a paid cloud on top of the open-source framework.
Choose LangGraph if your main need is orchestrating a multi-step, stateful agent workflow as a graph.
FAQ
What is the difference between LlamaIndex and LangGraph?
LlamaIndex: Framework for agents over your data (RAG, document agents). LangGraph: Framework for stateful, graph-based agent workflows.
Is LlamaIndex or LangGraph open source?
LlamaIndex: Yes. LangGraph: Yes. Pricing as each maker states it: LlamaIndex, Open source + paid cloud; LangGraph, Open source.
Should I choose LlamaIndex or LangGraph?
Choose LlamaIndex if your agent's main job is working over your data (RAG, document agents). There is also a paid cloud on top of the open-source framework. Choose LangGraph if your main need is orchestrating a multi-step, stateful agent workflow as a graph.
Related: LlamaIndex · LangGraph · More frameworks tools · Best MCP servers