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LangChain vs LlamaIndex

A side-by-side look at 2 AI & ML tools — the facts, the pricing, the features, and what readers think.

L
langchain.com

Framework for building LLM apps and agents.

Visit LangChain
L
llamaindex.ai

Data framework for building LLM-powered applications over custom data.

Visit LlamaIndex

Head to head

LangChain LlamaIndex
Endorsements 0 0
Pricing
Free tier
Free trial
Platforms Web · API · CLI
Founded
Released
HQ
Team size

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