L
LlamaIndex
41
Stack Score
Editorial pick✓ Verified working
LlamaIndex
Data framework for LLM apps with RAG focus.
Try LlamaIndex✓ Free trial available
Best for
Best for AI engineering teams building production RAG + knowledge agents.
At a glance
- Pricing
- freemium
- Setup time
- 4 hours
- Learning curve
- moderate
- Last verified
- 5/26/2026
What we love
- ✓Best RAG framework
- ✓Wide data-connector library
- ✓OSS + managed options
Where it falls short
- −API evolves quickly
- −Best with engineering team
- −Cloud tier pricing climbs
Pricing
✓ Pricing verified Jun 21, 20262 tiers
OSS
$0
perpetual
- ✓MIT
LlamaCloud
Usage
per request
- ✓Hosted parsing + retrieval
Overview
LlamaIndex is the leading data framework for LLM apps — RAG, knowledge agents, structured data extraction. OSS Python + TypeScript + managed cloud.
Key features
- ●RAG-first data framework
- ●100+ data connectors
- ●Structured extraction
- ●Agent workflows
- ●Managed cloud (LlamaCloud)
Best use cases
Production RAG
Build production RAG with curated data connectors + chunking.
Knowledge agents
Build agents that query enterprise knowledge bases reliably.
Integrations
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