These tools integrates with

LlamaIndexvsvLLM

Data framework for RAG and LLM pipelines versus High-throughput LLM serving with PagedAttention

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Choose LlamaIndex when…

  • You're building RAG or knowledge base apps
  • Structured data querying over documents is your focus
  • You need powerful index and retrieval primitives

Choose vLLM when…

  • You're serving LLMs at high throughput in production
  • Continuous batching and PagedAttention are needed
  • You're running your own GPU inference cluster

Side-by-side comparison

Field
LlamaIndex
vLLM
Category
Pipelines & RAG
LLM Infrastructure
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
GitHub Stars
37,000
32,000

LlamaIndex

Framework specialized in data ingestion, indexing, and retrieval for LLM applications. The go-to for complex RAG pipelines.

vLLM

Production-grade LLM inference server. PagedAttention enables high throughput and efficient KV cache memory management.

Shared Connections2 tools both integrate with

Only LlamaIndex (14)

CursorLangGraphLangChainQdrantChromapgvectorWeaviateLangfuseRAGASOpenAI API

Only vLLM (3)

Together AILlamaIndexModal

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See how LlamaIndex and vLLM fit into the bigger picture — 123 tools, 304 relationships, all mapped.

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