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123 tools · 10 stacks
GitHub

AI tools are all over the place. This is the full landscape — 123 tools across 12 categories, mapped and connected. Ready to narrow it down? Build your stack →

Stack Layers
What are you building and how is it defined?
How do you write and ship code?
How does your AI think and act?
Which models and infrastructure power it?
How do you build, observe, and extend it?
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These tools integrates with
LlamaIndex
vs
OpenAI API

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 OpenAI API when…

  • •You need the broadest ecosystem and most integrations
  • •GPT-4 or o-series reasoning models are required
  • •Assistants API, fine-tuning, or batch API are needed
Field
LlamaIndex
OpenAI API
Category
Pipelines & RAG
LLM Infrastructure
Type
OSS
SaaS
Free Tier
✓ Yes
✗ No
Plans
—
API: Per token
Stars
⭐ 37,000
—

LlamaIndex

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

OpenAI API

API access to GPT-4o, o1, and other OpenAI models including embeddings and image generation. The most widely used LLM API in production.

LlamaIndex Website ↗GitHub ↗
OpenAI API Website ↗

Shared Connections (4)

LangChainLangfuseLiteLLMAnthropic API

Only LlamaIndex (12)

CursorLangGraphQdrantChromapgvectorWeaviateOllamaRAGAS

Only OpenAI API (17)

CrewAIAutoGenLlamaIndexMastraPydanticAIsmolagentsAgnoPortKey
See full comparison in Explore →