LlamaIndex

An open-source Python framework for building RAG and agentic applications over private data, with connectors, indexes, query engines, agents and event-driven Workflows. Companion commercial services LlamaParse and LlamaCloud add document parsing and managed retrieval.

Website

https://www.llamaindex.ai

Who it's for

Builders grounding agents in their own documents, databases and APIs, and teams dealing with hard-to-parse documents.

Pricing

Framework free and open source (MIT). LlamaParse/LlamaCloud offers a free tier; paid prices not stated.

Category

Agent frameworks & orchestration

Last verified

2026-10-22 (current)

Confidence

high

Key facts

• Python 3.10+
• MIT licence
• 300+ integration packages (vector stores, LLMs, readers, tools)
• Event-driven Workflows; FunctionAgent and multi-agent AgentWorkflow
• LlamaParse handles agentic OCR and structured extraction

Sources

Every claim above is drawn from these; we do not publish unsourced specifications.

• https://docs.llamaindex.ai/en/stable/
• https://github.com/run-llama/llama_index

Notes & uncertainties

LlamaCloud paid tier pricing is not published on the pages checked.

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