LlamaIndexUnclaimed

LlamaIndex is the leading data framework for building retrieval-augmented generation (RAG) and knowledge-grounded AI applications. The open-source library provides connectors for hundreds of data sources, indexing strategies for optimal retrieval, and query engines that combine LLM reasoning with structured data access.

LlamaCloud, the managed platform, provides production-grade data parsing, indexing, and retrieval infrastructure. The platform handles complex document formats, maintains indexes at scale, and provides evaluation tools for measuring retrieval quality.

LlamaIndex has become a foundational building block for AI applications that need to ground LLM responses in proprietary data, serving developers building everything from internal Q&A systems to customer-facing AI assistants.

LlamaIndex (open-source): Free, MIT licensed

LlamaCloud Free: Limited usage for prototyping

LlamaCloud Starter: $50/month - Production-grade parsing and indexing

Enterprise: Custom - Dedicated infrastructure, SLA