LlamaIndex

rag-systems | llm-integration

Overview

LlamaIndex (formerly GPT Index) is a data framework for connecting custom data sources to LLMs. It provides indexing, retrieval, and query interfaces optimized for RAG workflows.

Key Features

• Data connectors: PDFs, SQL, Notion, Slack, Discord, and 40+ more
• Indexing strategies: Vector index, keyword index, structured index
• Query engines: Simple, recursive, and sub-question query engines
• Agents: Integrates with LangChain as an optional orchestration layer

Relationship to Other Projects

• Competes with Haystack and LangChain in the RAG framework space
• Powers data ingestion for vLLM deployment pipelines

References

• GitHub: https://github.com/run-llama/llama_index
• Website: https://www.llamaindex.ai/