Chunk Tuner benchmarks document chunking strategies for RAG and recommends a configuration through a CLI, Python library, or MCP server.
FreeOpen source
24 alternativesjerryjliu/gpt index: GPT Index (LlamaIndex)
LlamaIndex processes documents for AI applications and provides developer documentation and integrations.
About jerryjliu/gpt index: GPT Index (LlamaIndex)
LlamaIndex (formerly GPT Index) is an open-source Python framework for building retrieval-augmented generation (RAG) and agentic AI applications. It offers core functionality plus over 300 optional integration packages for large language models, embedding models, and vector store providers.
The project also includes LlamaParse, a separate platform for agentic OCR, document parsing, structured data extraction, and document agent workflows, which can be used standalone or integrated with the LlamaIndex framework.
Key features
- Open-source Python framework for RAG and agentic AI applications
- Over 300 integration packages for LLM, embedding, vector store providers
- LlamaParse agentic OCR supporting 130+ document formats
- Structured data extraction from documents
- Document splitting and RAG indexing pipelines
- End-to-end document agent workflow builder
Best for: Developers building RAG or agentic AI document processing applications, including AI startups and enterprises automating document workflows.
Good for
- Open-source with a large ecosystem of integrations for common AI tools
- Offers both quick-start and customized deployment options for document processing
- Includes a dedicated enterprise document parsing platform for advanced OCR and extraction
Watch out for
- Primary development focus has shifted to LlamaParse, with slower OSS framework updates
- LlamaParse requires a separate user account and API key for access
- No public pricing information is provided for LlamaParse features
jerryjliu/gpt index: GPT Index (LlamaIndex) at a glance
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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jerryjliu/gpt index: GPT Index (LlamaIndex) FAQ
Can LlamaParse be used without the LlamaIndex framework?
Yes, LlamaParse can be used standalone or integrated with the LlamaIndex framework.
What document formats does LlamaParse support?
LlamaParse supports agentic OCR and parsing for over 130 document formats.
How can developers install LlamaIndex?
Developers can use a starter all-in-one package or install core LlamaIndex and add individual integration packages as needed.
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