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📖 The AI Tool Bible

Docling vs LlamaIndex

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

 
Docling
RAG
LlamaIndex
RAG
TaglineOpen-source document parsing for AI: PDFs, Office files, audio and video into clean, structured Markdown/JSONData framework for connecting LLMs to your data.
CategoryRAGRAG
PricingFree· Free and open source under MIT License. Hosted by the LF AI & Data Foundation; no paid tiers.Freemium· Free open-source; LlamaCloud paid
ModelGraniteDocling 258M and other vision-language modelsBYO (Claude / GPT / open)
Editorial score8.7 / 10
Use cases
RAG document ingestionPDF table extractionScientific paper parsingFinancial filing analysis (XBRL, JATS)Enterprise knowledge base preparationDoc-QA chatbotsAgent-based document workflows via MCPOCR for scanned archivesAudio and video transcription for multimodal RAGConverting Office documents to Markdown for LLMs
RAGdata ingestionindexing
Pros
  • Broad format coverage: PDF, Office, HTML, EPUB, images, LaTeX, email, plus audio and video
  • Genuinely strong PDF parsing: layout, reading order, tables, formulas, and code blocks preserved
  • Runs fully local, so sensitive or air-gapped document processing stays on your own infrastructure
  • Native integrations with LangChain, LlamaIndex, CrewAI, and Haystack shorten the path to a working RAG pipeline
  • Multiple delivery modes: Python library, CLI, HTTP API server, and MCP server for agents
  • Purpose-built small VLMs (GraniteDocling 258M) keep GPU/CPU costs modest compared to calling frontier models per page
  • Permissive MIT license and Linux Foundation governance make it safe for commercial adoption
  • Focused on retrieval (not general agent stuff)
  • Many ingestion connectors
  • Strong production patterns
  • LlamaCloud for managed ingestion
Cons
  • Python-only public library; non-Python stacks must go through the HTTP or MCP server
  • High-fidelity parsing of complex PDFs benefits from a GPU, which raises the bar for self-hosting
  • No hosted SaaS or managed service: teams must run and maintain their own deployment
  • Documentation and examples assume engineering fluency; there is no non-technical UI
  • Extraction quality on unusual layouts (multi-column scans, handwriting) still varies and may need post-processing
  • API surface is large
  • Documentation can be hard to navigate
Websitedocling-project.github.iowww.llamaindex.ai
Pick Docling if
  • Broad format coverage: PDF, Office, HTML, EPUB, images, LaTeX, email, plus audio and video
  • Genuinely strong PDF parsing: layout, reading order, tables, formulas, and code blocks preserved
  • Runs fully local, so sensitive or air-gapped document processing stays on your own infrastructure
  • Native integrations with LangChain, LlamaIndex, CrewAI, and Haystack shorten the path to a working RAG pipeline
Pick LlamaIndex if
  • Focused on retrieval (not general agent stuff)
  • Many ingestion connectors
  • Strong production patterns
  • LlamaCloud for managed ingestion