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Granite Docling vs Chunkr

Granite Docling is cheaper per page; Granite Docling is faster; only Chunkr supports multilingual.

Granite Doclingibm/granite-doclingChunkrchunkr/chunkr
TypeOpen sourceOCR API
Price1 credit / page14 credits / page
Per 1,000 pages$1.00$14.00
Typical speed1.5 s / page3.0 s / page
Best forSmall-model document conversionLayout-aware chunks for RAG
InputsPDF, imagesPDF, images, DOCX
LanguagesEnglish, experimental CJK and ArabicMultilingual
Max pages per request5001,000
Tables✓ Yes✓ Yes
HandwritingNoNo
Math✓ Yes✓ Yes
Bounding boxes✓ Yes✓ Yes
ConfidenceNoNo
FormsNoNo
MultilingualNo✓ Yes
On OCRRouterComing soonComing soon

Prices are what you pay on OCRRouter. Speed is the provider's typical figure, not a benchmark we ran.

What each one is

Granite Docling

Compact IBM vision model that converts pages to DocTags for the Docling pipeline.

Granite Docling details

Chunkr

Document parsing API that segments and chunks pages for RAG. Self-hostable version available.

Chunkr details

Use one, fall back to the other

Request body
{
  "model": "ibm/granite-docling",
  "fallbacks": ["chunkr/chunkr"],
  "file_url": "https://example.com/document.pdf"
}

Questions

More comparisons

Granite Docling alternativesChunkr alternatives