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SmolDocling vs Chunkr

SmolDocling is cheaper per page; SmolDocling is faster; only Chunkr supports multilingual.

SmolDoclinghuggingface/smoldoclingChunkrchunkr/chunkr
TypeOpen sourceOCR API
Price1 credit / page14 credits / page
Per 1,000 pages$1.00$14.00
Typical speed1.0 s / page3.0 s / page
Best forVery cheap page conversionLayout-aware chunks for RAG
InputsPDF, imagesPDF, images, DOCX
LanguagesMainly EnglishMultilingual
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

SmolDocling

Tiny 256M vision model from Hugging Face and IBM that outputs DocTags. Predecessor of Granite Docling.

SmolDocling 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": "huggingface/smoldocling",
  "fallbacks": ["chunkr/chunkr"],
  "file_url": "https://example.com/document.pdf"
}

Questions

More comparisons

SmolDocling alternativesChunkr alternatives