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MinerU vs Kraken

Kraken is cheaper per page; Kraken is faster; only MinerU supports tables, math; only Kraken supports handwriting.

MinerUopendatalab/mineruKrakenkraken/kraken
TypeOpen sourceOpen source
Price2 credits / page1 credit / page
Per 1,000 pages$2.00$1.00
Typical speed2.0 s / page1.5 s / page
Best forAcademic PDFsHistorical documents and manuscripts
InputsPDF, imagesimages
Languages80+ languagesMany scripts, incl. right-to-left
Max pages per request500500
Tables✓ YesNo
HandwritingNo✓ Yes
Math✓ YesNo
Bounding boxes✓ Yes✓ Yes
ConfidenceNoNo
FormsNoNo
Multilingual✓ Yes✓ 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

MinerU

Open-source PDF to Markdown pipeline popular for academic and Chinese documents.

MinerU details

Kraken

OCR engine for historical documents and manuscripts, with trainable models for unusual scripts.

Kraken details

Use one, fall back to the other

Request body
{
  "model": "opendatalab/mineru",
  "fallbacks": ["kraken/kraken"],
  "file_url": "https://example.com/document.pdf"
}

Questions

More comparisons

MinerU alternativesKraken alternatives