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Docling vs Surya

Surya is faster; only Docling supports math; only Surya supports multilingual.

Doclingibm/doclingSuryadatalab/surya
TypeOpen sourceOpen source
Price2 credits / page2 credits / page
Per 1,000 pages$2.00$2.00
Typical speed2.2 s / page1.5 s / page
Best forStructured export for RAGLayout and line-level OCR
InputsPDF, images, DOCXPDF, images
LanguagesLatin scripts, CJK90+ languages
Max pages per request500500
Tables✓ Yes✓ Yes
HandwritingNoNo
Math✓ YesNo
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

Docling

IBM's open-source document converter with a structured document model.

Docling details

Surya

Open-source OCR toolkit with line detection, layout analysis, reading order and tables.

Surya details

Use one, fall back to the other

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

Questions

More comparisons

Docling alternativesSurya alternatives