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SmolDocling vs Donut

Only SmolDocling supports tables, math, bounding boxes; only Donut supports forms.

SmolDoclinghuggingface/smoldoclingDonutnaver/donut
TypeOpen sourceOpen source
Price1 credit / page1 credit / page
Per 1,000 pages$1.00$1.00
Typical speed1.0 s / page1.0 s / page
Best forVery cheap page conversionReceipt and form fields after fine-tuning
InputsPDF, imagesimages
LanguagesMainly EnglishEnglish, Chinese, Japanese, Korean
Max pages per request500100
Tables✓ YesNo
HandwritingNoNo
Math✓ YesNo
Bounding boxes✓ YesNo
ConfidenceNoNo
FormsNo✓ Yes
MultilingualNoNo
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

Donut

OCR-free document understanding model. Fine-tuned for receipts, forms and document Q&A.

Donut details

Use one, fall back to the other

Request body
{
  "model": "huggingface/smoldocling",
  "fallbacks": ["naver/donut"],
  "file_url": "https://example.com/document.pdf"
}

Questions

More comparisons

SmolDocling alternativesDonut alternatives