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GPT vs SmolDocling

SmolDocling is cheaper per page; SmolDocling is faster; only GPT supports handwriting, multilingual; only SmolDocling supports bounding boxes.

GPTopenai/gptSmolDoclinghuggingface/smoldocling
TypeVision modelOpen source
Price11 credits / page1 credit / page
Per 1,000 pages$11.00$1.00
Typical speed2.4 s / page1.0 s / page
Best forMessy scans, custom instructionsVery cheap page conversion
InputsPDF, imagesPDF, images
Languages50+ languagesMainly English
Max pages per request100500
Tables✓ Yes✓ Yes
Handwriting✓ YesNo
Math✓ Yes✓ Yes
Bounding boxesNo✓ Yes
ConfidenceNoNo
FormsNoNo
Multilingual✓ YesNo
On OCRRouterAvailableComing soon

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

What each one is

GPT

General vision model. Good at messy scans and following extraction instructions.

GPT details

SmolDocling

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

SmolDocling details

Use one, fall back to the other

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

Questions

More comparisons

GPT alternativesSmolDocling alternatives