OCRRouterGet API key

GPT vs Granite Docling

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

GPTopenai/gptGranite Doclingibm/granite-docling
TypeVision modelOpen source
Price11 credits / page1 credit / page
Per 1,000 pages$11.00$1.00
Typical speed2.4 s / page1.5 s / page
Best forMessy scans, custom instructionsSmall-model document conversion
InputsPDF, imagesPDF, images
Languages50+ languagesEnglish, experimental CJK and Arabic
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

Granite Docling

Compact IBM vision model that converts pages to DocTags for the Docling pipeline.

Granite Docling details

Use one, fall back to the other

Request body
{
  "model": "openai/gpt",
  "fallbacks": ["ibm/granite-docling"],
  "file_url": "https://example.com/document.pdf"
}

Questions

More comparisons

GPT alternativesGranite Docling alternatives