Kraken vs Granite Docling
Only Kraken supports handwriting, multilingual; only Granite Docling supports tables, math.
Krakenkraken/kraken | Granite Doclingibm/granite-docling | |
|---|---|---|
| Type | Open source | Open source |
| Price | 1 credit / page | 1 credit / page |
| Per 1,000 pages | $1.00 | $1.00 |
| Typical speed | 1.5 s / page | 1.5 s / page |
| Best for | Historical documents and manuscripts | Small-model document conversion |
| Inputs | images | PDF, images |
| Languages | Many scripts, incl. right-to-left | English, experimental CJK and Arabic |
| Max pages per request | 500 | 500 |
| Tables | No | ✓ Yes |
| Handwriting | ✓ Yes | No |
| Math | No | ✓ Yes |
| Bounding boxes | ✓ Yes | ✓ Yes |
| Confidence | No | No |
| Forms | No | No |
| Multilingual | ✓ Yes | No |
| On OCRRouter | Coming soon | Coming soon |
Prices are what you pay on OCRRouter. Speed is the provider's typical figure, not a benchmark we ran.
What each one is
Kraken
OCR engine for historical documents and manuscripts, with trainable models for unusual scripts.
Kraken detailsGranite Docling
Compact IBM vision model that converts pages to DocTags for the Docling pipeline.
Granite Docling detailsUse one, fall back to the other
Request body
{
"model": "kraken/kraken",
"fallbacks": ["ibm/granite-docling"],
"file_url": "https://example.com/document.pdf"
}