Unlimited OCR vs Kraken
Kraken is cheaper per page; Unlimited OCR is faster; only Unlimited OCR supports tables, math; only Kraken supports handwriting.
Unlimited OCRbaidu/unlimited-ocr | Krakenkraken/kraken | |
|---|---|---|
| Type | Open source | Open source |
| Price | 2 credits / page | 1 credit / page |
| Per 1,000 pages | $2.00 | $1.00 |
| Typical speed | 1.2 s / page | 1.5 s / page |
| Best for | Books and very long documents | Historical documents and manuscripts |
| Inputs | PDF, images | images |
| Languages | 30+ languages | Many scripts, incl. right-to-left |
| Max pages per request | 1,000 | 500 |
| Tables | ✓ Yes | No |
| Handwriting | No | ✓ Yes |
| Math | ✓ Yes | No |
| Bounding boxes | ✓ Yes | ✓ Yes |
| Confidence | No | No |
| Forms | No | No |
| Multilingual | ✓ Yes | ✓ Yes |
| 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
Unlimited OCR
Open-source model from Baidu that reads hundreds of pages in one pass with flat memory use.
Unlimited OCR detailsKraken
OCR engine for historical documents and manuscripts, with trainable models for unusual scripts.
Kraken detailsUse one, fall back to the other
Request body
{
"model": "baidu/unlimited-ocr",
"fallbacks": ["kraken/kraken"],
"file_url": "https://example.com/document.pdf"
}