RapidOCR vs Kraken
RapidOCR is faster; only RapidOCR supports confidence; only Kraken supports handwriting.
RapidOCRrapidai/rapidocr | Krakenkraken/kraken | |
|---|---|---|
| Type | Open source | Open source |
| Price | 1 credit / page | 1 credit / page |
| Per 1,000 pages | $1.00 | $1.00 |
| Typical speed | 0.6 s / page | 1.5 s / page |
| Best for | Lightweight OCR on CPU or edge | Historical documents and manuscripts |
| Inputs | images | images |
| Languages | Chinese, English and more | Many scripts, incl. right-to-left |
| Max pages per request | 100 | 500 |
| Tables | No | No |
| Handwriting | No | ✓ Yes |
| Math | No | No |
| Bounding boxes | ✓ Yes | ✓ Yes |
| Confidence | ✓ Yes | 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
RapidOCR
PaddleOCR models packaged for ONNX Runtime and other engines. Easy to deploy without Paddle.
RapidOCR 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OCR engine for historical documents and manuscripts, with trainable models for unusual scripts.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": "rapidai/rapidocr",
"fallbacks": ["kraken/kraken"],
"file_url": "https://example.com/document.pdf"
}