Donut vs Chunkr
Donut is cheaper per page; Donut is faster; only Donut supports forms; only Chunkr supports tables, math, bounding boxes, multilingual.
Donutnaver/donut | Chunkrchunkr/chunkr | |
|---|---|---|
| Type | Open source | OCR API |
| Price | 1 credit / page | 14 credits / page |
| Per 1,000 pages | $1.00 | $14.00 |
| Typical speed | 1.0 s / page | 3.0 s / page |
| Best for | Receipt and form fields after fine-tuning | Layout-aware chunks for RAG |
| Inputs | images | PDF, images, DOCX |
| Languages | English, Chinese, Japanese, Korean | Multilingual |
| Max pages per request | 100 | 1,000 |
| Tables | No | ✓ Yes |
| Handwriting | No | No |
| Math | No | ✓ Yes |
| Bounding boxes | No | ✓ Yes |
| Confidence | No | No |
| Forms | ✓ Yes | No |
| Multilingual | No | ✓ 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
Donut
OCR-free document understanding model. Fine-tuned for receipts, forms and document Q&A.
Donut detailsChunkr
Document parsing API that segments and chunks pages for RAG. Self-hostable version available.
Chunkr detailsUse one, fall back to the other
Request body
{
"model": "naver/donut",
"fallbacks": ["chunkr/chunkr"],
"file_url": "https://example.com/document.pdf"
}