Marker vs Chandra
Chandra is cheaper per page; Chandra is faster; only Chandra supports handwriting, forms.
Markerdatalab/marker | Chandradatalab/chandra | |
|---|---|---|
| Type | OCR API | Open source |
| Price | 14 credits / page | 2 credits / page |
| Per 1,000 pages | $14.00 | $2.00 |
| Typical speed | 2.5 s / page | 2.0 s / page |
| Best for | Books and research papers | Complex layouts and handwriting |
| Inputs | PDF, images, DOCX | PDF, images |
| Languages | 90+ languages | 40+ languages |
| Max pages per request | 1,000 | 500 |
| Tables | ✓ Yes | ✓ Yes |
| Handwriting | No | ✓ Yes |
| Math | ✓ Yes | ✓ Yes |
| Bounding boxes | ✓ Yes | ✓ Yes |
| Confidence | No | No |
| Forms | No | ✓ Yes |
| 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
Marker
Hosted version of the open-source Marker and Surya models. Strong on books and papers.
Marker detailsChandra
Datalab's OCR model that keeps layout and handles forms, tables and handwriting.
Chandra detailsUse one, fall back to the other
Request body
{
"model": "datalab/marker",
"fallbacks": ["datalab/chandra"],
"file_url": "https://example.com/document.pdf"
}