Google Document AI vs Chandra
Chandra is cheaper per page; Google Document AI is faster; only Google Document AI supports confidence; only Chandra supports math.
Google Document AIgoogle/document-ai | Chandradatalab/chandra | |
|---|---|---|
| Type | OCR API | Open source |
| Price | 3 credits / page | 2 credits / page |
| Per 1,000 pages | $3.00 | $2.00 |
| Typical speed | 1.4 s / page | 2.0 s / page |
| Best for | Multilingual scans | Complex layouts and handwriting |
| Inputs | PDF, images | PDF, images |
| Languages | 200+ languages | 40+ languages |
| Max pages per request | 500 | 500 |
| Tables | ✓ Yes | ✓ Yes |
| Handwriting | ✓ Yes | ✓ Yes |
| Math | No | ✓ Yes |
| Bounding boxes | ✓ Yes | ✓ Yes |
| Confidence | ✓ Yes | No |
| Forms | ✓ Yes | ✓ Yes |
| Multilingual | ✓ Yes | ✓ Yes |
| On OCRRouter | Available | 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
Google Document AI
Google Cloud OCR with layout parsing and specialised processors.
Google Document AI 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": "google/document-ai",
"fallbacks": ["datalab/chandra"],
"file_url": "https://example.com/document.pdf"
}