Gemini Flash vs Chandra
Chandra is cheaper per page; Gemini Flash is faster; only Chandra supports forms, bounding boxes.
Gemini Flashgoogle/gemini-flash | Chandradatalab/chandra | |
|---|---|---|
| Type | Vision model | Open source |
| Price | 3 credits / page | 2 credits / page |
| Per 1,000 pages | $3.00 | $2.00 |
| Typical speed | 1.6 s / page | 2.0 s / page |
| Best for | Handwriting and mixed layouts | Complex layouts and handwriting |
| Inputs | PDF, images | PDF, images |
| Languages | 100+ languages | 40+ languages |
| Max pages per request | 1,000 | 500 |
| Tables | ✓ Yes | ✓ Yes |
| Handwriting | ✓ Yes | ✓ Yes |
| Math | ✓ Yes | ✓ Yes |
| Bounding boxes | No | ✓ Yes |
| Confidence | No | No |
| Forms | No | ✓ 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
Gemini Flash
General vision model with strong handwriting and layout understanding at a low price.
Gemini Flash 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/gemini-flash",
"fallbacks": ["datalab/chandra"],
"file_url": "https://example.com/document.pdf"
}