GLM-OCR vs Granite Docling
Granite Docling is cheaper per page; GLM-OCR is faster; only GLM-OCR supports confidence, multilingual.
GLM-OCRzai/glm-ocr | Granite Doclingibm/granite-docling | |
|---|---|---|
| Type | Open source | Open source |
| Price | 2 credits / page | 1 credit / page |
| Per 1,000 pages | $2.00 | $1.00 |
| Typical speed | 1.3 s / page | 1.5 s / page |
| Best for | Low-cost general documents | Small-model document conversion |
| Inputs | PDF, images | PDF, images |
| Languages | 100+ languages | English, experimental CJK and Arabic |
| Max pages per request | 500 | 500 |
| Tables | ✓ Yes | ✓ Yes |
| Handwriting | No | No |
| Math | ✓ Yes | ✓ Yes |
| Bounding boxes | ✓ Yes | ✓ Yes |
| Confidence | ✓ Yes | No |
| Forms | No | No |
| Multilingual | ✓ Yes | No |
| 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
Granite Docling
Compact IBM vision model that converts pages to DocTags for the Docling pipeline.
Granite Docling detailsUse one, fall back to the other
Request body
{
"model": "zai/glm-ocr",
"fallbacks": ["ibm/granite-docling"],
"file_url": "https://example.com/document.pdf"
}