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Chandra vs Hunyuan OCR

Hunyuan OCR is faster; only Chandra supports handwriting, forms.

Chandradatalab/chandraHunyuan OCRtencent/hunyuan-ocr
TypeOpen sourceOpen source
Price2 credits / page2 credits / page
Per 1,000 pages$2.00$2.00
Typical speed2.0 s / page1.5 s / page
Best forComplex layouts and handwritingChinese documents and photos
InputsPDF, imagesPDF, images
Languages40+ languages100+ languages
Max pages per request500500
Tables✓ Yes✓ Yes
Handwriting✓ YesNo
Math✓ Yes✓ Yes
Bounding boxes✓ Yes✓ Yes
ConfidenceNoNo
Forms✓ YesNo
Multilingual✓ Yes✓ Yes
On OCRRouterComing soonComing soon

Prices are what you pay on OCRRouter. Speed is the provider's typical figure, not a benchmark we ran.

What each one is

Chandra

Datalab's OCR model that keeps layout and handles forms, tables and handwriting.

Chandra details

Hunyuan OCR

Small end-to-end OCR model from Tencent covering parsing, extraction and photo translation.

Hunyuan OCR details

Use one, fall back to the other

Request body
{
  "model": "datalab/chandra",
  "fallbacks": ["tencent/hunyuan-ocr"],
  "file_url": "https://example.com/document.pdf"
}

Questions

More comparisons

Chandra alternativesHunyuan OCR alternatives