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Mathpix Convert vs Chandra

Chandra is cheaper per page; Mathpix Convert is faster; only Mathpix Convert supports confidence; only Chandra supports forms, multilingual.

Mathpix Convertmathpix/convertChandradatalab/chandra
TypeOCR APIOpen source
Price7 credits / page2 credits / page
Per 1,000 pages$7.00$2.00
Typical speed1.5 s / page2.0 s / page
Best forMath and scientific papersComplex layouts and handwriting
InputsPDF, imagesPDF, images
Languages30+ languages40+ languages
Max pages per request500500
Tables✓ Yes✓ Yes
Handwriting✓ Yes✓ Yes
Math✓ Yes✓ Yes
Bounding boxes✓ Yes✓ Yes
Confidence✓ YesNo
FormsNo✓ Yes
MultilingualNo✓ 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

Mathpix Convert

Specialist for math, science papers and handwritten formulas. Outputs LaTeX.

Mathpix Convert details

Chandra

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

Chandra details

Use one, fall back to the other

Request body
{
  "model": "mathpix/convert",
  "fallbacks": ["datalab/chandra"],
  "file_url": "https://example.com/document.pdf"
}

Questions

More comparisons

Mathpix Convert alternativesChandra alternatives