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Tesseract vs olmOCR

Tesseract is cheaper per page; Tesseract is faster; only Tesseract supports multilingual; only olmOCR supports tables, math, handwriting.

Tesseracttesseract/tesseractolmOCRallenai/olmocr
TypeOpen sourceOpen source
PriceFree2 credits / page
Per 1,000 pages$0.00$2.00
Typical speed0.6 s / page1.5 s / page
Best forClean printed text, freeBulk PDF to text for datasets
InputsPDF, imagesPDF, images
Languages100+ languagesMainly English
Max pages per request5001,000
TablesNo✓ Yes
HandwritingNo✓ Yes
MathNo✓ Yes
Bounding boxesNoNo
ConfidenceNoNo
FormsNoNo
Multilingual✓ YesNo
On OCRRouterAvailableComing soon

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

What each one is

Tesseract

The classic open-source OCR engine. Plain text from clean printed scans.

Tesseract details

olmOCR

Open-source vision model from Ai2 that turns PDFs into clean, reading-order text.

olmOCR details

Use one, fall back to the other

Request body
{
  "model": "tesseract/tesseract",
  "fallbacks": ["allenai/olmocr"],
  "file_url": "https://example.com/document.pdf"
}

Questions

More comparisons

Tesseract alternativesolmOCR alternatives