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Tesseract vs Chunkr

Tesseract is cheaper per page; Tesseract is faster; only Chunkr supports tables, math, bounding boxes.

Tesseracttesseract/tesseractChunkrchunkr/chunkr
TypeOpen sourceOCR API
PriceFree14 credits / page
Per 1,000 pages$0.00$14.00
Typical speed0.6 s / page3.0 s / page
Best forClean printed text, freeLayout-aware chunks for RAG
InputsPDF, imagesPDF, images, DOCX
Languages100+ languagesMultilingual
Max pages per request5001,000
TablesNo✓ Yes
HandwritingNoNo
MathNo✓ Yes
Bounding boxesNo✓ Yes
ConfidenceNoNo
FormsNoNo
Multilingual✓ Yes✓ Yes
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

Chunkr

Document parsing API that segments and chunks pages for RAG. Self-hostable version available.

Chunkr details

Use one, fall back to the other

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

Questions

More comparisons

Tesseract alternativesChunkr alternatives