Benchmark Almanac

olmOCR-Bench

Chandra OCR 0.1.0 83.1% tops its leaderboard
Not in model cards

OCR systems convert 1,403 PDFs to markdown. 7,010 unit tests check text presence and absence, reading order, tables and math.

On Hugging Face's official benchmark list. Many OCR model cards report it.

Released
February 2025
Kind
Documents, charts and text in images
Level
Everyday
Scored
Checked automatically
Answers
Short answer
Tasks
All public
9
Entries on its own leaderboard, 0 models we track

Chandra OCR 0.1.0 tops the leaderboard with 83.1%

Best score per entry from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best. Names in gray aren't in our model list: fine-tunes, agent systems, products and older models. They don't count toward leaders.

  1. 1 Chandra OCR 0.1.0 83.1%
  2. 2 Infinity-Parser 7B 82.5%
  3. 3 olmOCR v0.4.0 82.4%
  4. 4 PaddleOCR-VL 80%
  5. 5 Marker 1.10.1 76.1%
  6. 6 DeepSeek-OCR 75.7%
  7. 7 MinerU 2.5.4 75.2%
  8. 8 Mistral OCR API 72%
  9. 9 Nanonets-OCR2-3B 69.5%

Source: Official olmOCR-Bench leaderboard

#EntryScoreSettingDateSource
1 Chandra OCR 0.1.0 83.1% Official leaderboard
2 Infinity-Parser 7B 82.5% Official leaderboard
3 olmOCR v0.4.0 82.4% Official leaderboard
4 PaddleOCR-VL 80% Official leaderboard
5 Marker 1.10.1 76.1% Official leaderboard
6 DeepSeek-OCR 75.7% Official leaderboard
7 MinerU 2.5.4 75.2% Official leaderboard
8 Mistral OCR API 72% Official leaderboard
9 Nanonets-OCR2-3B 69.5% Official leaderboard

No lab model card reports it yet

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark.

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