Mistral AI just dropped the fourth generation of its optical character recognition model, and the numbers suggest the French AI lab is quietly building one of the most capable document processing tools on the market.

Mistral OCR 4, unveiled on June 23, scored a 72% average win rate in human preference evaluations against competing OCR systems. The tests covered more than 600 real-world documents across over 12 languages.

What makes OCR 4 different

Mistral OCR 4 topped the public OlmOCRBench leaderboard with a score of 85.20, which serves as an independent benchmark for how well models handle real-world document extraction.

The model supports 170 languages across 10 language groups, with particular strength in rare and low-resource languages.