Sonnet 4.5 vs GPT-5.1 (Medium)
Head-to-head OCR comparison · 97 battles · Updated March 28, 2026
In head-to-head OCR battles, GPT-5.1 (Medium) outperforms Sonnet 4.5 with a 61.9% win rate across 97 matchups. GPT-5.1 (Medium) currently ranks #11 on the OCR Arena leaderboard with an ELO rating of 1557, while Sonnet 4.5 holds position #12 with an ELO of 1521. These rankings are based on blind community voting where users compare OCR outputs without knowing which model produced each result.
Other comparisons
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