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Sonnet 4.5 vs Opus 4.5 (Medium)

Head-to-head OCR comparison · 102 battles · Updated March 28, 2026

Opus 4.5 (Medium)
Sonnet 4.5
Matchup69.6%(71W-31L)30.4%(31W-71L)
Overall58.2%(950W-399L)40.9%(680W-767L)
ELO16251521
Rank#6#12

In head-to-head OCR battles, Opus 4.5 (Medium) outperforms Sonnet 4.5 with a 69.6% win rate across 102 matchups. Opus 4.5 (Medium) currently ranks #6 on the OCR Arena leaderboard with an ELO rating of 1625, 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.

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