Sonnet 4.5 vs Opus 4.5 (Medium)
Head-to-head OCR comparison · 103 battles · Updated May 18, 2026
In head-to-head OCR battles, Opus 4.5 (Medium) outperforms Sonnet 4.5 with a 69.9% win rate across 103 matchups. Opus 4.5 (Medium) currently ranks #2 on the OCR Arena leaderboard with an ELO rating of 1707, while Sonnet 4.5 holds position #10 with an ELO of 1529. These rankings are based on blind community voting where users compare OCR outputs without knowing which model produced each result.
Other comparisons
vs Gemini 3 Flashvs Opus 4.6 (Low)vs Opus 4.6 (Adaptive)vs Gemini 2.5 Provs Opus 4.6 (Medium)vs Opus 4.5 (Low)vs Gemini 2.5 Flashvs Gemini 3 Previewvs Mistral OCR v3vs GPT-5.1 (Medium)vs GPT-5.1 (Low)vs Qwen3-VL-8Bvs GPT-5 (Medium)vs GPT-5 (Low)vs GPT-5.2 (Medium)vs Nanonets2-3Bvs Irisvs GPT-5.2 (None)vs DeepSeek OCRvs dots.ocrvs olmOCR 2vs GLM-OCR