Sonnet 4.5 vs Opus 4.5 (Medium)
Head-to-head OCR comparison · 113 battles · Updated August 24, 2026
In head-to-head OCR battles, Opus 4.5 (Medium) outperforms Sonnet 4.5 with a 70.8% win rate across 113 matchups. Opus 4.5 (Medium) currently ranks #6 on the OCR Arena leaderboard with an ELO rating of 1666, while Sonnet 4.5 holds position #9 with an ELO of 1557. 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 4.5 (Low)vs Opus 4.6 (Low)vs Opus 4.6 (Adaptive)vs Opus 4.6 (Medium)vs Gemini 2.5 Flashvs Gemini 2.5 Provs Qwen3-VL-8Bvs Mistral OCR v3vs Nanonets2-3Bvs dots.ocrvs Gemini 3 Previewvs olmOCR 2vs GPT-5.1 (Low)vs GPT-5.1 (Medium)vs DeepSeek OCRvs GPT-5 (Low)vs GPT-5 (Medium)vs GLM-OCRvs GPT-5.2 (Medium)vs GPT-5.2 (None)vs Iris