Sonnet 4.5 vs GPT-5.1 (Medium)
Head-to-head OCR comparison · 100 battles · Updated October 23, 2026
In head-to-head OCR battles, Sonnet 4.5 trails GPT-5.1 (Medium) with a 40.0% win rate across 100 matchups. Sonnet 4.5 currently ranks #9 on the OCR Arena leaderboard with an ELO rating of 1633, while GPT-5.1 (Medium) holds position #16 with an ELO of 1381. 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 4.5 (Medium)vs Opus 4.6 (Adaptive)vs Gemini 2.5 Provs Opus 4.6 (Medium)vs Opus 4.6 (Low)vs Gemini 2.5 Flashvs Qwen3-VL-8Bvs Mistral OCR v3vs dots.ocrvs Nanonets2-3Bvs GLM-OCRvs olmOCR 2vs DeepSeek OCRvs Gemini 3 Previewvs GPT-5 (Low)vs GPT-5.2 (None)vs GPT-5.1 (Low)vs GPT-5 (Medium)vs Irisvs GPT-5.2 (Medium)