{
  "name": "Best AI for Handwriting OCR? Six Systems Tested",
  "publisher": "Inksight",
  "url": "https://www.inksight-app.com/handwriting-ocr-benchmark",
  "published_at": "2026-08-10",
  "sample": {
    "pages": 48,
    "pages_per_language": 12,
    "languages": [
      "English",
      "French",
      "Bengali",
      "Arabic"
    ],
    "references": "Publisher-provided public-corpus transcripts"
  },
  "metric": {
    "name": "Median page-level character accuracy",
    "calculation": "100% minus content character error rate",
    "direction": "Higher is better"
  },
  "scope": "These results rank the six systems tested on this frozen 48-page sample. They are not a universal ranking of every handwriting OCR system.",
  "results": [
    {
      "rank": 1,
      "system": "Inksight",
      "accuracy_percent": {
        "overall": 92.78,
        "english": 97.8,
        "french": 94.87,
        "bengali": 92.66,
        "arabic": 82.36
      },
      "overall_95_percent_bootstrap_interval": [
        91.1,
        94.87
      ]
    },
    {
      "rank": 2,
      "system": "Gemini 3.6 Flash",
      "accuracy_percent": {
        "overall": 91.85,
        "english": 96.46,
        "french": 93.99,
        "bengali": 91.66,
        "arabic": 79.08
      },
      "overall_95_percent_bootstrap_interval": [
        89.51,
        93.21
      ]
    },
    {
      "rank": 3,
      "system": "Claude Opus 5",
      "accuracy_percent": {
        "overall": 90.5,
        "english": 97.06,
        "french": 94.28,
        "bengali": 90.98,
        "arabic": 66.03
      },
      "overall_95_percent_bootstrap_interval": [
        85.41,
        93.49
      ]
    },
    {
      "rank": 4,
      "system": "Claude Sonnet 5",
      "accuracy_percent": {
        "overall": 85.83,
        "english": 95.08,
        "french": 91.71,
        "bengali": 83.28,
        "arabic": 60.38
      },
      "overall_95_percent_bootstrap_interval": [
        75.84,
        89.26
      ]
    },
    {
      "rank": 5,
      "system": "GPT-5.6 Terra",
      "accuracy_percent": {
        "overall": 56.41,
        "english": 87.27,
        "french": 79.21,
        "bengali": 53.01,
        "arabic": 39.69
      },
      "overall_95_percent_bootstrap_interval": [
        50.03,
        69.61
      ]
    },
    {
      "rank": 6,
      "system": "GPT-5.6 Luna",
      "accuracy_percent": {
        "overall": 49.27,
        "english": 85.58,
        "french": 74.7,
        "bengali": 47.85,
        "arabic": 30.26
      },
      "overall_95_percent_bootstrap_interval": [
        44.29,
        57.77
      ]
    }
  ]
}