{
  "run_id": "kokoro-af-heart-v1",
  "asr_model": "independent-asr",
  "items": [
    {
      "prompt_id": "hardtext-en-001",
      "reference": "The Q4 invoice total is $1,234.56 for PO-2026-05-AZ.",
      "transcript": "The Q four invoice total is one thousand two hundred thirty four dollars and fifty six cents for P O two zero two six zero five A Z.",
      "diff_summary": "$1,234.56 preserved semantically; PO code spoken token-by-token"
    }
  ]
}