{
  "id": "speech-checkpoints",
  "story": "breeze-tts2-latam-es-mf-polish-2026-09",
  "title": "The best checkpoint was not the last one",
  "unit": "word error rate (%)",
  "rows": [
    {
      "label": "Step 100",
      "x": 100,
      "value": 10.2,
      "highlight": false
    },
    {
      "label": "Step 200",
      "x": 200,
      "value": 14.29,
      "highlight": false
    },
    {
      "label": "Step 300",
      "x": 300,
      "value": 26.529999999999998,
      "highlight": false
    },
    {
      "label": "Step 400",
      "x": 400,
      "value": 6.12,
      "highlight": true
    },
    {
      "label": "Step 500",
      "x": 500,
      "value": 42.86,
      "highlight": false
    },
    {
      "label": "Step 600",
      "x": 600,
      "value": 26.529999999999998,
      "highlight": false
    },
    {
      "label": "Step 700",
      "x": 700,
      "value": 18.37,
      "highlight": false
    },
    {
      "label": "Step 800",
      "x": 800,
      "value": 24.490000000000002,
      "highlight": false
    },
    {
      "label": "Step 900",
      "x": 900,
      "value": 12.24,
      "highlight": false
    },
    {
      "label": "Step 1000",
      "x": 1000,
      "value": 16.33,
      "highlight": false
    },
    {
      "label": "Step 1100",
      "x": 1100,
      "value": 14.29,
      "highlight": false
    },
    {
      "label": "Step 1200",
      "x": 1200,
      "value": 16.33,
      "highlight": false
    },
    {
      "label": "Step 1300",
      "x": 1300,
      "value": 28.57,
      "highlight": false
    },
    {
      "label": "Step 1400",
      "x": 1400,
      "value": 28.57,
      "highlight": false
    },
    {
      "label": "Step 1500",
      "x": 1500,
      "value": 42.86,
      "highlight": false
    }
  ],
  "sources": [
    {
      "path": "breeze-tts2/latam-es-mf-polish-2026-09/docs/wer_report.json",
      "url": "https://github.com/groxaxo/experimentos/blob/6550ead3945b7ecacbaac1e0767edc49a9de9747/breeze-tts2/latam-es-mf-polish-2026-09/docs/wer_report.json",
      "sha256": "5af7fc1ef9803f48a216649dea037ce2af74a1241fd4e9d3184c1d5a28319a99"
    }
  ],
  "revision": "6550ead3945b7ecacbaac1e0767edc49a9de9747",
  "scope": "Five fixed Spanish prompts · 49 reference words · STT screen",
  "caveat": "Transcript error does not measure accent, timbre or listener preference.",
  "kind": "line",
  "maximum": 48.00320000000001,
  "threshold": null,
  "decimals": 1,
  "origin": "structured measurements"
}