{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2026-0015",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "Kimi-K2.6: format-only change at 81bcaaa (2026-05-11)",
 "details": "Kimi-K2.6: format-only re-save, tokenizer class renamed between its Fast and plain spelling (one class per model since transformers v5); nothing it computes, tokenises or generates changed (2026-05-11).\n\nRepository: https://huggingface.co/moonshotai/Kimi-K2.6. Revisions from 81bcaaa7947338ce2641983d98947bca0cc1a4d4 onward carry this change; a pin at 2755962d07cb42aa2d988a35bcb65cd4a9c2de82 or earlier does not.\n\nChanged keys:\n- tokenizer tokenizer_class: TikTokenTokenizer -> TikTokenTokenizerFast (format-only)\n\nThis record says what the change does mechanically. It is not a report that anything broke for anyone.",
 "affected": [
  {
   "ranges": [
    {
     "type": "GIT",
     "repo": "https://huggingface.co/moonshotai/Kimi-K2.6",
     "events": [
      {
       "introduced": "81bcaaa7947338ce2641983d98947bca0cc1a4d4"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "moonshotai/Kimi-K2.6",
    "previous_revision": "2755962d07cb42aa2d988a35bcb65cd4a9c2de82"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/moonshotai/Kimi-K2.6/commit/81bcaaa7947338ce2641983d98947bca0cc1a4d4"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/moonshotai/Kimi-K2.6"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/moonshotai/Kimi-K2.6.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "moonshotai/Kimi-K2.6",
  "kind": "format-only",
  "classes": [
   "format-only"
  ],
  "changed_keys": [
   {
    "file": "tokenizer",
    "key": "tokenizer_class",
    "before": "TikTokenTokenizer",
    "after": "TikTokenTokenizerFast",
    "class": "format-only"
   }
  ],
  "impact": {
   "memory": false,
   "serving": true,
   "tokenizer": false,
   "licence": null
  },
  "breaking": false,
  "breaking_rule": "https://www.neurarch.com/changes-feeds/advisories/index.json#breaking_rule",
  "consequence": {
   "params": null,
   "weightsGbBf16": null,
   "trainPeakGb": null,
   "fingerprint": null,
   "context": null,
   "eos": null,
   "bos": null
  },
  "commit_date": "2026-05-11T09:48:31.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 27,
  "license": "CC-BY-4.0"
 }
}