{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2025-0113",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "SmolLM3-3B: structural change at 988f1dd (2025-07-28)",
 "details": "SmolLM3-3B: tie_word_embeddings unset to true; the output head is now shared with the embedding (2025-07-28).\n\nRepository: https://huggingface.co/HuggingFaceTB/SmolLM3-3B. Revisions from 988f1dde6bd2a36e3e7f45777a36507ea004fe22 onward carry this change; a pin at 486a602f60b9b61d727ee978b3747824cb659f4d or earlier does not.\n\nChanged keys:\n- tie_word_embeddings: unset -> true (structural)\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/HuggingFaceTB/SmolLM3-3B",
     "events": [
      {
       "introduced": "988f1dde6bd2a36e3e7f45777a36507ea004fe22"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "HuggingFaceTB/SmolLM3-3B",
    "previous_revision": "486a602f60b9b61d727ee978b3747824cb659f4d"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/HuggingFaceTB/SmolLM3-3B/commit/988f1dde6bd2a36e3e7f45777a36507ea004fe22"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/HuggingFaceTB/SmolLM3-3B"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/HuggingFaceTB/SmolLM3-3B.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "HuggingFaceTB/SmolLM3-3B",
  "kind": "structural",
  "classes": [
   "structural"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "tie_word_embeddings",
    "before": null,
    "after": true,
    "class": "structural"
   }
  ],
  "impact": {
   "memory": true,
   "serving": true,
   "tokenizer": false,
   "licence": null
  },
  "breaking": true,
  "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": "2025-07-28T14:47:10.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 20,
  "license": "CC-BY-4.0"
 }
}