{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2024-0021",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "InternVL2_5-4B: structural change at f01b74c (2024-11-29)",
 "details": "InternVL2_5-4B: derived parameters 3.39B to 3.70B (+310.8M, +0.62 GB of bf16 weights); tie_word_embeddings true to false; the output head is no longer shared with the embedding (2024-11-29).\n\nRepository: https://huggingface.co/OpenGVLab/InternVL2_5-4B. Revisions from f01b74c11c5317424c85e41a9b1d06a940e80c4d onward carry this change; a pin at 74b297953c78a25b652f1126267a82b2b3b147ec or earlier does not.\n\nChanged keys:\n- tie_word_embeddings: true -> false (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/OpenGVLab/InternVL2_5-4B",
     "events": [
      {
       "introduced": "f01b74c11c5317424c85e41a9b1d06a940e80c4d"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "OpenGVLab/InternVL2_5-4B",
    "previous_revision": "74b297953c78a25b652f1126267a82b2b3b147ec"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/OpenGVLab/InternVL2_5-4B/commit/f01b74c11c5317424c85e41a9b1d06a940e80c4d"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/OpenGVLab/InternVL2_5-4B"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/OpenGVLab/InternVL2_5-4B.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "OpenGVLab/InternVL2_5-4B",
  "kind": "structural",
  "classes": [
   "structural"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "tie_word_embeddings",
    "before": true,
    "after": false,
    "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": {
    "before": 3391320064,
    "after": 3702102138
   },
   "weightsGbBf16": {
    "before": 6.783,
    "after": 7.404
   },
   "trainPeakGb": {
    "before": 488.983,
    "after": 580.989
   },
   "fingerprint": {
    "before": "2795de95",
    "after": "ee16fbce"
   },
   "context": null,
   "eos": null,
   "bos": null
  },
  "commit_date": "2024-11-29T09:01:26.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 7,
  "license": "CC-BY-4.0"
 }
}