{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2025-0182",
 "modified": "2026-11-05T13:29:03.470Z",
 "published": "2026-11-05T13:29:03.470Z",
 "summary": "moondream2: structural change at 05d640e (2025-01-09)",
 "details": "moondream2: EOS 2 removed; generation falls back to whatever the library or another file declares; generation_config.json BOS 1 removed; architectures [\"Moondream\"] to [\"HfMoondream\"]; a different class is instantiated from the same id (2025-01-09).\n\nRepository: https://huggingface.co/vikhyatk/moondream2. Revisions from 05d640e6da70c37b2473e0db8fef0233c0709ce4 onward carry this change; a pin at 3967d78d035f8beaa5de79ecb852935aed30aaa2 or earlier does not.\n\nChanged keys:\n- architectures: [\"Moondream\"] -> [\"HfMoondream\"] (structural)\n- generation bos_token_id: 1 -> unset (tokenizer)\n- generation eos_token_id: 2 -> unset (tokenizer)\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/vikhyatk/moondream2",
     "events": [
      {
       "introduced": "05d640e6da70c37b2473e0db8fef0233c0709ce4"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "vikhyatk/moondream2",
    "previous_revision": "3967d78d035f8beaa5de79ecb852935aed30aaa2"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/vikhyatk/moondream2/commit/05d640e6da70c37b2473e0db8fef0233c0709ce4"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/vikhyatk/moondream2"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/vikhyatk/moondream2.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "vikhyatk/moondream2",
  "kind": "structural",
  "classes": [
   "structural",
   "tokenizer"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "architectures",
    "before": [
     "Moondream"
    ],
    "after": [
     "HfMoondream"
    ],
    "class": "structural"
   },
   {
    "file": "generation",
    "key": "bos_token_id",
    "before": 1,
    "after": null,
    "class": "tokenizer"
   },
   {
    "file": "generation",
    "key": "eos_token_id",
    "before": 2,
    "after": null,
    "class": "tokenizer"
   }
  ],
  "impact": {
   "memory": false,
   "serving": true,
   "tokenizer": true,
   "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": {
    "before": 2,
    "after": null
   },
   "bos": {
    "before": 1,
    "after": null
   }
  },
  "commit_date": "2025-01-09T16:51:26.000Z",
  "detected_at": "2026-11-05T13:29:03.470Z",
  "detected_by": "backfill",
  "days_since_first_commit": 310,
  "license": "CC-BY-4.0"
 }
}