{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2024-0124",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "Llama-3.1-8B: structural change at f6259a5 (2024-07-16)",
 "details": "Llama-3.1-8B: context window 16384 to 131072 tokens (2024-07-16).\n\nRepository: https://huggingface.co/meta-llama/Llama-3.1-8B. Revisions from f6259a50a13f2bdc59b651fc272027fb8528f276 onward carry this change; a pin at 01d63cd05cf2f6b5151f87509c7a5954d8a64e62 or earlier does not.\n\nChanged keys:\n- max_position_embeddings: 16384 -> 131072 (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/meta-llama/Llama-3.1-8B",
     "events": [
      {
       "introduced": "f6259a50a13f2bdc59b651fc272027fb8528f276"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "meta-llama/Llama-3.1-8B",
    "previous_revision": "01d63cd05cf2f6b5151f87509c7a5954d8a64e62"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/meta-llama/Llama-3.1-8B/commit/f6259a50a13f2bdc59b651fc272027fb8528f276"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/meta-llama/Llama-3.1-8B"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/meta-llama/Llama-3.1-8B.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "meta-llama/Llama-3.1-8B",
  "kind": "structural",
  "classes": [
   "structural"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "max_position_embeddings",
    "before": 16384,
    "after": 131072,
    "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": {
    "before": 16384,
    "after": 131072
   },
   "eos": null,
   "bos": null
  },
  "commit_date": "2024-07-16T21:47:51.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 1,
  "license": "CC-BY-4.0"
 }
}