{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2024-0231",
 "modified": "2026-11-05T13:55:48.531Z",
 "published": "2026-11-01T12:02:00.579Z",
 "summary": "llama-3-8b-Instruct-bnb-4bit: structural change at a40f036 (2024-08-07)",
 "details": "llama-3-8b-Instruct-bnb-4bit: hidden size 8192 to 4096, MLP width 28672 to 14336, attention heads 64 to 32, layer count 80 to 32; derived parameters 70.55B to 8.03B (-62.52B, -125.05 GB of bf16 weights) (2024-08-07).\n\nRepository: https://huggingface.co/unsloth/llama-3-8b-Instruct-bnb-4bit. Revisions from a40f036948b6cc04637f157ffca9531afd87f300 onward carry this change; a pin at 3c840fe7fe546d38f696277298d36ca7661e6609 or earlier does not.\n\nChanged keys:\n- hidden_size: 8192 -> 4096 (structural)\n- intermediate_size: 28672 -> 14336 (structural)\n- num_attention_heads: 64 -> 32 (structural)\n- num_hidden_layers: 80 -> 32 (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/unsloth/llama-3-8b-Instruct-bnb-4bit",
     "events": [
      {
       "introduced": "a40f036948b6cc04637f157ffca9531afd87f300"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "unsloth/llama-3-8b-Instruct-bnb-4bit",
    "previous_revision": "3c840fe7fe546d38f696277298d36ca7661e6609"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/unsloth/llama-3-8b-Instruct-bnb-4bit/commit/a40f036948b6cc04637f157ffca9531afd87f300"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/unsloth/llama-3-8b-Instruct-bnb-4bit"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/unsloth/llama-3-8b-Instruct-bnb-4bit.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "unsloth/llama-3-8b-Instruct-bnb-4bit",
  "kind": "structural",
  "classes": [
   "structural"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "hidden_size",
    "before": 8192,
    "after": 4096,
    "class": "structural"
   },
   {
    "file": "config",
    "key": "intermediate_size",
    "before": 28672,
    "after": 14336,
    "class": "structural"
   },
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    "file": "config",
    "key": "num_attention_heads",
    "before": 64,
    "after": 32,
    "class": "structural"
   },
   {
    "file": "config",
    "key": "num_hidden_layers",
    "before": 80,
    "after": 32,
    "class": "structural"
   }
  ],
  "impact": {
   "memory": true,
   "serving": false,
   "tokenizer": false,
   "licence": null
  },
  "breaking": true,
  "breaking_rule": "https://www.neurarch.com/changes-feeds/advisories/index.json#breaking_rule",
  "consequence": {
   "params": {
    "before": 70553834752,
    "after": 8030389504
   },
   "weightsGbBf16": {
    "before": 141.108,
    "after": 16.061
   },
   "trainPeakGb": {
    "before": 3097.151,
    "after": 548.299
   },
   "fingerprint": {
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    "after": "575ab399"
   },
   "context": null,
   "eos": null,
   "bos": null
  },
  "commit_date": "2024-08-07T00:13:45.000Z",
  "detected_at": "2026-11-01T12:02:00.579Z",
  "detected_by": "backfill",
  "days_since_first_commit": 110,
  "license": "CC-BY-4.0"
 }
}