{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2026-0094",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "gemma4-e4b-claims-comparison: tokenizer change at 6c78064 (2026-07-24)",
 "details": "gemma4-e4b-claims-comparison: pad token \"<eos>\" to \"<pad>\"; batched training masks a different id; the chat template text changed but rendered byte-identically on the fixed conversation set (system+user, multi-turn, tool call) (2026-07-24).\n\nRepository: https://huggingface.co/k-chirkunov/gemma4-e4b-claims-comparison. Revisions from 6c780642f024d4a10192af5a1e1190da514529eb onward carry this change; a pin at 0a74f6a696f42ef40ca7ec44b6e36393fae06f91 or earlier does not.\n\nChanged keys:\n- tokenizer chat_template_sha256: 2f1b4d75d067bae3 -> 0a2c8073c878ab1d (template)\n- tokenizer pad_token: <eos> -> <pad> (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/k-chirkunov/gemma4-e4b-claims-comparison",
     "events": [
      {
       "introduced": "6c780642f024d4a10192af5a1e1190da514529eb"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "k-chirkunov/gemma4-e4b-claims-comparison",
    "previous_revision": "0a74f6a696f42ef40ca7ec44b6e36393fae06f91"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/k-chirkunov/gemma4-e4b-claims-comparison/commit/6c780642f024d4a10192af5a1e1190da514529eb"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/k-chirkunov/gemma4-e4b-claims-comparison"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/k-chirkunov/gemma4-e4b-claims-comparison.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "k-chirkunov/gemma4-e4b-claims-comparison",
  "kind": "tokenizer",
  "classes": [
   "tokenizer",
   "template"
  ],
  "changed_keys": [
   {
    "file": "tokenizer",
    "key": "chat_template_sha256",
    "before": "2f1b4d75d067bae3",
    "after": "0a2c8073c878ab1d",
    "class": "template"
   },
   {
    "file": "tokenizer",
    "key": "pad_token",
    "before": "<eos>",
    "after": "<pad>",
    "class": "tokenizer"
   }
  ],
  "impact": {
   "memory": false,
   "serving": true,
   "tokenizer": true,
   "licence": null
  },
  "breaking": false,
  "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": "2026-07-24T14:43:57.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 10,
  "license": "CC-BY-4.0"
 }
}