{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2026-0001",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "DeepSeek-R1-MXFP4: structural change at d31023d (2026-02-27)",
 "details": "DeepSeek-R1-MXFP4: quantization_config changed; the stored format of the weights is different (2026-02-27).\n\nRepository: https://huggingface.co/amd/DeepSeek-R1-MXFP4. Revisions from d31023d90e8da554e9ca98e3b0cbea85be1652e3 onward carry this change; a pin at 359d1ee20ef45aa480c19dec855f534cf622a03e or earlier does not.\n\nChanged keys:\n- quantization_config: {\"algo_config\":null,\"quant_method\":\"quark\",\"quant_mode\":\"eager_mode\",\"softmax_quant_spec\":null,\"_rest\":\"995d9e5e61000aff\"} -> {\"algo_config\":null,\"quant_method\":\"quark\",\"quant_mode\":\"eager_mode\",\"softmax_quant_spec\":null,\"_rest\":\"67e4766e2d5c3cfa\"} (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/amd/DeepSeek-R1-MXFP4",
     "events": [
      {
       "introduced": "d31023d90e8da554e9ca98e3b0cbea85be1652e3"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "amd/DeepSeek-R1-MXFP4",
    "previous_revision": "359d1ee20ef45aa480c19dec855f534cf622a03e"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/amd/DeepSeek-R1-MXFP4/commit/d31023d90e8da554e9ca98e3b0cbea85be1652e3"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/amd/DeepSeek-R1-MXFP4"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/amd/DeepSeek-R1-MXFP4.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "amd/DeepSeek-R1-MXFP4",
  "kind": "structural",
  "classes": [
   "structural"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "quantization_config",
    "before": {
     "algo_config": null,
     "quant_method": "quark",
     "quant_mode": "eager_mode",
     "softmax_quant_spec": null,
     "_rest": "995d9e5e61000aff"
    },
    "after": {
     "algo_config": null,
     "quant_method": "quark",
     "quant_mode": "eager_mode",
     "softmax_quant_spec": null,
     "_rest": "67e4766e2d5c3cfa"
    },
    "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": null,
   "eos": null,
   "bos": null
  },
  "commit_date": "2026-02-27T01:36:16.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 281,
  "license": "CC-BY-4.0"
 }
}