{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2025-0002",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "DeepSeek-V3.1: structural change at 9e6c48c (2025-08-26)",
 "details": "DeepSeek-V3.1: quantization_config changed; the stored format of the weights is different (2025-08-26).\n\nRepository: https://huggingface.co/deepseek-ai/DeepSeek-V3.1. Revisions from 9e6c48c3fa6bb3e1cf684675dc02e813ca45d20f onward carry this change; a pin at c7fe4623a4fd23debe09bb40e04e46f88f4b2ddc or earlier does not.\n\nChanged keys:\n- quantization_config: {\"activation_scheme\":\"dynamic\",\"fmt\":\"e4m3\",\"quant_method\":\"fp8\",\"_rest\":\"0f7293707cf5d1ba\"} -> {\"activation_scheme\":\"dynamic\",\"fmt\":\"e4m3\",\"quant_method\":\"fp8\",\"scale_fmt\":\"ue8m0\",\"_rest\":\"0f7293707cf5d1ba\"} (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/deepseek-ai/DeepSeek-V3.1",
     "events": [
      {
       "introduced": "9e6c48c3fa6bb3e1cf684675dc02e813ca45d20f"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "deepseek-ai/DeepSeek-V3.1",
    "previous_revision": "c7fe4623a4fd23debe09bb40e04e46f88f4b2ddc"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/deepseek-ai/DeepSeek-V3.1/commit/9e6c48c3fa6bb3e1cf684675dc02e813ca45d20f"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/deepseek-ai/DeepSeek-V3.1"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/deepseek-ai/DeepSeek-V3.1.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "deepseek-ai/DeepSeek-V3.1",
  "kind": "structural",
  "classes": [
   "structural"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "quantization_config",
    "before": {
     "activation_scheme": "dynamic",
     "fmt": "e4m3",
     "quant_method": "fp8",
     "_rest": "0f7293707cf5d1ba"
    },
    "after": {
     "activation_scheme": "dynamic",
     "fmt": "e4m3",
     "quant_method": "fp8",
     "scale_fmt": "ue8m0",
     "_rest": "0f7293707cf5d1ba"
    },
    "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": "2025-08-26T08:14:11.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 5,
  "license": "CC-BY-4.0"
 }
}