{
 "schema_version": "1.7.0",
 "id": "x_NXMC-2025-0047",
 "modified": "2026-10-19T02:33:38.839Z",
 "published": "2026-10-18T09:00:52.565Z",
 "summary": "MiniMax-M2: structural change at 78ba357 (2025-11-06)",
 "details": "MiniMax-M2: EOS declared as 200020 (was unset); generation that relied on the library default now stops on this token; BOS declared as 200019 (was unset); model_type \"minimax\" to \"minimax_m2\"; a different class is instantiated from the same id (2025-11-06).\n\nRepository: https://huggingface.co/MiniMaxAI/MiniMax-M2. Revisions from 78ba357af9df61620ef179ffb2b4c43ea41c2cba onward carry this change; a pin at 44cefa66f81ec7ffebcb580c02985726ef4d829e or earlier does not.\n\nChanged keys:\n- model_type: minimax -> minimax_m2 (structural)\n- quantization_config: {\"activation_scheme\":\"dynamic\",\"fmt\":\"float8_e4m3fn\",\"quant_method\":\"fp8\",\"_rest\":\"0f7293707cf5d1ba\"} -> {\"activation_scheme\":\"dynamic\",\"fmt\":\"float8_e4m3fn\",\"quant_method\":\"fp8\",\"_rest\":\"b46e96439073befc\"} (structural)\n- generation bos_token_id: unset -> 200019 (tokenizer)\n- generation eos_token_id: unset -> 200020 (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/MiniMaxAI/MiniMax-M2",
     "events": [
      {
       "introduced": "78ba357af9df61620ef179ffb2b4c43ea41c2cba"
      }
     ]
    }
   ],
   "database_specific": {
    "model": "MiniMaxAI/MiniMax-M2",
    "previous_revision": "44cefa66f81ec7ffebcb580c02985726ef4d829e"
   }
  }
 ],
 "references": [
  {
   "type": "INTRODUCED",
   "url": "https://huggingface.co/MiniMaxAI/MiniMax-M2/commit/78ba357af9df61620ef179ffb2b4c43ea41c2cba"
  },
  {
   "type": "PACKAGE",
   "url": "https://huggingface.co/MiniMaxAI/MiniMax-M2"
  },
  {
   "type": "WEB",
   "url": "https://www.neurarch.com/changes-feeds/models/MiniMaxAI/MiniMax-M2.html"
  }
 ],
 "database_specific": {
  "source": "neurarch model change tracker",
  "model": "MiniMaxAI/MiniMax-M2",
  "kind": "structural",
  "classes": [
   "structural",
   "tokenizer"
  ],
  "changed_keys": [
   {
    "file": "config",
    "key": "model_type",
    "before": "minimax",
    "after": "minimax_m2",
    "class": "structural"
   },
   {
    "file": "config",
    "key": "quantization_config",
    "before": {
     "activation_scheme": "dynamic",
     "fmt": "float8_e4m3fn",
     "quant_method": "fp8",
     "_rest": "0f7293707cf5d1ba"
    },
    "after": {
     "activation_scheme": "dynamic",
     "fmt": "float8_e4m3fn",
     "quant_method": "fp8",
     "_rest": "b46e96439073befc"
    },
    "class": "structural"
   },
   {
    "file": "generation",
    "key": "bos_token_id",
    "before": null,
    "after": 200019,
    "class": "tokenizer"
   },
   {
    "file": "generation",
    "key": "eos_token_id",
    "before": null,
    "after": 200020,
    "class": "tokenizer"
   }
  ],
  "impact": {
   "memory": true,
   "serving": true,
   "tokenizer": true,
   "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": {
    "before": null,
    "after": 200020
   },
   "bos": {
    "before": null,
    "after": 200019
   }
  },
  "commit_date": "2025-11-06T03:30:28.000Z",
  "detected_at": "2026-10-18T09:00:52.565Z",
  "detected_by": "backfill",
  "days_since_first_commit": 13,
  "license": "CC-BY-4.0"
 }
}