{
 "product": "YFarmX Model Identity",
 "method": "tokenizer fingerprinting v1-50",
 "updated": "2026-08-22",
 "record_url": "https://yfarmx.com/ai/models/deepseek/deepseek-chat-v3.1/",
 "citation": "YFarmX Model Identity: DeepSeek: DeepSeek V3.1 (deepseek/deepseek-chat-v3.1) evidence record. Measured 2026-08-21. https://yfarmx.com/ai/models/deepseek/deepseek-chat-v3.1/",
 "record": {
  "id": "deepseek/deepseek-chat-v3.1",
  "slug": "deepseek/deepseek-chat-v3.1",
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  "description": "DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...",
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   },
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  },
  "measurement": {
   "status": "measured",
   "at": "2026-08-21",
   "run": "catalogue-sweep",
   "overhead": 7,
   "providers": [
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    "Google"
   ],
   "clean_rows": 50,
   "corrupt_rows": 0,
   "signature": "tk_869dc1cf",
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    "py-code": 25,
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   "corrupt": {},
   "observations": [
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     "clean": 50
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   ]
  },
  "note": null,
  "api_signature": "api_13422a94",
  "api_matches": [],
  "identity": {
   "kind": "lineage",
   "family": "DeepSeek",
   "confidence": "high",
   "confidence_reason": "an exact fingerprint shared with 1 model that declares the same family, without a second signal of a different kind yet",
   "basis": [
    "exact tokenizer signature shared with 1 model"
   ],
   "contradiction": null,
   "declared_vs_measured": "match"
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   },
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   {
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   },
   {
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   }
  ]
 }
}