{
 "product": "YFarmX Model Identity",
 "method": "tokenizer fingerprinting v1-50",
 "updated": "2026-08-22",
 "record_url": "https://yfarmx.com/ai/models/deepseek/deepseek-r1-0528/",
 "citation": "YFarmX Model Identity: DeepSeek: R1 0528 (deepseek/deepseek-r1-0528) evidence record. https://yfarmx.com/ai/models/deepseek/deepseek-r1-0528/",
 "record": {
  "id": "deepseek/deepseek-r1-0528",
  "slug": "deepseek/deepseek-r1-0528",
  "name": "DeepSeek: R1 0528",
  "lab": "DeepSeek",
  "alias": false,
  "variant_of": null,
  "created": 1748455170,
  "new_since_20_aug": false,
  "description": "May 28th update to the [original DeepSeek R1](/deepseek/deepseek-r1) Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active...",
  "declared": {
   "tokenizer": "DeepSeek",
   "modality": "text->text",
   "input": [
    "text"
   ],
   "context": 163840,
   "max_output": 32768,
   "pricing": {
    "prompt": "0.0000005",
    "completion": "0.00000215"
   },
   "params": [
    "frequency_penalty",
    "include_reasoning",
    "logit_bias",
    "logprobs",
    "max_tokens",
    "min_p",
    "presence_penalty",
    "reasoning",
    "repetition_penalty",
    "response_format",
    "seed",
    "stop",
    "structured_outputs",
    "temperature",
    "tool_choice",
    "tools",
    "top_k",
    "top_logprobs",
    "top_p"
   ],
   "defaults": {
    "temperature": null,
    "top_p": null,
    "frequency_penalty": null
   },
   "reasoning": {
    "mandatory": true
   },
   "hugging_face": "deepseek-ai/DeepSeek-R1-0528"
  },
  "measurement": {
   "status": "pending"
  },
  "note": null,
  "api_signature": "api_7ea3cb80",
  "api_matches": [],
  "identity": {
   "kind": "lineage",
   "family": null,
   "confidence": "unknown",
   "confidence_reason": null,
   "basis": [],
   "contradiction": null,
   "declared_vs_measured": "unknown"
  },
  "comparator": null,
  "neighbours": []
 }
}