{
 "product": "YFarmX Model Identity",
 "method": "tokenizer fingerprinting v1-50",
 "updated": "2026-08-22",
 "record_url": "https://yfarmx.com/ai/models/qwen/qwen-plus-2025-07-28-thinking/",
 "citation": "YFarmX Model Identity: Qwen: Qwen Plus 0728 (thinking) (qwen/qwen-plus-2025-07-28:thinking) evidence record. https://yfarmx.com/ai/models/qwen/qwen-plus-2025-07-28-thinking/",
 "record": {
  "id": "qwen/qwen-plus-2025-07-28:thinking",
  "slug": "qwen/qwen-plus-2025-07-28-thinking",
  "name": "Qwen: Qwen Plus 0728 (thinking)",
  "lab": "Alibaba (Qwen)",
  "alias": false,
  "variant_of": "qwen/qwen-plus-2025-07-28",
  "created": 1757347599,
  "new_since_20_aug": false,
  "description": "Qwen Plus 0728, based on the Qwen3 foundation model, is a 1 million context hybrid reasoning model with a balanced performance, speed, and cost combination.",
  "declared": {
   "tokenizer": "Qwen3",
   "modality": "text->text",
   "input": [
    "text"
   ],
   "context": 1000000,
   "max_output": 32768,
   "pricing": {
    "prompt": "0.00000026",
    "completion": "0.00000078"
   },
   "params": [
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    "include_reasoning",
    "logprobs",
    "max_tokens",
    "presence_penalty",
    "reasoning",
    "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": false
   },
   "hugging_face": null
  },
  "measurement": {
   "status": "excluded:variant"
  },
  "note": null,
  "api_signature": "api_9fac98dc",
  "api_matches": [],
  "identity": {
   "kind": "lineage",
   "family": "Qwen",
   "confidence": "high",
   "confidence_reason": "inherited from qwen/qwen-plus-2025-07-28: a serving variant shares its base model's tokenizer",
   "basis": [
    "inherited from qwen/qwen-plus-2025-07-28: a serving variant shares its base model's tokenizer"
   ],
   "contradiction": null,
   "declared_vs_measured": "match"
  },
  "comparator": "qwen/qwen-plus-2025-07-28",
  "neighbours": []
 }
}