{
 "product": "YFarmX Model Identity",
 "method": "tokenizer fingerprinting v1-50",
 "updated": "2026-08-22",
 "record_url": "https://yfarmx.com/ai/models/openai/gpt-4.1-nano-batch/",
 "citation": "YFarmX Model Identity: OpenAI: GPT-4.1 Nano (batch) (openai/gpt-4.1-nano:batch) evidence record. https://yfarmx.com/ai/models/openai/gpt-4.1-nano-batch/",
 "record": {
  "id": "openai/gpt-4.1-nano:batch",
  "slug": "openai/gpt-4.1-nano-batch",
  "name": "OpenAI: GPT-4.1 Nano (batch)",
  "lab": "OpenAI",
  "alias": false,
  "variant_of": "openai/gpt-4.1-nano",
  "created": 1744651369,
  "new_since_20_aug": false,
  "description": "For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million...",
  "declared": {
   "tokenizer": "GPT",
   "modality": "text+image+file->text",
   "input": [
    "image",
    "text",
    "file"
   ],
   "context": 1047576,
   "max_output": 32768,
   "pricing": {
    "prompt": "0.00000005",
    "completion": "0.0000002"
   },
   "params": [
    "max_tokens",
    "response_format",
    "seed",
    "structured_outputs",
    "temperature",
    "tool_choice",
    "tools",
    "top_p"
   ],
   "defaults": {},
   "reasoning": null,
   "hugging_face": null
  },
  "measurement": {
   "status": "excluded:variant"
  },
  "note": null,
  "api_signature": "api_4d6ed85d",
  "api_matches": [
   "openai/gpt-4.1:batch",
   "openai/gpt-4.1-mini:batch"
  ],
  "identity": {
   "kind": "lineage",
   "family": "GPT",
   "confidence": "high",
   "confidence_reason": "inherited from openai/gpt-4.1-nano: a serving variant shares its base model's tokenizer",
   "basis": [
    "inherited from openai/gpt-4.1-nano: a serving variant shares its base model's tokenizer"
   ],
   "contradiction": null,
   "declared_vs_measured": "match"
  },
  "comparator": "openai/gpt-4.1-nano",
  "neighbours": []
 }
}