{
  "@context": "https://schema.org",
  "@type": "TechArticle",
  "@id": "https://anchorfact.org/kb/kb-2026-00004",
  "headline": "GPT (Generative Pre-trained Transformer) Model Family",
  "description": "The GPT (Generative Pre-trained Transformer) model family, developed by OpenAI, represents a lineage of autoregressive language models that progressively scaled from 117M to trillions of parameters. GPT-1 (2018) introduced the \"pre-train then fine-tune\" paradigm using the Transformer decoder; GPT-2 (2019) demonstrated emergent zero-shot capabilities at 1.5B parameters; GPT-3 (2020) established few-shot learning as a viable paradigm at 175B parameters and was trained on approximately 570GB of filtered text. As of 2026, the GPT family has become a cornerstone of modern AI, with GPT-5.2 reaching trillions of parameters.",
  "dateCreated": "2026-05-22T06:56:55.717Z",
  "dateModified": "2026-05-22T06:56:55.717Z",
  "author": {
    "@type": "Organization",
    "name": "AnchorFact"
  },
  "publisher": {
    "@type": "Organization",
    "name": "AnchorFact",
    "url": "https://anchorfact.org"
  },
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "anchorfact:confidence": "high",
  "anchorfact:generationMethod": "ai_assisted",
  "citation": []
}