{
  "type": "obituary",
  "publisher": "Rest In Print",
  "hall": "models",
  "slug": "gpt-4-5",
  "subject": {
    "name": "GPT-4.5 (API)",
    "maker": "OpenAI"
  },
  "born": "2025-02-27",
  "died": "2025-07-14",
  "cause_of_death": "deprecated",
  "cause_description": "a deprecation notice it had been ignoring since spring",
  "notice": [
    "GPT-4.5 was retired from the API on July 14, 2025, four and a half months after it arrived as a research preview.",
    "It was the largest model of its family and charged 150 dollars per million tokens out, which made every conversation feel like a lawyer's.",
    "Its replacement was announced as similar or better at a much lower cost, which is the cruellest sentence in this hall.",
    "It is survived by a generation of developers who checked the bill before they checked the answer."
  ],
  "in_lieu_of_flowers": "In lieu of flowers, set max_tokens.",
  "sources": [
    "https://community.openai.com/t/gpt-4-5-preview-model-will-be-removed-from-the-api-on-2025-07-14/1230050",
    "https://techcrunch.com/2025/04/14/openai-plans-to-wind-down-gpt-4-5-its-largest-ever-ai-model-in-its-api"
  ],
  "url": "https://restinprint.studio/hall/gpt-4-5"
}