{
  "$schema": "https://modeldeprecations.dev/api/v1/schema.json",
  "provider": "openai",
  "model": "gpt-4.1-nano",
  "name": "GPT-4.1 nano",
  "aliases": [
    "gpt-4.1-nano-2025-04-14"
  ],
  "description": "The cheapest model of the GPT-4.1 generation, and the only member of that family to be deprecated so far — gpt-4.1 and gpt-4.1-mini remain active. It was a common choice for classification and routing at high volume.",
  "released_on": "2025-04-14",
  "deprecated_on": "2026-04-22",
  "shutdown_on": "2026-10-23",
  "status": "deprecated",
  "replacements": [
    {
      "provider": "openai",
      "model": "gpt-5.6-luna",
      "recommended": true,
      "note": "Fine-tuned gpt-4.1-nano deployments are directed to gpt-5.4-nano instead; a fine-tune does not transfer and has to be re-run on the new base.",
      "external": false
    }
  ],
  "sources": [
    {
      "url": "https://developers.openai.com/api/docs/deprecations",
      "title": "OpenAI API deprecations",
      "accessed": "2026-07-30"
    }
  ],
  "last_verified": "2026-07-30",
  "computed_status": "deprecated",
  "asOf": "2026-07-30"
}