{
  "$schema": "https://modeldeprecations.dev/api/v1/schema.json",
  "provider": "openai",
  "model": "gpt-5.1-codex",
  "name": "GPT-5.1 Codex",
  "aliases": [],
  "description": "The second-generation Codex model, and the one most coding agents shipped against through late 2025. Retired July 23, 2026 alongside gpt-5-codex, gpt-5.1-codex-max, gpt-5.1-codex-mini and gpt-5.2-codex — four generations of the same line, gone on one day.",
  "deprecated_on": "2026-04-22",
  "shutdown_on": "2026-07-23",
  "status": "retired",
  "replacements": [
    {
      "provider": "openai",
      "model": "gpt-5.3-codex",
      "recommended": true,
      "note": "gpt-5.3-codex is the current hosted Codex model. Given how fast this line turns over, pin it and set a calendar reminder rather than assuming a long life.",
      "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": "retired",
  "asOf": "2026-07-30"
}