{
  "$schema": "https://modeldeprecations.dev/api/v1/schema.json",
  "provider": "openai",
  "model": "o4-mini",
  "name": "o4-mini",
  "aliases": [
    "o4-mini-2025-04-16"
  ],
  "description": "The last of the mini reasoning models, and the named successor when o1-mini was retired in 2025 — which makes it the second stop on a migration path that now needs a third. Deprecated April 2026, shutting down October 2026.",
  "released_on": "2025-04-16",
  "deprecated_on": "2026-04-22",
  "shutdown_on": "2026-10-23",
  "status": "deprecated",
  "replacements": [
    {
      "provider": "openai",
      "model": "gpt-5.6-terra",
      "recommended": true,
      "note": "Note that OpenAI points o4-mini at Terra, not at Sol: the replacement for a small reasoning model is now a general model, not a smaller reasoner.",
      "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"
}