{
  "$schema": "https://modeldeprecations.dev/api/v1/schema.json",
  "provider": "xai",
  "model": "grok-4-fast-non-reasoning",
  "name": "Grok 4 Fast Non-Reasoning",
  "aliases": [],
  "description": "The non-thinking half of Grok 4 Fast, and the cheapest id xAI has ever served. It was the natural home for classification and extraction jobs at volume, which makes it the one in this wave most likely to be sitting in a batch pipeline nobody has looked at since it was written.",
  "shutdown_on": "2026-05-15",
  "status": "retired",
  "replacements": [
    {
      "provider": "xai",
      "model": "grok-4.3",
      "recommended": true,
      "note": "Maps to grok-4.3 with reasoning effort \"none\". This is the largest price jump in the wave: a high-volume extraction job that cost pennies on this id is now billed at flagship rates.",
      "external": false
    }
  ],
  "sources": [
    {
      "url": "https://docs.x.ai/developers/migration/may-15-retirement",
      "title": "Grok Model Retirement on May 15, 2026",
      "accessed": "2026-08-03"
    }
  ],
  "last_verified": "2026-08-03",
  "computed_status": "retired",
  "asOf": "2026-08-03"
}