{
  "$schema": "https://modeldeprecations.dev/api/v1/schema.json",
  "provider": "xai",
  "model": "grok-4.20-0309-reasoning",
  "name": "Grok 4.20 Reasoning",
  "aliases": [],
  "description": "A dated 4.20 snapshot that keeps reasoning and non-reasoning as separate ids, the convention xAI had just moved away from with 4.3. Pinned snapshots like this one are the safe choice for evaluation harnesses, at the cost of being first in line whenever xAI runs its next retirement wave.",
  "status": "active",
  "replacements": [],
  "sources": [
    {
      "url": "https://docs.x.ai/developers/models",
      "title": "xAI models and pricing",
      "accessed": "2026-08-03"
    }
  ],
  "last_verified": "2026-08-03",
  "computed_status": "active",
  "asOf": "2026-08-03"
}