{
  "$schema": "https://modeldeprecations.dev/api/v1/schema.json",
  "provider": "anthropic",
  "model": "claude-opus-4-20250514",
  "name": "Claude Opus 4",
  "aliases": [
    "claude-opus-4-0"
  ],
  "description": "The Opus that launched the Claude 4 generation and introduced extended thinking with tool use. It was retired in June 2026 on two months notice, alongside Sonnet 4 — the first time Anthropic retired an entire generation in one announcement.",
  "released_on": "2025-05-14",
  "deprecated_on": "2026-04-14",
  "shutdown_on": "2026-06-15",
  "status": "retired",
  "replacements": [
    {
      "provider": "anthropic",
      "model": "claude-opus-4-8",
      "recommended": true,
      "note": "Opus 4.7 and later reject temperature, top_p and top_k with a 400 error when set to a non-default value. Remove them from the request rather than tuning them down. Extended thinking has also been replaced by adaptive thinking: thinking.type: enabled is no longer accepted on Opus 4.7 and later.",
      "external": false
    }
  ],
  "sources": [
    {
      "url": "https://platform.claude.com/docs/en/about-claude/model-deprecations",
      "title": "Anthropic model deprecations",
      "accessed": "2026-07-30"
    }
  ],
  "last_verified": "2026-07-30",
  "computed_status": "retired",
  "asOf": "2026-07-30"
}