{
  "$schema": "https://modeldeprecations.dev/api/v1/schema.json",
  "provider": "anthropic",
  "model": "claude-3-5-sonnet-20240620",
  "name": "Claude Sonnet 3.5",
  "aliases": [],
  "description": "The original Sonnet 3.5, from June 2024, and the model that introduced Artifacts. Anthropic later shipped a second model under the same 3.5 name, which is why anyone pinned to a date needs to check which one they meant. Retired October 2025.",
  "released_on": "2024-06-20",
  "deprecated_on": "2025-08-13",
  "shutdown_on": "2025-10-28",
  "status": "retired",
  "replacements": [
    {
      "provider": "anthropic",
      "model": "claude-sonnet-4-6",
      "recommended": true,
      "note": "Anthropic points both Sonnet 3.5 snapshots at the same successor, so the June/October distinction stops mattering after the migration.",
      "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"
}