{
 "provider": "anthropic",
 "provider_name": "Anthropic",
 "model_id": "claude-3-sonnet-20240229",
 "status": "retired",
 "announced": null,
 "shutdown": "2025-07-21",
 "shutdown_note": null,
 "replacement": "claude-sonnet-5-5",
 "replacement_status": "active",
 "replacement_shutdown": null,
 "replacement_final": "claude-sonnet-5-5",
 "replacement_final_status": "active",
 "replacement_provider": "anthropic",
 "replacement_final_provider": "anthropic",
 "replacement_page": "https://aideprecations.com/anthropic/claude-sonnet-5-5/",
 "replacement_final_page": "https://aideprecations.com/anthropic/claude-sonnet-5-5/",
 "replacement_kind": "different_family",
 "replacement_kind_reason": null,
 "source_url": "https://platform.claude.com/docs/en/about-claude/model-deprecations",
 "last_checked": "2026-11-06T14:15:07+00:00",
 "last_attempt": "2026-11-06T14:15:07+00:00",
 "check_status": "verified",
 "page": "https://aideprecations.com/anthropic/claude-3-sonnet-20240229/",
 "cite": "AI Deprecations, \"claude-3-sonnet-20240229 deprecation date\", https://aideprecations.com/anthropic/claude-3-sonnet-20240229/ (source: https://platform.claude.com/docs/en/about-claude/model-deprecations)",
 "license": "CC BY 4.0"
}