Sunsetsby Glyphclaude-sonnet-4-20250514 retirement date and replacement
Claude API · Model · retired Jun 15, 2026 (retired)
Dates
Checked Nov 9, 2026 on Anthropic's page| Retired | Jun 15, 2026 (retired) |
|---|---|
| Announced | Apr 14, 2026 |
| Replacement | claude-sonnet-5-5 |
| What it is | claude-sonnet-4-20250514 stopped answering on Claude API. |
| Source | platform.claude.com/docs/en/about-claude/model-deprecations |
Changes
ReplacementUnverified
Anthropic changed the replacement for claude-sonnet-4-20250514 from claude-sonnet-4-6 to claude-sonnet-5-5.
Oct 10Source
Around the same time on Claude API
AnthropicretiredJun 15