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claude-3-7-sonnet-20250219 retirement date and replacement

Claude API · Model · retired Feb 19, 2026 (retired)

Vendor page

Dates

Checked Sep 25, 2026 on Anthropic's page
RetiredFeb 19, 2026 (retired)
AnnouncedOct 28, 2025
Replacementclaude-sonnet-4-6
NoticeClaude Sonnet 3.7 model 
Sourceplatform.claude.com/docs/en/about-claude/model-deprecations
Anthropic

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