# clm_0B0C1B1ABC81

subject: Claude (/record/claude.md)  
predicate: deprecated  
value: Claude Opus 4 model  
valid_from: 2026-04-14  
valid_to: null  
published: 2026-04-14  
recorded: 2026-11-01  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-01  
checked: 2026-11-01 · its source page states the value and the date  

> April 14, 2026  We announced the deprecation of the Claude Sonnet 4 model ( claude-sonnet-4-20250514 ) and the Claude Opus 4 model ( claude-opus-4-20250514 ), with retirement on the Claude API scheduled for June 15, 2026.

What https://platform.claude.com/docs/en/release-notes/overview#2026-04-14 says, word for word.

## Sources

- https://platform.claude.com/docs/en/release-notes/overview#2026-04-14 (primary, Anthropic, published 2026-04-14)

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