Claude Sonnet 4 model
validasserted
- Valid from
- 2026-04-14
- Valid until
- still holds
- Published
- 2026-04-14
- Recorded by AsOf
- 2026-11-01
- Checked
- 2026-11-01 · its source page states the value and the date
- Confidence
- 0.70
Sources
“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 the page says, read 2026-11-01
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