Claude Sonnet 3.5 models
validasserted
- Valid from
- 2025-10-28
- Valid until
- still holds
- Published
- 2025-10-28
- Recorded by AsOf
- 2026-11-03
- Checked
- 2026-11-03 · its source page states the value and the date
- Confidence
- 0.70
Sources
“October 28, 2025 We announced the deprecation of the Claude Sonnet 3.7 model. Read more in Model deprecations . We’ve retired the Claude Sonnet 3.5 models. All requests to these models will now return an error.”— what the page says, read 2026-11-03
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