Claude Opus 3
validasserted
- Valid from
- 2026-01-05
- Valid until
- still holds
- Published
- 2026-02-25
- Recorded by AsOf
- 2026-10-28
- Checked
- 2026-10-31 · its source page states the value and the date
- Confidence
- 0.70
Sources
“We retired Claude Opus 3 on January 5, 2026, the first Anthropic model to go through a full retirement process with these commitments in place.”— what the page says, read 2026-10-31
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