Claude · deprecatedClaude Opus 4 and 4.1

Valid from

2026-01-16

Valid until

still holds

Published

2026-01-16

Recorded by AsOf

2026-10-31

Checked

2026-10-31 · its source page states the value and the date

Confidence

0.70

Sources

“Opus 4 and 4.1 deprecated from Claude and Claude Code We’ve removed Claude Opus 4 and 4.1 from the Claude model selector and Claude Code.”— what the page says, read 2026-10-31

• Claude apps release notes, January 16, 2026primary · support.claude.com · 2026-01-16

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