Anthropic claude-opus-4-1-20250805 retired shutdown date

Name: Anthropic: claude-opus-4-1-20250805 retired (Shutdown)
Start: 2026-08-05
End: 2026-08-05

claude-opus-4-1-20250805 Retired June 5, 2026 August 5, 2026

R.I.P.killed 74 days ago

Change: Shutdown
Effective: Aug 5, 2026
Replacement: none named; check the source
Source: docs.anthropic.com
Vendor's words: claude-opus-4-1-20250805 Retired June 5, 2026 August 5, 2026

Don't get surprised again

Get the weekly →One email every Friday: what's dying this week and what's newly announced.