claude-opus-4-1-20250805
For claude-opus-4-1-20250805, provider is Anthropic; human-readable model name is Claude Opus 4.1; lifecycle status is Retired; deprecation announced is June 5, 2026; shutdown / retirement date is August 5, 2026, recorded from its source on 2026-08-12.
- Provider
- Anthropic verified
- Model ID / API name
- claude-opus-4-1-20250805 verified
- Human-readable model name
- Claude Opus 4.1 verified
- Lifecycle status
- Retired verified
- Deprecation announced
- June 5, 2026 verified
- Shutdown / retirement date
- August 5, 2026 verified
- Recommended replacement
- claude-opus-4-8 verified
- Platform / deployment scope
- Anthropic API / Claude Platform on AWS / Microsoft Foundry our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
On June 5, 2026, Anthropic notified developers using Claude Opus 4.1 of its upcoming retirement on the Claude API. Retirement date | Deprecated model | Recommended replacement | August 5, 2026 | claude-opus-4-1-20250805 | claude-opus-4-8 | 2026-04-14: Claude Sonnet 4 and Claude Opus 4 models These models were retired June 15, 2026. On April 14, 2026, Anthropic notified developers using Claude Sonnet 4 and Claude Opus 4 models of their upcoming retirement on the Claude API.
— docs.anthropic.com, retrieved 2026-08-12
Source
- docs.anthropic.comhttps://docs.anthropic.com/en/docs/about-claude/model-deprecations