Retired
claude-opus-4-1-20250805
Anthropic Claude: retired on 5 Aug 2026 (2 months ago). The recommended replacement is claude-opus-4-8.
What to do
claude-opus-4-1-20250805 is retired: calls to it fail. Point anything still using it to claude-opus-4-8.
Recommended replacement claude-opus-4-8Deprecated too, with no retirement date yetRetired
On 5 Aug 2026
5 JunRetirement announced · 61 days' notice
Other Anthropic Claude models retiring
Shutdown dates and recommended replacements, as the providers publish them| Model | Retires | Move to | Announced |
|---|---|---|---|
| claude-sonnet-4-5-20250929 | 30 Nov 2026 (in 47 days) | claude-sonnet-5-5 | 30 Sep 2026 |
16 models with no announced retirement date
| claude-fable-5 | Active · retires not before 9 Jun 2027 | — | — |
|---|---|---|---|
| claude-fable-5-1 | Active · retires not before 1 Sep 2027 | — | — |
| claude-haiku-4-5-20251001 | Active · retires not before 15 Oct 2026 | — | — |
| claude-haiku-5-5 | Active · retires not before 7 Oct 2027 | — | — |
| claude-mythos-5 | Active · retires not before 9 Jun 2027 | — | — |
| claude-mythos-5-1 | Active · retires not before 1 Sep 2027 | — | — |
| claude-mythos-preview | Deprecated · retirement date not announced | — | — |
| claude-opus-4-5-20251101 | Active · retires not before 24 Nov 2026 | — | — |
| claude-opus-4-6 | Active · retires not before 5 Feb 2027 | — | — |
| claude-opus-4-7 | Active · retires not before 16 Apr 2027 | — | — |
| claude-opus-4-8 | Active · retires not before 28 May 2027 | — | — |
| claude-opus-5 | Active · retires not before 24 Jul 2027 | — | — |
| claude-opus-5-5 | Active · retires not before 22 Sep 2027 | — | — |
| claude-sonnet-4-6 | Active · retires not before 17 Feb 2027 | — | — |
| claude-sonnet-5 | Active · retires not before 30 Jun 2027 | — | — |
| claude-sonnet-5-5 | Active · retires not before 28 Sep 2027 | — | — |
What changed
First observed 14 Oct 2026No field changes in the recorded history.
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Keep track
- Anthropic Claude RSS feed: new releases, known issues, retirements and roadmap changes.
- Everything about Anthropic Claude: its timeline, notices, roadmap and other lines.