Anthropic Claude model deprecations and retirement dates
2 upcoming Anthropic model shutdowns, from the official deprecations page, with days left and the recommended replacement.
Upcoming shutdowns
| Shutdown | Days left | Model | Provider | Replacement |
|---|---|---|---|---|
| 26 days left | Claude Sonnet 4.5claude-sonnet-4-5-20250929 | Anthropic | claude-sonnet-5-5 | |
| TBA | date TBA | Claude Mythos Previewclaude-mythos-preview | Anthropic | — |
Sources: Anthropic deprecations. Data last changed 2026-11-02; the sources are re-checked daily and every date change is reviewed before it's published.
Retired since January 2026
| Shutdown | Days left | Model | Provider | Replacement |
|---|---|---|---|---|
| retired | Claude Opus 4.1claude-opus-4-1-20250805 | Anthropic | claude-opus-4-8 | |
| retired | Claude Opus 4claude-opus-4-20250514 | Anthropic | claude-opus-4-8 | |
| retired | Claude Sonnet 4claude-sonnet-4-20250514 | Anthropic | claude-sonnet-5-5 | |
| retired | Claude 3 Haikuclaude-3-haiku-20240307 | Anthropic | claude-haiku-4-5-20251001 | |
| retired | Claude 3.5 Haikuclaude-3-5-haiku-20241022 | Anthropic | claude-haiku-4-5-20251001 | |
| retired | Claude 3.7 Sonnetclaude-3-7-sonnet-20250219 | Anthropic | claude-sonnet-5-5 | |
| retired | Claude 3 Opusclaude-3-opus-20240229 | Anthropic | claude-opus-4-8 |
Active models and their minimum lifetime
Anthropic lists a "not sooner than" date for each active model. It's the earliest date Anthropic could retire the model, so these models aren't on the calendar.
| Model ID | Not retired before |
|---|---|
claude-haiku-4-5-20251001 | Oct 15, 2026 |
claude-opus-4-5-20251101 | Nov 24, 2026 |
claude-opus-4-6 | Feb 5, 2027 |
claude-sonnet-4-6 | Feb 17, 2027 |
claude-opus-4-7 | Apr 16, 2027 |
claude-opus-4-8 | May 28, 2027 |
claude-fable-5 | Jun 9, 2027 |
claude-mythos-5 | Jun 9, 2027 |
claude-sonnet-5 | Jun 30, 2027 |
claude-opus-5 | Jul 24, 2027 |
claude-fable-5-1 | Sep 1, 2027 |
claude-mythos-5-1 | Sep 1, 2027 |
claude-opus-5-5 | Sep 22, 2027 |
claude-sonnet-5-5 | Sep 28, 2027 |
claude-haiku-5-5 | Oct 7, 2027 |
Notes on Anthropic dates
Dates apply to the Claude API and other Anthropic-operated platforms. Amazon Bedrock and Claude Models on Google Cloud (Google managed) set their own retirement schedules, so check those model tables separately.