# Anthropic deprecations & changes

2 item(s): 1 upcoming, 0 without an announced date, 1 past. Data via [Dead Canary](https://deadcanary.io/vendor/anthropic/). Company profile: [Anthropic](https://rewindex.com/company/anthropic.md)

- Deprecation: 1
- Shutdown: 1

## Upcoming

| Effective | Type | Change | Details | Source | Via |
| --- | --- | --- | --- | --- | --- |
| 2026-11-30 | Deprecation | claude-sonnet-4-5-20250929 retirement | claude-sonnet-4-5-20250929 Deprecated September 30, 2026 November 30, 2026 | [source](https://docs.anthropic.com/en/docs/resources/model-deprecations) | [Dead Canary](https://deadcanary.io/event/anthropic-claude-sonnet-4-5-20250929-retirement-5ad6/) |

## Past

| Effective | Type | Change | Details | Source | Via |
| --- | --- | --- | --- | --- | --- |
| 2026-08-05 | Shutdown | claude-opus-4-1-20250805 retired | claude-opus-4-1-20250805 Retired June 5, 2026 August 5, 2026 | [source](https://docs.anthropic.com/en/docs/resources/model-deprecations) | [Dead Canary](https://deadcanary.io/event/anthropic-claude-opus-4-1-20250805-retired-d09c/) |


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Canonical: https://rewindex.com/company/anthropic/deprecations · Markdown: https://rewindex.com/company/anthropic/deprecations.md · JSON: https://rewindex.com/api/v1/companies/anthropic/deprecations · Generated 2026-10-18T07:43:48.832Z