# claude-sonnet-4-5-20250929

> claude-sonnet-4-5-20250929 (Anthropic): deprecated, shutdown 2026-11-30. Lifecycle notices from Anthropic, each with its source.

Canonical: https://rewindex.com/models/claude-sonnet-4-5-20250929
Last updated: 2026-10-16T04:00:00Z

- Maker: [Anthropic](https://rewindex.com/company/anthropic.md)
- Status: Deprecated · next shutdown 2026-11-30

Built only from deprecation and shutdown notices collected by Dead Canary. A model is listed at a host when that host’s own notice names it. Retired = a shutdown date that has passed; Deprecated = any other deprecation or shutdown notice. Preview/GA status is not shown because these sources do not state it.

## Hosts

| Host | Status at host | Date | Notices |
| --- | --- | --- | --- |
| [Anthropic](https://rewindex.com/company/anthropic.md) | Deprecated | 2026-11-30 | 1 |

## Lifecycle timeline

| Date | Host | Type | Notice | Source | Dead Canary |
| --- | --- | --- | --- | --- | --- |
| 2026-11-30 | Anthropic | deprecation | claude-sonnet-4-5-20250929 retirement | [vendor notice](https://docs.anthropic.com/en/docs/resources/model-deprecations) | [event](https://deadcanary.io/event/anthropic-claude-sonnet-4-5-20250929-retirement-5ad6/) |


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Canonical: https://rewindex.com/models/claude-sonnet-4-5-20250929 · Markdown: https://rewindex.com/models/claude-sonnet-4-5-20250929.md · JSON: https://rewindex.com/api/v1/models/claude-sonnet-4-5-20250929 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T10:21:15.972Z