# claude-3-5-sonnet-20241022 — AI model deprecation and retirement dates by provider

For claude-3-5-sonnet-20241022, provider is Anthropic; human-readable model name is Claude 3.5 Sonnet; lifecycle status is Retired; deprecation announced is August 13, 2025; shutdown / retirement date is October 28, 2025, recorded from its source on 2026-08-12.

- **Provider:** Anthropic _(verified: appears in the quote below)_
- **Model ID / API name:** claude-3-5-sonnet-20241022 _(verified: appears in the quote below)_
- **Human-readable model name:** Claude 3.5 Sonnet
- **Lifecycle status:** Retired _(verified: appears in the quote below)_
- **Deprecation announced:** August 13, 2025 _(verified: appears in the quote below)_
- **Shutdown / retirement date:** October 28, 2025 _(verified: appears in the quote below)_
- **Recommended replacement:** claude-sonnet-4-6 _(verified: appears in the quote below)_
- **Platform / deployment scope:** Anthropic API / Claude Platform on AWS / Microsoft Foundry _(our reading, not quoted from the source)_

## What the source says

> On August 13, 2025, Anthropic notified developers using Claude Sonnet 3.5 models of their upcoming retirement. Retirement date | Deprecated model | Recommended replacement | October 28, 2025 | claude-3-5-sonnet-20240620 | claude-sonnet-4-6 | October 28, 2025 | claude-3-5-sonnet-20241022 | claude-sonnet-4-6 |  2025-06-30: Claude Opus 3 model  This model was retired January 5, 2026. On June 30, 2025, Anthropic notified developers using Claude Opus 3 model of its upcoming retirement.

## Source

- https://docs.anthropic.com/en/docs/about-claude/model-deprecations

Last verified: 2026-08-12. Review by: 2026-09-11.
Part of [AI model deprecation and retirement dates by provider](https://referencesource.org/ai-model-deprecation-and-retirement/).