Reference Source

claude-3-5-sonnet-20240620 — Retired — shutdown October 28, 2025

For claude-3-5-sonnet-20240620, provider is Anthropic; lifecycle status is Retired; deprecation announced is August 13, 2025; shutdown / retirement date is October 28, 2025; recommended replacement is claude-sonnet-5-5; platform / deployment scope is Anthropic API / Claude Platform on AWS / Microsoft Foundry, recorded from its source on 2026-09-21; source re-checked 2026-11-11.

Provider
Anthropic our reading
Model ID / API name
claude-3-5-sonnet-20240620 verified
Lifecycle status
Retired
Deprecation announced
August 13, 2025 verified
Shutdown / retirement date
October 28, 2025 verified
Recommended replacement
claude-sonnet-5-5 verified
Platform / deployment scope
Anthropic API / Claude Platform on AWS / Microsoft Foundry our reading
Sourceplatform.claude.com
Verified
Review by
DatasetAI model deprecation and retirement dates by provider

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

| October 28, 2025 | `claude-3-5-sonnet-20240620` | `claude-sonnet-5-5` |

— platform.claude.com, retrieved 2026-09-21

Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

Deprecation announced

On August 13, 2025, Anthropic notified developers using Claude Sonnet 3.5 models of their upcoming retirement.

Platform / deployment scope

The dates on this page apply to Anthropic-operated platforms: the Claude API, Claude Platform on AWS, and Microsoft Foundry. Partner-operated platforms (Amazon Bedrock and Google Cloud) set their own retirement schedules, so a model's lifecycle status and dates can differ.

— all from platform.claude.com, retrieved 2026-09-21

Sources

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.

This one changes, and we watch it.AI model deprecation and retirement dates by provider is re-read on a schedule and every change is dated. Subscribe: Atom feed · JSON · what has changed so far.