# claude-mythos-preview — AI model deprecation and retirement dates by provider

For claude-mythos-preview, provider is Microsoft Azure / Foundry; human-readable model name is claude-mythos-preview (gated research preview); lifecycle status is Preview; shutdown / retirement date is 2027-04-02; platform / deployment scope is Azure / Microsoft Foundry, recorded from its source on 2026-08-12.

- **Provider:** Microsoft Azure / Foundry
- **Model ID / API name:** claude-mythos-preview _(verified: appears in the quote below)_
- **Human-readable model name:** claude-mythos-preview (gated research preview) _(verified: appears in the quote below)_
- **Lifecycle status:** Preview _(verified: appears in the quote below)_
- **Shutdown / retirement date:** 2027-04-02 _(verified: appears in the quote below)_
- **Platform / deployment scope:** Azure / Microsoft Foundry _(our reading, not quoted from the source)_

## What the source says

> claude-mythos-preview (gated research preview) | — | Preview | 2027-04-02 |

## Source

- https://learn.microsoft.com/en-us/azure/foundry/openai/concepts/model-retirement-schedule

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/).