claude-mythos-preview — Deprecated — shutdown To be announced
For claude-mythos-preview, provider is Anthropic; lifecycle status is Deprecated; deprecation announced is June 9, 2026; shutdown / retirement date is To be announced; 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-mythos-preview verified
- Lifecycle status
- Deprecated verified
- Deprecation announced
- June 9, 2026 verified
- Shutdown / retirement date
- To be announced verified
- Platform / deployment scope
- Anthropic API / Claude Platform on AWS / Microsoft Foundry our reading
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
| claude-mythos-preview | Deprecated | June 9, 2026 | To be announced |
— platform.claude.com, retrieved 2026-09-21
Where each value comes from
The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.
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
- platform.claude.comhttps://platform.claude.com/docs/en/about-claude/model-deprecations.md
- platform.claude.comhttps://platform.claude.com/docs/en/about-claude/model-deprecations