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Claude Mythos deprecation & shutdown dates
2 Claude Mythos versions tracked across 2 providers. Next shutdown: claude-mythos-preview (gated research preview) (—) on Azure OpenAI, Apr 2, 2027.
Last checked 2026-10-18 on the official deprecation pages.
Every Claude Mythos version on every provider we track, with the date and replacement each official deprecation page gives.
| Model ID | Provider | Status | Shutdown | Replacement |
|---|---|---|---|---|
claude-mythos-preview (gated research preview) (—) | Azure OpenAI | scheduled | Apr 2, 2027 | None listed by provider |
claude-mythos-preview | Anthropic | Deprecated | — | None listed by provider |
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Frequently asked questions
When is Claude Mythos being deprecated?
2 Claude Mythos versions tracked across 2 providers. Next shutdown: claude-mythos-preview (gated research preview) (—) on Azure OpenAI, Apr 2, 2027.
What replaces Claude Mythos?
No replacement is named on the official pages.
When does claude-mythos-preview (gated research preview) (—) on Azure OpenAI shut down?
claude-mythos-preview (gated research preview) (—) on Azure OpenAI shuts down on Apr 2, 2027. The provider lists no replacement.
When does claude-mythos-preview on Anthropic shut down?
Anthropic lists claude-mythos-preview as Deprecated with no shutdown date published. The provider lists no replacement.