# Anthropic Claude Mythos 5 — deprecation status

> No — Claude Mythos 5 is not deprecated as of August 3, 2026. Anthropic has announced neither a deprecation nor a shutdown date for it.

The same underlying model as Claude Fable 5 with the cybersecurity and biology safeguards lifted, offered only to approved Project Glasswing customers. It shares Fable 5's specs and pricing and its own 1M context window, but it is the one current Claude id you cannot reach by signing up - access runs through an Anthropic, AWS or Google Cloud account team.

## Facts

| Field | Value |
| --- | --- |
| Provider | Anthropic |
| Model id | `claude-mythos-5` |
| Status | Active |
| Released | June 9, 2026 |
| Last verified | August 3, 2026 |

## FAQ

### Is Anthropic Claude Mythos 5 still available?

Yes. Anthropic Claude Mythos 5 is active and fully supported as of August 3, 2026.

## Sources

- [Anthropic models overview](https://platform.claude.com/docs/en/about-claude/models/overview) — accessed 2026-08-03

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Canonical page: https://modeldeprecations.dev/anthropic/claude-mythos-5
JSON: https://modeldeprecations.dev/api/v1/models/anthropic/claude-mythos-5.json