---
id: "entity-mythos"
type: "entity"
entityType: "product"
canonicalName: "Mythos"
aliases: ["Claude Mythos"]
source_timestamps: ["00:00:00"]
tags: ["unreleased-model", "security"]
related: ["entity-anthropic"]
sources: ["s12-opus-47"]
sourceVaultSlug: "s12-opus-47"
originDay: 12
---
# Mythos

## Profile

An **unreleased, highly capable model** developed by [[entity-anthropic-d12|Anthropic]].

## Restrictions

Currently restricted to:
- Government partners.
- Select enterprise partners.

## Reason for Restriction

Security concerns — Mythos has reportedly **found thousands of zero-day vulnerabilities** at scale.

## Strategic Implication

Mythos signals Anthropic's frontier capability lead is even greater than [[entity-claude-opus-4-7-d12|Opus 4.7]] reveals — and that Anthropic is selectively gating its strongest capabilities behind security partnerships rather than releasing them broadly.

## External Validation

Per the enrichment overlay: **CodeAnt reports Claude Mythos Preview leads SWE-bench Verified at 93.9%**, Python-focused, with security scanning gaps. The speculative product page is https://www.anthropic.com/mythos. The 'thousands of zero-days' claim is the speaker's framing and not externally corroborated.

This is the entity in the vault with the **strongest external validation**, ironically — Mythos appears to map onto a real Anthropic frontier coder.

## Cross-References

- Maker: [[entity-anthropic-d12]]
- Sibling: [[entity-claude-opus-4-7-d12]]