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Truong (Jack) Luu

Information Systems Researcher

Anthropic’s Mythos mess is only getting worse | AI Sec Watch

Anthropic’s Mythos mess is only getting worse

infonewsLLM-Specific

policy

Source: The Verge (AI)June 26, 2026

Summary

Anthropic removed its Mythos-class models (its most advanced AI systems) from service after receiving an order from the Trump administration on a Friday evening. Two weeks later, the company has provided no updates on negotiations or timeline for when these models might return online, leaving the situation unresolved.

Classification

Attack SophisticationTrivial

Impact (CIA+S)

availability

AI Component TargetedModel

Affected Vendors

Anthropic

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Monthly digest — independent AI security research

Original source: https://www.theverge.com/ai-artificial-intelligence/957327/anthropic-mythos-fable-ai-trump-administration-negotiations

First tracked: June 26, 2026 at 02:00 PM

Classified by LLM (prompt v3) · confidence: 85%

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