All News & Analysis

Independent coverage and commentary on Anthropic's Claude Mythos Preview model.

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Cybersecurity

Unauthorized Access to Mythos Preview: What We Know So Far

Reports indicate unauthorized users accessed Claude Mythos Preview through a third-party contractor. Anthropic confirms investigation is underway.

Apr 22, 20265 min read
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Policy

NSA Uses Mythos Preview as Pentagon Labels Anthropic a 'Supply-Chain Risk'

The U.S. government's contradictory relationship with Claude Mythos Preview exposes deep tensions around AI-powered cybersecurity.

Apr 15, 20267 min read
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Deep Dive

Claude Mythos Preview System Card: What It Reveals About the Model's Capabilities

An in-depth analysis of the Mythos Preview system card — from zero-day discovery at scale to autonomous exploit development.

Apr 10, 202610 min read
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Benchmarks

Claude Mythos Preview Benchmark Breakdown: How It Compares to GPT-5 and Opus 4.6

A detailed breakdown of Claude Mythos Preview's performance across SWE-bench, Cybench, USAMO 2026, and other key benchmarks.

Apr 9, 20268 min read
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Partnerships

Project Glasswing Explained: Anthropic's Controlled AI Security Initiative

A detailed look at Project Glasswing — who the 12 founding partners are, how access works, and what it means for AI-driven cybersecurity.

Apr 8, 20268 min read
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Announcement

Anthropic Announces Claude Mythos Preview — Its Most Powerful AI Model Yet

Anthropic officially unveils Claude Mythos Preview and Project Glasswing, marking a new chapter in AI capability and controlled deployment.

Apr 7, 20267 min read
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Cybersecurity

The Capybara Leak: How Internal Anthropic Documents Exposed Mythos Preview

A CMS misconfiguration in March 2026 exposed 3,000 internal Anthropic documents revealing the existence of Claude Mythos Preview.

Apr 5, 20266 min read