Mythos – The TechBriefs

Anthropic says Alibaba must be punished for largest Claude cloning attack

Alibaba allegedly used 25,000 accounts to mine Claude over 28.8 million exchanges. Anthropic has accused the Chinese firm Alibaba of […]

How Anthropic may have talked itself into an AI export ban

Anthropic has billed Mythos as capable of discovering critical cyber security gaps, initially limiting its access on safety grounds to […]

“Dangerous” AI models are coming no matter what

“It’s myopic in the extreme to think that no other competitors to Anthropic will develop similar capabilities to Mythos or […]

Anthropic says these topics are too dangerous to let its Fable 5 model talk about

Anthropic Tuesday publicly released Claude Fable 5, its first “Mythos-class” model that it says surpasses its previous frontier Opus models […]

Mozilla says 271 vulnerabilities found by Mythos have “almost no false positives”

The disbelief was palpable when Mozilla’s CTO last month declared that AI-assisted vulnerability detection meant “zero-days are numbered” and “defenders […]

GPT-5.5 matches heavily hyped Mythos Preview in new cybersecurity tests

Is it just “fear-based marketing”? The new results for GPT-5.5 suggest that, when it comes to cybersecurity risk, Mythos Preview […]

Mythos Changed the Math on Vulnerability Discovery. Most Teams Aren’t Ready for the Remediation Side

Anthropic’s Claude Mythos Preview has dominated security discussions since its April 7 announcement. Early reporting describes a powerful cybersecurity-focused AI […]