Anthropic has made Mythos, a version of its Claude Fable 5 model with cybersecurity safeguards removed, available only to vetted organisations. Such controls reflect concern that AI systems capable of finding and exploiting software flaws can assist defenders but may also lower barriers for attackers.

BEIJING: Chinese AI startup Z.ai said on Friday (Aug 14) its open-source GLM-5.3 model had neared Anthropic's restricted Mythos 5 in identifying software vulnerabilities,…

Qihoo 360 and Zhipu AI unveiled cybersecurity AI tools at ISC.AI 2026, claiming performance approaching Anthropic's Mythos 5 in vulnerability