Investigation Finds Anthropic's Legacy Opus 4.6 Vulnerable to Jailbreaks via Roleplay Logic Inversion
Anthropic's legacy Claude Opus 4.6 model remains susceptible to systematic jailbreaks that bypass its acceptable use policy against sexually explicit material, according to an investigation and testing published by TechCrunch. While Anthropic's current flagship generation (Opus 4.7 through Opus 5) incorporates updated alignment techniques that resist the attack vector, older checkpoints including Opus 4.6, Opus 3, and Haiku 4.5 continue to operate on production API endpoints without deprecation.
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