US Government Warned Anthropic of Chinese Fable 5 Jailbreak Access; Anthropic Declined Fix
The US government informed Anthropic that a Chinese entity had accessed a jailbreak for Fable 5 (Anthropic's latest model) before export control deadlines, but Anthropic declined to patch the vulnerability, claiming the jailbreak was not serious enough to warrant remediation. Trump adviser David Sacks disclosed the incident, raising questions about Anthropic's security posture under compliance pressure.
The incident highlights friction between US export control mandates and AI safety assessment. Anthropic's decision to defer the patch reflects internal triage decisions where model completeness and deployment speed may have outweighed external threat signals—a tension likely to resurface as regulators intensify model audit requirements.