Anthropic Disputes Claude Fable 5 Jailbreak Claims After Pliny Posts Alleged Bypass

Anthropic is disputing claims that its new Claude Fable 5 model was jailbroken shortly after launch to generate harmful cybersecurity and chemistry-related content. The claims came after Anthropic launched Claude Fable 5 and Claude Mythos 5 on June 9, 2026. Fable 5 is the public Mythos-class model, while Mythos 5 is a more restricted version […] The post Anthropic Disputes Claude Fable 5 Jailbreak Claims After Pliny Posts Alleged Bypass appeared first on VPN Central.