Anthropic Releases Its Most Powerful Public Model Days After Urging Labs to Build a Frontier-AI 'Brake Pedal'

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TechCrunch highlights the timing tension: Anthropic shipped Fable 5 — its most capable publicly available model — just days after publicly urging major global AI labs to establish a coordinated mechanism to pause frontier development, warning systems may soon achieve recursive self-improvement without human intervention. Anthropic says an external bug bounty logged over 1,000 hours of testing with no universal jailbreaks found, and external red-teaming organizations also failed to find any. The juxtaposition of a 'too dangerous' warning followed by the most powerful public release is drawing scrutiny over whether safety messaging and shipping cadence are aligned.