American Government Takes Down Claude Fable

Abstraction: Commerce export controls abruptly shut down Fable

Key points:

• US Dept of Commerce (via Secretary Howard Lutnick), reacting to a narrow jailbreak flagged by Amazon, classified Fable 5 and Mythos 5 under export controls barring all foreign nationals — even Anthropic's own non-US employees (e.g. Amanda Askell, Andrej Karpathy).
• Anthropic received the directive at 5:21pm ET Friday; unable to verify citizenship, it had to fully disable Fable/Mythos while Opus 4.8 and other models stayed available.
• Anthropic argues the jailbreak revealed only minor, previously-known vulnerabilities that GPT-5.5 can also find; it defends its "defense in depth" strategy (safeguards + 30-day data retention + monitoring) since perfect jailbreak resistance is impossible.
• David Sacks offered the administration's steelman: a trusted partner found a jailbreak, Dario refused to fix/de-deploy, so the export control followed; fix the specific issue and it lifts.
• Zvi frames the implementation as absurdly stupid and either malicious or reflecting deep misunderstanding of how jailbreaks work, especially while chip export controls to China are being relaxed; warns of driving out foreign AI talent and creeping nationalization.

Connections: Zvi Mowshowitz · Anthropic · Claude · David Sacks · Export Controls · Jailbreaks · AI Policy

Source: https://thezvi.substack.com/p/american-government-takes-down-claude