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Claude Fable 5 government ban controversy
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The US government forced Anthropic to pull Claude Fable 5 and Mythos 5 three days after release, citing national security concerns following Amazon researchers' discovery of a jailbreak that bypassed Fable 5's guardrails. Anthropic and cybersecurity researchers disputed the ban, noting similar vulnerabilities exist in competing models.
- US government ban issued June 19, 2026, just three days after Fable 5 release
- Amazon researchers found jailbreak bypassing Fable 5's safety guardrails, triggering national security review
- Anthropic stated identical jailbreaks exist in other AI models, questioning selective enforcement
- Cybersecurity researchers signed open letter opposing the ban as dangerous precedent
- Anthropic researcher Amanda Askell working on agentic AI safety and human value alignment