US Directive Targets Access to Fable 5 and Mythos 5
Original: Statement on the US government directive to suspend access to Fable 5 and Mythos 5
Simon Willison highlights Anthropic’s claim that a US directive could force suspension of Fable 5 and Mythos 5 access.
Simon Willison comments on Anthropic’s statement that a US government export-control directive requires suspending access to Fable 5 and Mythos 5 for all foreign nationals, including Anthropic employees. Anthropic says the directive cites national security concerns but offers only verbal evidence of a narrow Fable 5 jailbreak. Willison notes that, as of 9:01pm ET, he still had access to Fable through claude.ai and Claude Code.
Simon Willison’s post is a short commentary pointing readers to an Anthropic statement about a US government directive affecting access to two Anthropic models, Fable 5 and Mythos 5. The post quotes Anthropic’s statement at length and frames the situation as surprising and extreme. According to the quoted statement, the US government, citing national security authorities, issued an export-control directive requiring Anthropic to suspend access to Fable 5 and Mythos 5 for any foreign national, whether that person is located inside or outside the United States. Anthropic says this category would include foreign-national employees of Anthropic itself.
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