according to wall street journalThe export control directive that caused Anthropic to shut down access to Fable 5 and Mythos 5 was triggered in part by Amazon’s cybersecurity research and negotiations between CEO Andy Jassy and the White House. According to the report, Amazon’s paper claims that, through a series of signals, it was able to provide the Fable 5 with information that could be used in cyberattacks. Amazon has not yet responded to a request for comment.
JC immediately called for a halt to its use by foreign nationals, after the company shared its findings with the government. Complicating the issue is that many of Anthropic’s researchers are foreign-born, meaning they were blocked from accessing their own product.
In a statement, Anthropic disputed the government’s description of the issue as a “jailbreak”. It argued that similar vulnerabilities could be discovered using other publicly available models, including GPT 5.5. Some security researchers appear to support the company’s explanation. Katie Moussouris, founder and CEO of LutaSecurity, posted on BlueSky that “I’ve seen the paper. This is not a jailbreak.” Former Commerce Department official Kate Koren estimated this WSJ The White House’s dislike of Anthropic may have influenced the decision.
Anthropic and the Trump administration have been at loggerheads for some time over the company’s refusal to allow its AI to be used for mass surveillance of Americans or to pilot lethal autonomous weapons. In February, Trump directed federal agencies to stop using Anthropic’s AI. And just hours later, Defense Secretary Pete Hegseth designated the company a supply chain risk.
It seems that the government and the company have made amends and both have worked together to expand access to Mythos. However, now another clash between the two seems certain.
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