{"id":2085,"date":"2026-06-13T22:26:15","date_gmt":"2026-06-13T22:26:15","guid":{"rendered":"https:\/\/silvybrand.com\/?p=2085"},"modified":"2026-06-13T22:26:15","modified_gmt":"2026-06-13T22:26:15","slug":"anthropic-fable-5-mythos-5-government-national-security","status":"publish","type":"post","link":"https:\/\/silvybrand.com\/?p=2085","title":{"rendered":"Anthropic cuts off Fable 5 and Mythos 5 access following government order"},"content":{"rendered":"


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On Friday evening, the government ordered Anthropic to block access to Fable 5 <\/a>and Mythos 5 for all foreign nations, both inside and outside the US, due to national security concerns. That order included employees of Anthropic. To meet those demands, the company has completely cut off access to the models for all customers.<\/p>\n<\/div>\n

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In a statement<\/a>, Anthropic said that while it was complying with the order, the government \u201cdid not provide specific details of its national security concern.\u201d Instead, it claims that any evidence of potential jailbreak was provided verbally, and that the vulnerabilities discovered were minor and available via other models, including GPT 5.5.<\/p>\n<\/div>\n

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In its statement, the company lays out the steps it took to safeguard Fable and Mythos, including working with the US and UK governments and changing its data retention policy<\/a> to help track attempts to use them for malicious purposes. It goes on to say that:<\/p>\n<\/div>\n

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We have not even received a disclosure of a concerning non-universal potential jailbreak that led to a harmful result. The potential jailbreaks that have been disclosed to us are either entirely benign responses or are minor findings that provide no Mythos-specific uplift.<\/p>\n<\/blockquote>\n<\/div>\n


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Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

On Friday evening, the government ordered Anthropic to block access to Fable 5 and Mythos 5 for all foreign nations, both inside and outside the US, due to national security concerns. That order included employees of Anthropic. To meet those demands, the company has completely cut off access to the models for all customers. In […]<\/p>\n","protected":false},"author":1,"featured_media":2086,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[31,175,46,74,75],"class_list":["post-2085","post","type-post","status-publish","format-standard","has-post-thumbnail","category-gadgets","tag-ai","tag-anthropic","tag-news","tag-policy","tag-politics"],"yoast_head":"\nAnthropic cuts off Fable 5 and Mythos 5 access following government order - Silvybrand Lifestyle Blog<\/title>\n<meta name=\"description\" content=\"The US government issued an export control directive citing national security concerns requiring Anthropic to block access to Fable 5 and Mythos 5 for foreign nationals.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/silvybrand.com\/?p=2085\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Anthropic cuts off Fable 5 and Mythos 5 access following government order - 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