{"id":387,"date":"2026-06-13T20:40:10","date_gmt":"2026-06-13T20:40:10","guid":{"rendered":"https:\/\/longhaulmovingpros.com\/?p=387"},"modified":"2026-06-13T20:40:10","modified_gmt":"2026-06-13T20:40:10","slug":"class-of-ai-models-hyped-as-scarily-powerful-apparently-scared-the-government-too-much-and-now-theyre-disabled","status":"publish","type":"post","link":"https:\/\/longhaulmovingpros.com\/?p=387","title":{"rendered":"Class of AI Models Hyped as Scarily Powerful Apparently Scared the Government Too Much and Now They\u2019re Disabled"},"content":{"rendered":"
\n

According to a statement posted to its website on Friday, Anthropic was forced to \u201cabruptly disable\u201d two of its most prized frontier AI models in response to a highly restrictive U.S. government order. \u201cWe believe this is a misunderstanding and are working to restore access as soon as possible,\u201d the statement says.<\/p>\n

Read more No, You Can\u2019t Stream the UFC Fight at the White House for Free<\/a><\/p>\n

The government action in question is an \u201cexport control directive\u201d saying foreign nationals may not use the models inside or outside of the U.S., and it was motivated by what Anthropic says was an unspecified national security concern.<\/p>\n

But national security concerns, and other security and safety fears, have been at the center of the rollout of these models, which arguably made an event like this foreseeable.<\/p>\n

Rather than releasing its Claude Mythos Preview model to the public, in early April, Anthropic turned the creation of the model into a sort of consciousness-raising campaign about the ostensible dangers of frontier AI models.<\/p>\n

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It explaining why the model wouldn\u2019t be made publicly available, and detailing scary capabilities like deceptiveness and the ability to supposedly break containment from a limited system. It was also purportedly able to be helpful in the development of advanced weapons. For instance, the system card described it as \u201ccapable of significant cross-domain synthesis relevant to catastrophic biological weapons development.\u201d<\/p>\n

\n<\/div>\n

At the same time, the company rolled out Project Glasswing, a program in which a limited group of partners and organizations were allowed to sample the model in order to learn what new horrors it could inflict on the world of cybersecurity. \u201cWe formed Project Glasswing because of capabilities we\u2019ve observed in a new frontier model trained by Anthropic that we believe could reshape cybersecurity,\u201d the Anthropic blog post about Project Glasswing says.<\/p>\n

Soon, despite the inherent nerdiness of the topic, Mythos Preview was a tabloid story. An article in the New York Post cited computer scientist Roman Yampolskiy prophesying that in like of what Mythos heralds, AI may soon develop \u201chacking tools, biological weapons, chemical weapons, [and] novel weapons we can\u2019t even envision.\u201d The phrase \u201cWeapons we can\u2019t even envision\u201d even made it into the headline.<\/p>\n

\n<\/div>\n

British government officials and leaders in the U.K. finance sector scrambled to form an action plan in light of the perceived danger. According to the New York Times, the Trump Administration\u2019s \u201cnoninterventionist policy\u201d toward AI changed after the announcement of Mythos, and its mere existence helped lead to the development of a safety-focused AI executive order. Trump signed one such order about a week ago.<\/p>\n

Nonetheless, last week Anthropic released Claude Fable 5 and Mythos 5. The company described Fable 5 as \u201ca Mythos-class\u00a0model that we\u2019ve made safe for general use,\u201d but with capabilities that \u201cexceed those of any model we\u2019ve ever made generally available.\u201d Mythos 5, meanwhile, got a very limited release as part of Project Glasswing.<\/p>\n

Brian Merchant over at Blood in the Machine described it like this:<\/p>\n

\n

After sparking a major news cycle in the tech media with its April announcement that it had built an AI model, Mythos, so powerful, so\u00a0dangerous\u00a0that it threatened to upend the entire civilizational order\u2014and that it was diligently withholding the product from the public so as to protect us from it\u2014the nation\u2019s now-#1 AI startup decided to put Mythos\u00a0<\/i>up for sale after all.<\/i><\/span><\/p>\n

Read more This Guy Is Trying to Vibe Code GTA 6 Before Its Official Release<\/a><\/p>\n<\/blockquote>\n

Hours after Merchant wrote those words, the export control directive was delivered to Anthropic, and Fable 5 and Mythos 5 were made inaccessible due to apparent national security concerns. It appears Anthropic was only ordered to revoke access for users who are not U.S. nationals, but it\u2019s understandable that Anthropic would find it impractical to let anyone access them anywhere in the world for fear of disobeying the order. Among many issues, non-U.S. nationals work at Anthropic. It\u2019s clearly simpler to just pull the models entirely until the situation is resolved.<\/p>\n

\n<\/div>\n

Interestingly, Anthropic\u2019s statement about the export control directive noted that Anthropic had \u201cworked with the US government,\u201d along with the U.K. government, and \u201cmultiple private third-party organizations\u201d in an effort to create a satisfactory set of safeguards for the models. Upon release, the safeguards were, in many ways, the most prominent feature of the media narrative around Fable 5. One of the tougher guardrails, designed to quietly punish users who abused the model, was even deemed ill-conceived, prompting Anthropic to apologize.<\/p>\n

But in Anthropic\u2019s telling, the government was spooked after learning about a jailbreak for Fable 5 that bypassed those all-important safeguards:<\/p>\n

\n<\/div>\n
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\u201cOur understanding is that the government believes it has become aware of a method of bypassing, or \u2018jailbreaking\u2019 Fable 5. We reviewed a demonstration of this specific technique being used to identify a small number of previously known, minor vulnerabilities. These vulnerabilities all appear relatively simple, and we have found that other publicly-available models are able to discover them as well without requiring a bypass. <\/i><\/p>\n<\/blockquote>\n

Anthtropic points out, quite rightly, that when it released Fable 5, the section in its blog post about the safety of the model made it clear that some jailbreaks were still possible. It\u2019s \u201clikely impossible to\u00a0completely<\/i>\u00a0prevent universal jailbreaks, but our goal is to make any remaining jailbreaks sufficiently slow and costly that we can detect and prevent them before they are used at scale,\u201d Anthropic wrote. Essentially, since making a model perfectly jailbreak-proof is not yet possible, Anthropic sought to make jailbreaks either costly to produce, or too \u201cnarrow\u201d to be a threat. Anthropic is also public about the fact that it retains the data of users of Mythos-class models much more than usual.<\/p>\n

Nonetheless, it\u2019s odd to see Anthropic now downplaying the significance of its models\u2019 perceived dangers, and writing that these vulnerabilities are \u201cminor,\u201d \u201cpreviously known,\u201d and \u201crelatively simple,\u201d as well as pointing out that \u201cother publicly-available models are able to discover them as well without requiring a bypass.\u201d<\/p>\n

Again, when Anthropic first publicized this class of models, it told the world it had created something of unprecedented power with the potential to do real harm to the world. Two months later, a \u201cMythos-class\u201d model was a product for public consumption, available as a premium product for users of the \u201cPro, Max, Team, and seat-based Enterprise plans at no extra cost\u201d but only for a limited time. On June 23, Anthropic\u2019s intent was to \u201cremove Fable 5 from those plans,\u201d and require a pay-as-you-go plan instead.<\/p>\n

\n<\/div>\n

Anthropic claims that government actions like this could, if they became standard, \u201chalt all new model deployments for all frontier model providers.\u201d And perhaps that\u2019s true. For a product release to be halted when the rollout of that product involved a precursor piece of technology that supposedly merited a global reassessment of cybersecurity, an overreaction to holes in that product\u2019s safeguards should probably come as no surprise, even if that overreaction is bad for business.<\/p>\n

Read more SpaceX\u2019s Stratospheric IPO Launch Has a Couple of Heavy-Duty Stowaways<\/a><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Who could have foreseen this?<\/p>\n","protected":false},"author":1,"featured_media":386,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-artificial-intelligence"],"yoast_head":"\nClass of AI Models Hyped as Scarily Powerful Apparently Scared the Government Too Much and Now They\u2019re Disabled - Long Haul Moving Pros<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longhaulmovingpros.com\/?p=387\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Class of AI Models Hyped as Scarily Powerful Apparently Scared the Government Too Much and Now They\u2019re Disabled - 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