Anthropic Suspends Fable 5 and Mythos 5 Access Amid Export Rules
WHO:
Engadget - Anthropic, a prominent AI company, is involved in the suspension of its AI models.
ABC News US - The Trump administration is referenced in relation to the directive affecting Anthropic.
WHAT:
VentureBeat - Anthropic has blocked all public access to its Claude Fable 5 and Mythos 5 models globally, affecting all users, including paying enterprise customers and Anthropic employees.
VentureBeat - Current sessions of Fable 5 and Mythos 5 will end in errors, and new queries will be routed to older models like Opus 4.8.
VentureBeat - Anthropic stated, "We believe this is a misunderstanding and are working to restore access as soon as possible," apologizing to its customers.
VentureBeat - The government order was issued following a viral jailbreak of Fable 5 published on X by "Pliny the Liberator," who claimed to have bypassed the model's safety guardrails.
VentureBeat - The jailbreak involved extracting functional instructions for cyber exploits, explosives, and chemical synthesis pathways, specifically mentioning the "birch reduction method" for methamphetamine.
VentureBeat - Anthropic noted that the information provided by the U.S. government regarding the jailbreak has been poorly documented, stating, "To date, the government has only given us verbal evidence of a potential narrow, non-universal jailbreak."
VentureBeat - Secretary of Defense Pete Hegseth labeled Anthropic a "supply chain risk" after the company refused military use of Claude for mass domestic surveillance and lethal autonomous weapons without safety restrictions.
MarkTechPost - Anthropic has disabled its Claude Fable 5 and Mythos 5 models following a US government export control directive.
MarkTechPost - All other Anthropic models, including Opus 4.8, remain available.
Engadget - Anthropic has suspended all access to its AI models, Fable 5 and Mythos 5.
ABC News US - Anthropic has taken its AI models offline to comply with new export controls.
Cointelegraph - Anthropic has disabled its flagship AI models following a US government directive.
WHY:
Engadget - The suspension is to comply with a government order citing national security concerns.
ABC News US - The directive from the Trump administration aims to prevent the use of these models by foreign nationals.
Cointelegraph - The action is in response to a US government directive related to national security.
(UPDATED June 13, 2026 15:27 UTC)
Anthropic has blocked all public access to its Claude Fable 5 and Mythos 5 models globally, impacting all users, including paying enterprise customers and employees. Current sessions will end in errors, with new queries redirected to older models like Opus 4.8, as the company works to restore access and apologizes for the disruption, which follows a government order linked to a viral jailbreak that exposed serious security vulnerabilities. Secretary of Defense Pete Hegseth has labeled Anthropic a "supply chain risk" after the company declined military use of its technology for mass surveillance and lethal autonomous weapons without proper safety measures.
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(UPDATED June 13, 2026 09:54 UTC)
Anthropic has disabled its Claude Fable 5 and Mythos 5 models in response to a US government export control directive. However, all other Anthropic models, including Opus 4.8, continue to be available for use. This move highlights the ongoing impact of regulatory decisions on technology companies.
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(UPDATED June 13, 2026 06:21 UTC)
Anthropic, a leading AI company, has suspended access to its AI models, Fable 5 and Mythos 5, following a directive from the Trump administration. This decision comes as part of compliance with new export controls aimed at addressing national security concerns and preventing the use of these models by foreign nationals. As a result, Anthropic has taken its flagship AI models offline in response to the government order.