{"slug": "us-blocks-foreign-access-to-anthropics-newest-ai-models-over-security-risks", "title": "US blocks foreign access to Anthropic’s newest AI models over security risks", "summary": "The US Commerce Department ordered Anthropic to block all foreign nationals, including its own foreign-born employees, from accessing its latest AI models Fable 5 and Mythos 5, citing national security risks. The directive forces Anthropic to disable the models for all customers, marking an escalation in Washington's regulation of frontier AI technologies.", "body_md": "# US blocks foreign access to Anthropic’s newest AI models over security risks\n\nThe commerce department’s mandate forces a shutdown of top-tier systems after officials reportedly found ways to bypass safeguards\n\nWashington has ordered Anthropic – a leading entity in America’s AI sector – to block all foreign nationals from accessing its latest models, Fable 5 and Mythos 5, citing national security concerns, according to the Silicon Valley-based firm.\n\n[released the models](https://www.scmp.com/news/world/united-states-canada/article/3356555/anthropic-opens-powerful-mythos-ai-model-public-some-safeguards?module=inline&pgtype=article), underscoring Washington’s increasingly hands-on approach to regulating frontier artificial intelligence technologies.\n\nAccording to Anthropic’s statement, issued on Friday night, the directive arrived at 5.21pm Eastern time and extends even to Anthropic’s own foreign-born employees.\n\n“The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance. Access to all other Anthropic models will not be affected,” the company said.\n\nAnthropic released Fable 5 and Mythos 5 on Tuesday, marketing them as its most powerful models to date. Both systems have similar underlying technical foundations, but only Fable 5 was released to the public with additional safety and security restrictions, while Mythos 5 was released only to trusted partners.\n\nAnthropic previously warned that Fable 5 “could be misused to cause serious damage” without the safeguards it introduced, including restrictions on discussing sensitive cybersecurity, biology and chemistry topics.\n\n[the Mythos model](https://www.scmp.com/news/world/united-states-canada/article/3356555/anthropic-opens-powerful-mythos-ai-model-public-some-safeguards?module=inline&pgtype=article)to a small group of industry partners under an initiative called Project Glasswing, touting unprecedented cybersecurity capabilities.", "url": "https://wpnews.pro/news/us-blocks-foreign-access-to-anthropics-newest-ai-models-over-security-risks", "canonical_source": "https://www.scmp.com/tech/article/3356990/us-blocks-foreign-access-anthropics-newest-ai-models-over-security-risks?utm_source=rss_feed", "published_at": "2026-06-13 05:06:27+00:00", "updated_at": "2026-06-13 05:28:00.001118+00:00", "lang": "en", "topics": ["artificial-intelligence", "ai-safety", "ai-policy", "large-language-models", "generative-ai"], "entities": ["Anthropic", "US Commerce Department", "Fable 5", "Mythos 5", "Project Glasswing"], "alternates": {"html": "https://wpnews.pro/news/us-blocks-foreign-access-to-anthropics-newest-ai-models-over-security-risks", "markdown": "https://wpnews.pro/news/us-blocks-foreign-access-to-anthropics-newest-ai-models-over-security-risks.md", "text": "https://wpnews.pro/news/us-blocks-foreign-access-to-anthropics-newest-ai-models-over-security-risks.txt", "jsonld": "https://wpnews.pro/news/us-blocks-foreign-access-to-anthropics-newest-ai-models-over-security-risks.jsonld"}}