U.S. security order forces Anthropic to halt its most powerful AI models worldwideExecutive summary: Anthropic suspended access to its most powerful AI models, Fable 5 and Mythos 5, for all users following a U.S. government directive that required blocking access for foreign citizens. The move demonstrates how U.S. national‑security policy can restrict global access to cutting‑edge AI, affecting companies, investors, and international markets. Anthropic; the U.S. administration (Trump); foreign users; regulators. Further regulatory scrutiny of AI exports is expected, possible legal challenges by Anthropic, and potential policy responses from Europe to protect domestic AI capabilities.Anthropic suspended access to its flagship AI models after a U.S. government directive required blocking foreign users; the company opted to disable the systems globally rather than verify the order's execution. The episode underscores how national security concerns can shape the global availability of frontier AI technologies. It also raises questions about future regulatory approaches to AI development and distribution.Connected developmentsRestrizioni USA sui modelli AI avanzatiPrecedenti restrizioni US su AIKünstliche Intelligenz: Anthropic sperrt Top-KI-Modell für Ausländer – Europa betroffenAnthropic suspende el acceso a sus modelos más avanzados de inteligencia artificial por el veto de EE UU a los extranjerosAnthropic suspende el acceso público a su modelo más avanzado por orden del Gobierno de EEUUAnthropic suspend son IA la plus puissante, en raison de restrictions de «sécurité nationale»Open the full case file on Beyond →
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