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The Trump administration has lifted its ban on Anthropic's powerful Mythos 5 AI, allowing over 100 U.S. government agencies and companies, including non-American staff, to use it. This decision, two weeks after both Mythos 5 and Fable 5 were pulled, comes with "appropriate safeguards," though Fable 5 remains restricted.

Anthropic's advanced AI model, Mythos 5, is partially reinstated for select cybersecurity and infrastructure providers after two weeks of negotiations with the Trump administration. The public-facing Fable 5 remains restricted. This limited return is an exception to an export control directive, similar to a deal granted to OpenAI's GPT-5.6, highlighting evolving US AI regulation.

The Trump administration has ordered Anthropic to take its advanced AI models, Fable 5 and Mythos 5, offline due to unspecified “national security concerns.” This move follows reports of Amazon researchers bypassing Fable 5's guardrails. While cybersecurity experts deem the ban dangerous, some speculate it could inadvertently boost Anthropic's image, positioning its models as uniquely powerful.

Nearly 100 prominent cybersecurity experts have signed an open letter condemning the US government's ban on Anthropic's Fable 5 and Mythos 5 AI models. They argue the move disarms defenders, creates market uncertainty, and risks America's AI leadership without justifiable cause, potentially benefiting adversaries more than protecting national security.

Anthropic's recent decision to suspend access to its newest AI models, Fable 5 and Mythos 5, for all foreign nationals following a U.S. government directive has sent ripples across the global technology industry. In

Anthropic's Fable 5 and Mythos 5 AI models were abruptly shut down by a US Commerce Department directive over national security concerns regarding a potential 'jailbreak.' Anthropic disputes the severity, warning of industry-wide impacts.