@AnthropicAI: Since June 12, we’ve been working closely with the US government to restore access to Claude Mythos 5 and Fable 5. Toda…
Summary
Anthropic has been working with the US government to restore access to its cybersecurity model Claude Mythos 5 and general model Fable 5, and is now redeploying Mythos 5 to critical infrastructure organizations while continuing to seek wider access.
View Cached Full Text
Cached at: 06/27/26, 03:49 AM
Since June 12, we’ve been working closely with the US government to restore access to Claude Mythos 5 and Fable 5. Today, the government notified us that Mythos 5, our strongest cybersecurity model, can be redeployed to a set of US organizations that operate and defend critical infrastructure.
We’re restoring access for these organizations quickly, and we’re continuing to work with the government to expand access to Mythos 5 and make Fable 5 available for general use again.
Similar Articles
Anthropic’s Mythos 5 is back
After two weeks of negotiations with the Trump administration, Anthropic's Mythos 5 cybersecurity model has been partially restored for a select group of approved organizations, while the public-facing Fable 5 remains restricted under an export control directive.
Anthropic’s Claude Fable 5 is a version of Mythos the public can access today
Anthropic launched Claude Fable 5, a publicly accessible version of its powerful Mythos model, with safety guardrails that block responses in high-risk areas and fall back to a weaker model. The release follows Anthropic's warning about AI becoming too dangerous and its push for coordinated safety measures.
Inside the fight over Claude Mythos 5
The Trump administration issued an export control directive to Anthropic, demanding suspension of access to its Mythos 5 and Fable 5 AI models over security concerns, leading to emergency negotiations that could reshape the AI industry.
Anthropic Says It’s Taking Claude Fable 5 Offline to Comply With US Government Order
Anthropic disables its Claude Fable 5 and Mythos 5 AI models after receiving a US government export control directive citing national security concerns, escalating tensions between the company and the Trump administration.
US government directive to suspend access to Fable 5 and Mythos 5
The US government has issued an export control directive to suspend access to Anthropic's Fable 5 and Mythos 5 models due to national security concerns, citing a potential jailbreak method. Anthropic is complying by disabling access for all customers, but disputes the severity of the vulnerability.