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Anthropic Restores Mythos 5 Access for Select U.S. Infrastructure Groups but Keeps Fable 5 Restricted
Anthropic said Friday that the U.S. government approved limited redeployment of its Mythos 5 model to organizations that operate and defend critical infrastructure. Fable 5 access remains restricted.
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Anthropic restored access to its Mythos 5 model for a set of U.S. organizations that operate and defend critical infrastructure on Friday. The company said the U.S. government notified it that the model could be redeployed to those groups after an export-control order earlier this month had barred access by foreign nationals, including foreign national employees inside the firm.
Anthropic, based in San Francisco, disabled access to both Mythos 5 and Fable 5 after the order took effect. The company has worked with the government since June 12 to restore availability. Access to Mythos 5 is being restored quickly for the approved organizations, while the status of Fable 5 remained unchanged as of Friday.
"Since June 12, we've been working closely with the US government to restore access to Claude Mythos 5 and Fable 5. " OpenAI said on Friday that the U.S.
Government requested it limit preview access for its latest series of models, called GPT-5.6, to a small group of trusted partners. The company stated that government-imposed limits on model access should not become the long-term default because it keeps the best tools from users, developers, enterprises, cyber defenders, and global partners who need them.
