Anthropic Shuts Down AI Models After US Export Controls

Anthropic has shut down access to its Mythos and Fable 5 models after receiving a US Commerce Department directive restricting their use internationally. The company said it must disable the models immediately due to government export controls, despite concerns about potential security breaches and a request for a pause in releases. Reports suggest that these models were potentially vulnerable to jailbreaks, prompting national security officials to seek time for hardening against such threats.