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US government suspends Anthropic's Fable 5 and Mythos 5, partially restores Mythos 5

On June 12, the US government suspended access to Anthropic's Fable 5 and Mythos 5 models, citing national security and a jailbreak demonstration. On June 26-27, the government cleared Mythos 5 for redeployment to about 100 US organizations operating critical infrastructure.