Malwarebytes Follow Claude Fable 5 and Mythos 5 “abruptly disabled” after US gov. ban Anthropic has been ordered by the US government to cut off its newest Claude Fable 5 and Mythos 5 models for fear of abuse. https://www.malwarebytes.com/blog/ai/2026/06/claude-fable-5-and-mythos-5-abruptly-disabled-after-us-gov-deems-them-too-clever malwarebytes.com