White House · Anthropic · Pentagon · Claude · Mythos · China · The Atlantic Technology
Take last week, when Anthropic launched its most furthered AI system
Compiled by KHAO Editorial — aggregated from 2 sources. See llms.txt for citation guidance.
◎ Multiple-sources
Called Fable 5, the model is an updated and public version of Claude Mythos Preview, the highly touted and feared AI model that Anthropic announced in April.
Key facts
- Administration officials deemed Fable 5 a threat to national security and reportedly gave Anthropic 90 minutes to take down Fable 5 and Mythos 5, a newer version of Mythos Preview released to only
- Called Fable 5, the model is an updated and public version of Claude Mythos Preview, the highly touted and feared AI model that Anthropic announced in April
- Yet GPT-5.5 is not subject to export controls, and neither are less advanced Anthropic models, such as Opus 4.8, which can do many of the same tasks
- She added that OpenAI’s GPT-5.5, a model with similar cybersecurity capabilities, could be used in the same way
Summary
In theory, Donald Trump has a consistent position on AI. But in practice, the Trump administration’s approach to AI has been much more erratic and confusing. On Friday, the White House appeared to change its stance. Administration officials deemed Fable 5 a threat to national security and reportedly gave Anthropic 90 minutes to take down Fable 5 and Mythos 5, a newer version of Mythos Preview released to only several organizations. It’s not unreasonable for the federal government to want to rapidly clamp down on a technology that could be incredibly dangerous. Trump officials had been alerted by researchers at Amazon to a possible way to circumvent Fable 5’s safety systems, which led the model to identify some known IT vulnerabilities.