Anthropic's Fable 5 model pulled after three days—White House intervention, export controls, and questions about AI power and regulation in this week's brief.

Anthropic limits AI model use, citing safety concerns. But it's also trying to stop open-source models from competing.

Coming just three days after its launch, the sudden block of Anthropic's Fable model has become a larger fight over who decides when an AI system is too powerful for open access.