The US government switched off Anthropic's most powerful AI for the entire planet — 72 hours after launch

Reddit r/singularity News

Summary

The US government forced Anthropic to disable its powerful AI models Fable 5 and Mythos 5 globally after only 72 hours due to export control concerns, setting a precedent that could drive AI development outside the US.

Anthropic gets an export-control letter and disables Fable 5 + Mythos 5 for every customer on Earth within hours. The "threat" that triggered it? Asking the model to read a codebase and fix bugs — a capability that ships in GPT-5.5 too. So the precedent is now set: a government can reach into a private company and revoke a lawful, days-old product for the whole world, retroactively, no appeal. The industry tried this with chips and demand just walked to China. This is a writeup of why this hands the rest of the planet to non-US models: [https://www.christianfindlay.com/blog/ai-export-ban](https://www.christianfindlay.com/blog/ai-export-ban)
Original Article

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