Anthropic's New A.I. Model Sets Off Global Alarms

When Anthropic told the world this month that it had built an artificial intelligence model so powerful that it was too dangerous to release widely, the company named 11 organizations as partners to help mount a defense.

All were from the United States.

Within two weeks, the model, called Mythos, had set off a global scramble unlike anything yet seen in the A.I. era. Mythos, which Anthropic has said is uncannily capable of finding and exploiting hidden flaws in the software that runs the world's banks, power grids and governments, had become a geopolitical chip — and a U.S. company held it.