Catching a glimpse of Dario Amodei these days is like finding a rare butterfly. The chief executive officer of Anthropic PBC was scheduled to meet with 50 fellow bosses from some of Europe¡¯s largest companies in Oxfordshire recently, an exclusive convocation by his firm at a Jacobean-style mansion that included former British Prime Minister Rishi Sunak, now an Anthropic adviser. Amodei had been scheduled to travel to another part of Europe afterwards, but his trip was cut short to just one or two days in the U.K.

Why is he so hard to pin down? Because of Mythos, the artificial-intelligence model he teased last month as too dangerous to launch. Anthropic staff have access to the technology and say it is more human than its forerunners. But it could also be weaponized for cyberattacks, so the company has let a few dozen organizations test and preview it.

The model¡¯s power and potential will help Amodei¡¯s efforts to repair relations with the Trump administration and he¡¯s eager too for Mythos to finally reach members of the public. That requires a juggling act that, for now, Amodei is managing to pull off.