AI Leaders Call for Brakes as Wall Street Reprices the Race

Nvidia shares fell 3.4% on Monday, while CrowdStrike and Palo Alto Networks surged roughly 14% and 13%. The split captured Wall Street’s first instinct after an unusual weekend of agreement among AI’s fiercest competitors: sell the machinery of acceleration, buy protection against what that machinery might unleash.

The catalyst was a 3,800-word essay from Anthropic CEO Dario Amodei, who argued that frontier-model capabilities are advancing faster than safety systems, regulation and public institutions can absorb. He warned that within six to 12 months, a swarm of autonomous agents might be capable of seizing control of much of the internet through a persistent botnet, with potentially enormous financial damage.

Amodei’s proposal was more structured than a blanket pause. Anthropic said it would give independent evaluators permanent, employee-level access to its systems so they could inspect safety practices, report incidents and assess model behavior during training. He also called for common standards among frontier labs and international coordination, including engagement with China.

The striking part was who joined him. Elon Musk reposted the essay with three words, “Dario is right.” OpenAI CEO Sam Altman said pacing the frontier had been a major internal discussion and committed OpenAI to the independent-evaluator model. Demis Hassabis, Google DeepMind’s co-founder and Alphabet’s chief scientist, said Amodei’s direction was correct, while cautioning that the details still needed work.

Markets treated the language as a threat to the enormous capital cycle built around bigger models, data centers and advanced chips. Semiconductor names including Nvidia, Broadcom, AMD and Intel weakened, while software and cybersecurity stocks benefited from the possibility that model makers might spend more time improving safeguards and less time trying to leapfrog one another. The rotation was sharp, but it did not amount to a collapse. The Nasdaq ended Monday down 0.6%, and Nvidia rebounded 0.6% Tuesday.

The political response points to the central obstacle. President Donald Trump rejected a slowdown, arguing that restraint would hand China an advantage. Nvidia CEO Jensen Huang also pushed back on the idea that the AI buildout should be throttled. The executives may agree that safety work is urgent. They do not agree on who should set the speed limit, or whether the race can afford one.