JPMorgan Chase Chief Executive Jamie Dimon on Wednesday described Anthropic’s Mythos artificial intelligence as a "real issue" that the U.S. government is actively addressing, reinforcing concerns that prompted Washington to step in.
Speaking at Senator Dave McCormick’s Pennsylvania Defense and Innovation Summit, Dimon emphasized the need to limit access to the most capable AI systems. He used a stark analogy to underline his point:
"you’re giving ballistic missiles to individuals with Mythos."
Anthropic released Mythos in April to a select group of users that included JPMorgan. The model has drawn attention from financial firms because it is regarded as among the most sophisticated tools for identifying cybersecurity vulnerabilities, enabling institutions to uncover and remediate weaknesses more quickly.
In June, U.S. authorities ordered Anthropic to restrict foreign nationals' access to its leading models, Fable 5 and Mythos 5, citing national security concerns. That directive forced Anthropic to halt global access to the affected models. The government later lifted those specific restrictions after Anthropic implemented additional safeguards.
The episode illustrates growing tensions between technological advancement and national security oversight. Governments and technology companies are wrestling with the potential for misuse of AI systems capable of finding software vulnerabilities, and U.S. regulators have increased scrutiny of new model releases amid concerns these capabilities could be leveraged by military intelligence services in China, Russia or other countries of concern.
Dimon’s comments align with this broader regulatory focus and reflect the particular sensitivity around powerful AI models that can accelerate discovery of system weaknesses. Financial institutions have a direct operational interest in such tools because they can strengthen defenses, but the same capabilities also raise the prospect of exploitation if access is not tightly controlled.
Anthropic could not be immediately reached for comment on Dimon’s remarks outside regular business hours.