Jamie Dimon, standing alongside Anthropic CEO Dario Amodei in New York on Tuesday, delivered a strong vote of confidence in the surging artificial intelligence infrastructure buildout. The head of the world's largest bank told Wall Street the massive capital expenditure is justified, even as investor anxiety grows over whether AI revenue can keep pace with spending. The endorsement comes as Big Tech earnings reports last week underscored how the buildout is propping up both stock markets and broader U.S. economic growth.

The projected capex wave is expected to top $1 trillion next year, making Dimon's public backing a significant signal for markets. "The technology is so powerful, it's worth the trillion-dollar investment," Dimon said at an Anthropic event that also unveiled new partnerships and AI agents tailored for financial services. His remarks directly address a growing debate about whether the returns from AI will justify the enormous outlays.

Dimon and Amodei also discussed Mythos, Anthropic's powerful new model whose cybersecurity capabilities recently prompted an emergency meeting. Treasury Secretary Scott Bessent and Federal Reserve Chair Jerome Powell convened that meeting with major bank CEOs last month over concerns about the model's potential risks. Dimon, who was invited but unable to attend, said banks have since gathered to "triage the issues."

The JPMorgan chief argued that protective measures should apply to all banks, not just the largest institutions. "The government can't do all" the work, he said, implying the private sector must play a central role in managing the risks. His comments suggest a collaborative approach between regulators and financial firms will be essential going forward.