JPMorgan Chase CEO Jamie Dimon says the bank’s use of artificial intelligence has already reduced employment in some areas, while not meaningfully shrinking the firm’s overall operating costs. Speaking during the bank’s second-quarter earnings call, Dimon said AI-driven changes have eliminated or reduced roles in certain JPMorgan divisions by roughly 30% to 40%. He also said that while AI creates efficiency gains, it does not automatically translate into much cheaper day-to-day operations.

According to the reports, Dimon cautions that investors expecting AI to sharply improve profit margins or dramatically lower costs may be disappointed. His comments suggest that even with workforce reductions in targeted functions, competition and ongoing business needs limit the extent to which the bank can cut expenses overall. The accounts present AI as already affecting headcount in specific parts of the organization, but not as a lever that substantially reduces operating expense levels across the company.