AI is core to JPMorgan's $18 billion tech investment. Here's what its execs revealed about how it's reshaping the bank.

JPMorgan's asset and wealth management CEO, Mary Callahan Erdoes, talked about how AI is helping advisors anticipate clients' needs.

Heidi Gutman/CNBC

• JPMorgan is scaling AI tools across various business lines.
• At its Investor Day, the bank's leaders shared how AI is changing workflows across its main businesses.
• JPMorgan's tech spending is $18 billion, focusing on AI, machine learning, and cloud.

When JPMorgan CFO Jeremy Barnum recently took some time to experiment with "vibe coding," he was amazed.