Banks are beginning to reap the benefits of generative artificial intelligence (GenAI), observing increased efficiency, clearer understanding leading to actions, and higher profitability. The question is not whether banks will widely adopt GenAI, but "when" and "how". According to a McKinsey report, GenAI could increase the annual revenue of the banking sector by $200-340 billion, equivalent to a 9-15% increase in operating profit - a significant prospect.