Eliza, I consult in the Banking, Credit Union, and Finance Company space. The AI see, create, and use tends to fall in two categories: 1) Financial Analysis, 2) Credit Risk Analysis. My personal opinion, which is open to criticism is that AI is the next progression from the early concepts of Big Data. In other words, if you do not have the data, and you do not use all of it than the use of AI will appear meaningless.
If I can offer three examples. On the Financial Analysis front, most institutions have a core system for accounting. Most of the higher end product accommodates, budget numbers, actual numbers, and calculations of ratios. However, most financial institutions do not think of them as departmentalized. Is the Bank or Credit Union a depositor, a lender, a investor, etc? Departmentalization (Department Codes), labor costs, and outside service expenses are not often loaded at the Department level. So the use of benchmarking, peer analysis, and forced place grading, which are the use of AI can not be used where the data doesn't exist. Fortunately, programing is not often needed, just separating the data into available data codes and running the reports.
Credit analysis is something of a different type. The regulators are now using "Probability of Default" and "Loss Given Default" as assessment tools for Loan Loss Reserves. Banks have never thought in terms of "What is the potential for loss in each loan?" AI often need to be "programmed into the outputs such as cashflow and cashflow coverage plus collateral and collateral coverage to really assess risks.
Finally, auditing has long ago moved away from random or systematic testing and migrated to managing the outliers. Therefore, AI can be used as a predictive tool, it the data is sorted by, "What is not normal?" This covers a vast array of uses, but the first criteria needed usually comes from the Finance Department of the institution. "What would normal look like if you saw it?" This usually breaks down to a statistical profile of common outcomes. If you don't have that than AI will not do you much good.
I hope my observations help.