for many regulatory, security and policy reasons, all these AI tool, like ChatGPT, copilot...etc are not allowed in the bank, at least i know the one I working for NOT allowed.
i personally really like to use them. I hope someday I can use them at work. They saves me time in searching information, content review, brainstorm ideas, draft out code against certain APIs...I found AI tool very helpful, even have paid for o1 pro mode (just paid for one month to try it out)