For me, AI is like a documentation/Googlefu accelerant. There are so many little things that I know exactly what I want to do, but can't remember the syntax or usage.
For example, writing IaC especially for AWS, I have to look up tons of stuff. Asking AI gets me answers and examples extremely fast. If I'm learning the IaC for a new service I'll look over the AWS docs, but if I just need a quick answer/refresher, AI is much faster than going and looking it up.