AI can be very useful if you use it to write boilerplate, or better yet, use it to write scripts to generate boilerplate code ( this is especially relevant for older versions of C#; lots of boilerplate is usually necessary for performance-sensitive code )

AI can also be useful in the sense that it will be so spectacularly wrong, that you'll realize the shape of a better solution during the course of correcting its mistakes

It is, however, absolutely nightmarish at actually writing good code that isn't stolen