> For me it’s meant a huge increase in productivity, at least 3X.

Quote possibly you are doing very common things that are often done and thus are in the training set a lot, the parent post is doing something more novel that forces the model to extrapolate, which they suck at.

Sure, I won’t argue against that. The more complex (and fun) parts of the applications I tend to write myself. The productivity gains are still real though.