Come on now. GPT 4 is not even out for two months. API access is not yet widely available. Legal questions are preventing many conservative players from adoption. How fast do you think progress propagates?
e.g. say you used GPT-4 to clone something like Fivetran but with your own unique features. It could even be way better across some dimensions, but you still need to convince users to try it and I don't see AI helping with that (at least not yet!).
Unless you have a special deal (Microsoft) the only performant option is 3.5-turbo. In my experience for coding and text summarization it’s totally fine with a limited benefit from GPT-4, which is more impressive at higher order reasoning and planning.