> In the early GPT-4 days I tested the same model side by side across the subscription and API. The API always produced a longer better answer.
If you are comparing responses in ChatGPT to the API, it's apples and oranges, since one applies a very opinionated system prompt and the other does not.
Since you haven't figured that out in 3 years, I didn't bother reading the rest of your comment.
I don’t know about ChatGPT, but in Claude Code I _have_ been able to do a side-by-side comparison of API-based metered billing vs subscription billing, in the same UI. You just switch from one to the other using /login.
You should probably not be so quick to dismiss what people say as nonsense.
If you are comparing responses in ChatGPT to the API, it's apples and oranges, since one applies a very opinionated system prompt and the other does not.
Since you haven't figured that out in 3 years, I didn't bother reading the rest of your comment.