Earlier quoted context omitted.
> I personally never use the ChatGPT webapp or any other chatbot webapps — instead using the APIs directly — because being able to control the system prompt is very important, as random changes can be frustrating and unpredictable. This assumes that API requests don't have additional system prompts attached to them.
Actually you can't do "system" roles at all with OpenAI models now. You can use the "developer" role which is above the "user" role but below "platform" in the hierarchy. https://cdn.openai.com/spec/model-spec-2024-05-08.html#follo...
> "developer": from the application developer (possibly OpenAI), formerly "system"
(That said, I guess what you said about "platform" being above "system"/"developer" still holds.)