How to get longer replies/output in chatgpt and gpt4?

How to get longer replies/output in chatgpt and gpt4?

Would the usage of the 32k version increase the length?
Is there a difference in the reply/output length between the “original” chatgpt and what can be achieved by using the API?

(Those feel like questions that should have come up before, but unfortunately, I couldn’t find any information about that.)

Please help, this info is really valuable :face_holding_back_tears: