I subscribed to gpt4 for awhile and recently I let my subscription lapse. In the chatgpt4 model I couldn't get it to complete anything always getting the // add more lines if you need them but in the free got4o model things work first try. I'm guessing with limitations on the free version everything needs to be one shot output. In gpt4 people are given more calls so they force you to reprompt 4 or 5 times.