I guess you are generally right. My prompts are lengthy, since I let GPT-3 handle the full html syntax of both sides, mathjax and so forth. I found the ada model to be not sufficient, but have not tried the other two models, I will try those! There is room for improvement on my side.

From a budget-conscious student's perspective, this amounts to roughly $20 per semester in my case, just for the tags. Despite this, I am still fascinated by the automation possibilities offered by GPT-3.