Comment by selfhoster11

$1 is not a micro-transaction, it's just a regular transaction. It's not micro until it's only several cents at most.

I'm not the parent, but when I use the OpenAI API (not ChatGPT API, that stuff is very cheap in comparison), I do keep an eye on my spend. For the more variable models like o3, o3-pro, GPT-4.5, expenditure can quickly exceed what you decided to spend. I'm glad you can set spending limits if you choose to do so.