I'm not a programmer, but I tried four vibe coding tools to see if I could build anything at all on my own. Here's what I did and did not accomplish.

How chunked arrays turned a frozen machine into a finished climate model ...

Plus is worth it if you often hit Free limits and want priority. Pro is for heavy users who need GPT-5.2 Pro and max quotas. Free is powerful, but all tools come with tighter caps. OpenAI introduced ...