The author considers Luna Extra High a more practical workhorse on a Plus account: Sol is for “cracking hard problems” and making plans, while Luna Extra High is for day-to-day execution. The comments also include opposing experiences: one person says Luna x-high searches for a long time but changes only a few lines of code, while another considers Luna Max more useful than Terra at the same cost.
I have been reading a lot of 5.6 related praise and complaint themed posts here and I can definitely concur with almost… This is a necessary excerpt; read the original source for full context.
GPT-5.6 Luna