Current usage limits make Codex unusable

I just cancelled my subscription to GPT after being with them fairly much from the beginning. I got tired of the increasingly reduced quality which began going downhills badly after 4.0. OpenAI is in desperate need of engineering overhaul. The quality is so low now that the LLM is fairly useless to pay for. I don’t know how anyone can trust Codex, when you can’t even get quality text responses beyond high-school level reasoning.