I've been running Codex CLI with the new model since it released. Yesterday it was a PEREFECT machine and I have been really impressed. Today gpt-5-codex feels like completely lobotomized?? It's making REALLY dumb mistakes and wasting my time, in the SAME TASKS that yesterday it nailed! Maybe some issues on my end, but I tried to rule them out (maybe my prompting is worse today? Doesn't seem like it). I have reverted back to CC and "normal" gpt-5 for now.