I've also had the exact opposite experience with tone. Claude Code wants to build with me, and Codex wants to go off on its own for a while before returning with opinions.
Its likely that both are steering towards the middle from their current relative extremes and converging to nearly the same place.
well with the recent delays i can easily find claude code going off on it's own for 20 minutes and have no idea what it's going to come back with. but one time it overflowed it's context on a simple question, and then used up the rest of my session window. in a way a lot of ai assistants have ime have this awkward thing where they complicate something in a non-visible and think about it for a long time burning up context before coming up with a summary based upon some misconception.