It also fits nicely. Claude plans better, and Codex has way higher limits.
We can use several different topologies (2 or 3 agents, etc.) but currently primarily use pair programming teams consisting of an opus4.7 for implementation and a codex5.5 for plan and code reviews, with a codex5.5 run-manager that pushes the agent lanes along and keeps things moving if they get stuck or escalate reviews to run-manager decisions.
Escalation to run-manager is a pretty regular thing as Codex5.5 generally picky and thorough and opus4.7 pushes back at times, and after three codex rejections we allow opus4.7 to escalate to run-manager decision to settle it. Usually, opus4.7 agrees and will continue iterating but it's not unusual that it will push back and escalate.
I've found codex5.5 is extremely capable. I just now finished a large multi-phase orchestrated swarm run with codex5.5 (xhigh) as the run-manager, presiding over 8 paired lanes, with 8 opus4.7 (high) implementers and 8 codex5.5 (high) reviewers, so 16 agents orchestrated and working in a swarm together. Codex5.5 managed that run perfectly for 14 hours with zero intervention needed by me.
Overall, I prefer to let opus4.7 draft the plans and then let codex5.5 offer git-diff style change feedback on plans, then let opus implement and codex review/manage. This seems to get the best result for me.