My own experience is that I get far far more usage (and better quality code, too) from codex. I downgrade my Claude Max to Claude Pro (the $20 plan) and now using codex with Pro plan exclusively for everything.
Codex announced at 5.3 launch that until April all usage limits are upped so take that into account
Codex announced at 5.3 launch that until April all usage limits are upped so take that into account