Not OP, but I use Codex for back-end, scripting, and SQL. Claude Code for most front-end. I have found that when one faces a challenge, the other often can punch through and solve the problem. I even have them work together (moving thoughts and markdown plans back and fourth) and that works wonders.
My progression: Cursor in '24, Roo code mid '25, Claude Code in Q2 '25, Codex CLI in Q3 `25.
My progression: Cursor in '24, Roo code mid '25, Claude Code in Q2 '25, Codex CLI in Q3 `25.