Codex vs. Claude: one dev's honest week of switching
A Ruby/Rails dev logs a week of using Codex over Claude, and the results are genuinely mixed. Codex writes less architecture, fewer comments, and gets changes done fast — but "fast" disappears when finishing the PR takes hunched reruns. It also rebased a 4,000-line branch nightmare and fumbled Jira logins, where Claude read intent better. The sharpest takeaway: speed of generation isn't the bottleneck, finishing is.