Is `Codex` Actually Better Than `Claude Code` Right Now?
Model charts alone can mislead. The useful split is model change vs tool assumptions, so this is a practical pre-switch checklist.
- Official announcements are treated as the first layer, with external measurements and analyst takes added after — cleaner than mixing vendor claims and anecdotes.
Opus 4.7andGPT-5.5are separated from the agents that wrap them, which keeps model quality and workflow design from blurring together.Claude CodeandCodexdiffer by tool assumptions, not just model choice. Switching agents can change repo workflow, review style, and autonomy.- No new benchmark or feature is introduced here. Value is in decision framing, so this lands as a useful comparison, not urgent news.