Thank you for the question!
Right now, I personally feel that Codex is more effective than the latest Claude Code (4.8) for most practical development work.
The main reasons are:
- It tends to handle larger, repository-wide changes more reliably with fewer off-track modifications.
- The GitHub integration feels more seamless — it produces cleaner, better-structured PRs that are easier to review.
- It stays better within the scope I define, which reduces the amount of back-and-forth needed compared to the more interactive approach of Claude Code.
That said, Claude Code is still excellent for exploratory investigation and smaller, step-by-step tasks where you want tight control and frequent confirmations.
It really depends on the type of work, but for end-to-end implementation and shipping features, Codex has been giving me better results lately.
What kind of tasks are you mainly using these agents for?