I've been using both apps for a while and I couldn't resist comparing them. To me, there's one clear winner. I judge them based on my gut feeling and the following: Better spacing all around the app With Codex, the options and sections are better spaced out. It feels less cramped, which makes the app easier to navigate and read the chat responses. Claude Code feels to busy and crowded. Ultimately, I find Codex more appealing. Sections better delimited Codex has all the options in one place.