This article does a good job of comparing functionality between codex and claude, but I see very little discussion here or elsewhere about the actual UX of the CLI tools. Codex is absolute garbage when it comes to the look, feel, and overall polish of the CLI experience (no syntax highlighting, no proper diff displays, no vim mode, poor visual differentiation of user vs agent messages, etc). Claude is a tiny bit better. However, both fall flat on their face compared to some open source agentic TUIs like Opencode, Crush, etc.