Claude Code vs. Codex: Which Should You Choose in 2026
Both Claude Code and Codex are extremely capable and powerful CLI-based coding tools, but which should you choose?
Why choose Claude Code
More features – Claude Code has way more features than Codex. From things like hooks, rewind, “Claude in Chrome”, plugins and plan mode. Claude definitely wins here when it comes to being more feature-rich. Codex has many of the core features but still lacks these more advanced ones.
MCP experience is better – installing and managing your MCPs in Claude Code is overall a better experience and easier to do. Codex simply has a more frustrating MCP experience.
Plan mode – Codex does not have a true “plan mode” like Claude Code does. Claude even has a model called “opusplan” which uses Opus for planning and Sonnet for executing which is amazing! Codex can kind of make a plan and to do list for you but not via any sort of official mode.
Why choose Codex
Way, way cheaper – even on $150+/mo plan, it’s extremely common to hit daily and weekly Claude Code usage limits. With a $20/mo OpenAI plan, you can do just as much with little to no difference in code quality (sometimes even higher quality).
Better at UI – Codex appears to excel most at UI-based tasks it’s given compared to Claude.
Usually gets it right first try – Having used Codex for the last couple weeks, my experience has been that I rarely have to ask it more than once to solve a problem. Claude Code often does not get it right first try, especially when it comes to UI tasks or if not given a specific enough prompt.
What other differences are there?
Thinking and reasoning – there is a noticeable difference in the amount of time Codex spends thinking and reasoning vs. Claude Code. If you’re someone who knows exactly what they want, can write a good prompt and point Claude in the right direction, then it may be the better tool for you in this case. Claude usually likes to fly by the seat of its pants more, and normally gets tasks done much faster. Codex, on the other hand, spends drastically more time thinking and reasoning (including reading your files, calling MCPs, etc). If you’re someone who tends to give less detailed prompts, does not know their way around codebases, or how to read the code, Codex might be more advantageous for you here.
Details in the UI – Codex is generally more detailed in the UI by default. It’ll show you exactly what it’s doing and usually explain it too. Claude Code makes you make some extra keystrokes to see what it’s doing and generally gives you less of a narrative of what it’s thinking and doing too.
Claude proprietary AGENTS.md file – While Codex uses a “industry standard” Agents.md file for rules and guidelines, Claude uses its own proprietary version of this called “Claude.md”. While not important to some, Codex’s methods here may make going between other AI coding tools easier, as well as manually updating the agent’s rules.
Verdict
For those who know my AI coding preferences, I have been a long time Claude stan. However, as of late, I have been much preferring Codex! Specifically for these reasons: price, UI and getting it right first try. No matter which one you choose, both are impressive, capable and powerful. If you’re a more advanced programmer, Claude might be a better choice. Conversely, if you want the agent to figure most things out for you, or if you don’t want to fork out hundreds a month (understandable), Codex might be better for you.
What are your thoughts? Claude? Codex? A different AI coding tool?