Claude vs Codex: which one should a business owner pick?
Both install on your own computer, both read the one folder you point them at, and both hand you back a file you can open. So "which is more powerful" is the wrong question for an owner. Three smaller things decide it: whose subscription you are already paying for, whether this machine is a Mac or a Windows PC, and whether you want to be asked before anything is changed.
Every cell in the table below comes from the two vendors' official pages as they read today; links are at the bottom. Both change often — if your screen disagrees, trust your screen.
The difference in one table
| What to look at | Claude Code desktop | Codex (inside the ChatGPT desktop app) |
|---|---|---|
| Account you need | The docs state it requires a Pro, Max, Team or Enterprise subscription | The pricing page states it is included in Free, Go, Plus, Pro, Business, Edu and Enterprise, with different allowances |
| Where you install it | The download page offers macOS, Windows (x64 and ARM64), Linux and ChromeOS | The docs page offers macOS, Windows and Linux |
| How you hand it a folder | In the Code tab pick Local, then Select folder | Open a folder or create a project; it uses the files in the location you choose |
| Where the house rules live | CLAUDE.md in the project root, read at the start of every session | AGENTS.md, which the docs say Codex reads before doing any work |
| How much it may do alone | Auto / Manual / Accept edits / Plan. Manual waits for your approval on every change | Ask for approval / Approve for me / Full access. OpenAI advises starting with Ask for approval |
| Extra install on Windows | The docs state Git must be installed for local sessions | The docs do not list Git as a prerequisite |
| Node or a CLI as well? | The docs state the desktop app includes Claude Code, so no separate install | The desktop app is enough; the CLI is a separate route |
Read it and you'll notice the shape is the same on both sides: give it a folder, give it a rules file, decide how much it may do alone. Mostly the names differ.
The three things that actually decide it
- Whose subscription you already pay for. Anthropic's docs state Claude Code requires a Pro, Max, Team or Enterprise subscription — a free account will not get you in. OpenAI's pricing page lists Codex as included even in Free, with a smaller allowance. If you already pay one of them, start there. Do not buy both just to compare.
- Whether this is a Windows machine. Anthropic's docs state that on Windows, Git must be installed for local sessions to work, so that route has one extra installer. OpenAI's docs do not list Git as a prerequisite. Most Macs include Git already, so on a Mac neither route has that step.
- Whether you want to be asked first. On the Claude side, Manual mode waits for your approval on every change. On the Codex side, OpenAI advises starting with Ask for approval. Both can be set to ask — but the default may not be, so set it yourself on day one.
Does it work in my language?
Yes. The buttons are in English on both, but you can write to it in Chinese, Vietnamese or anything else and it answers in the same language, reads your files in that language, and writes output in it. What most people want is not a translated interface — it is buttons that do not block them.
Do not install third-party "localised", "cracked" or "connect it to another model" builds. Those are modified copies of the official app, and your sign-in details and company files pass through someone else's code; neither vendor will help you if it goes wrong. Our install lesson prints the English button text next to where the button sits, so you can find it by position.
When to install neither
Honestly, there are cases where you should install neither today:
- All you want is better letters, tidier copy, or a translation — a browser chat covers that, and the desktop app is extra fuss for nothing.
- You cannot name one specific job. "Install it first and figure it out later" is the expensive path: a month later you will not even remember the password.
- Your data lives inside other people's systems and there are barely any files on your own machine — look at the AI already built into those tools first.
If you do want to choose, the free five-minute check gives you a starting point for your trade, and it is allowed to answer that you do not need this yet.
What neither of them can do
Ignore anyone who tells you it will "automatically post to your customers" once installed. Neither has a WeChat connector, and outbound email, SMS, signatures and payments always wait for you to press the last button. That is a hard rule in our course: a scheduled AI employee produces reports, it never sends anything outbound.
Both also misread things. Start in the ask-first mode, and open what it produced before it goes anywhere. Once the install is done, the next step is winning once — one piece of real work you would be willing to sign off.
FAQ
Is there a Claude desktop app for Windows?
Yes. The official download page lists Windows, including a separate ARM64 build, alongside macOS, Linux and ChromeOS. The docs also state that on Windows, Git must be installed for local sessions to work.
Can I use Claude Code on a free account?
The official docs state Claude Code requires a Pro, Max, Team or Enterprise subscription. OpenAI's pricing page lists Codex as included in plans from Free upward, with different allowances. Check both vendor pages for today's terms.
Does the interface come in my language?
The buttons are English, but you can talk to it in your own language and it will reply, read and write in that language. Avoid third-party translated or cracked builds — your sign-in passes through them.
Should I run both?
You can, but there is little point. Get one of them to produce a real piece of work first. Installing both usually ends with neither being used.
I am not technical at all — which is quicker to start?
Start with whichever subscription you already pay for. The gap between them is much smaller than the gap between having a specific job to finish and not having one.
Related lessons
- How to install Claude Code desktop or Codex (ChatGPT desktop) on Windows and Mac
- Win one: turn scattered client requests into a reply pack you can sign off
- AI is a colleague, not a search box
Next step
Sources (checked 2026-09-07):Claude Code desktop quickstart · Claude Code overview · Claude download page · ChatGPT desktop app (official docs) · ChatGPT and Codex pricing · Codex permission modes
Last checked: 2026-09-07