Last verified Nov 8, 2026

Claude Code vs Codex for beginners

Both Claude Code (by Anthropic) and Codex (by OpenAI) are coding agents that read your project, run commands with your permission, and follow a global instructions file (`~/.claude/CLAUDE.md` vs `~/.codex/AGENTS.md`).

CriterionClaude CodeCodex
Global instructions file~/.claude/CLAUDE.md~/.codex/AGENTS.md (reads 32 KiB by default; our guide is ≤ 24 KB)
Desktop app for beginnersClaude desktop app with a visual Code tab and folder picker.Codex app / CLI and ChatGPT integration.
Permission controlsManual mode asks before editing files or running terminal commands.Approval modes ask before running commands or writing outside the workspace.
Account neededPaid Claude plan (Pro or higher).Paid ChatGPT plan or OpenAI API key.

When to choose Claude Code

  • You want the exact screens and menus used as the default in our Path.
  • You already have a paid Claude subscription.

When to choose Codex

  • You already pay for ChatGPT Plus/Pro and don't want a second AI subscription to start learning.
  • You want an agent that uses the open AGENTS.md standard natively.

Copy for your agent

Read your global instructions, confirm which version of the Agentic Makers Guide you follow, and tell me where my project is on the 6-stage Path.

Next stepInstall the guide in your agent

Last reviewed Nov 8, 2026