Codex CLI on Bruce on AI Engineering

5 AI Coding Tools Compared: Why Picking Just One Is the Wrong Question

Fri, 03 Apr 2026 10:00:00 +0800

Asking “which AI coding tool is the best” in 2026 is like asking whether a hammer is better than a screwdriver. The question reveals a misunderstanding of the problem.

I have used all five major AI coding tools — Claude Code, Cursor, GitHub Copilot, OpenAI’s Codex CLI, and Google’s Gemini CLI — daily for the past eight months across three production codebases. The conclusion that surprised me most: the developers shipping the fastest are not the ones with the most expensive tool. They are the ones who figured out which two tools to combine.

Codex CLI Deep Dive: Setup, Config, and 20+ Power User Tips

Sat, 07 Mar 2026 14:00:00 +0800

Most Codex CLI tutorials stop at “here are the commands.” They translate the docs and call it a day. This guide goes deeper — covering the configuration architecture, security model philosophy, real-world workflow patterns, and honest comparison with Claude Code that you won’t find in surface-level articles.

By the end, you’ll have:

A production-ready Codex CLI configuration you can copy and use immediately
Deep understanding of the sandbox security model and permission system
20+ battle-tested tips for daily development
An objective Claude Code comparison to help you choose the right tool

What Is Codex CLI?

Codex CLI is not “ChatGPT in a terminal.” It’s OpenAI’s local AI coding agent that can:

Codex CLI Mastery Guide: 20+ Power Tips for Real-World Development

Thu, 12 Feb 2026 16:02:00 +0800

Most Codex CLI tutorials out there simply restate the official docs — listing commands without explaining when to use them, how to combine them, or what pitfalls to avoid.

This guide is different. It starts from real development scenarios and goes beyond the basics, covering the configuration hierarchy, the philosophy behind Codex’s security model, an honest comparison with Claude Code, and advanced techniques the docs barely mention.