Codex

Codex — All Guides

Codex is OpenAI's AI coding agent that writes features, fixes bugs, runs tests, and prepares code for review. It's built for developers and engineering teams who want to delegate complex coding tasks and ship software faster.

Guides & Articles

The ultimate Codex tutorial for beginners (GPT 5.5 edition)

The ultimate Codex tutorial for beginners (GPT 5.5 edition)

Learn how to install OpenAI Codex, connect it to your tools, and use GPT 5.5 to build landing pages, automate newsletters, create marketing plans, and generate …

How to actually be productive with Claude Code and Codex in 2026

How to actually be productive with Claude Code and Codex in 2026

Most teams have figured out how to get AI to write code—but not how to ship reliable products with it. This guide walks through practical workflows for using Cl…

How to build an animated AI website with Codex and GPT‑5.5

How to build an animated AI website with Codex and GPT‑5.5

Learn how to turn a static idea into a fully animated, scroll‑driven website using AI. This guide walks through generating visuals, creating video, and building…

ChatGPT Codex adds banked resets for smoother AI coding

ChatGPT Codex adds banked resets for smoother AI coding

OpenAI has rolled out a powerful quality-of-life update for ChatGPT Codex: banked resets. Instead of losing unused resets on a fixed schedule, you can now save …

Stop using Claude? Why so many power users are switching to OpenAI Codex

Stop using Claude? Why so many power users are switching to OpenAI Codex

Codex is emerging as OpenAI’s “super app” for AI agents, coding, documents, and automation. This guide explains what makes Codex different from ChatGPT and Clau…

Claude Opus 4.8 vs GPT 5.5 Codex in Blender: who really builds better 3D scenes?

Claude Opus 4.8 vs GPT 5.5 Codex in Blender: who really builds better 3D scenes?

This guide walks through a head-to-head Blender showdown between Claude Opus 4.8 and GPT 5.5 Codex, using the Blender MCP to let AI agents directly control Blen…

Codex full course 2026: how to build real apps, docs, and automations with OpenAI’s new desktop agent

Codex full course 2026: how to build real apps, docs, and automations with OpenAI’s new desktop agent

This in-depth guide walks through OpenAI’s Codex desktop app: how it manages projects and files, uses skills and plugins, automates workflows, and even builds f…

Claude Fable 5 vs Opus 4.8 vs GPT‑5.5 Codex: which AI builds the best platformer?

Claude Fable 5 vs Opus 4.8 vs GPT‑5.5 Codex: which AI builds the best platformer?

Three top AI models were given the exact same prompt: build a complete Mario-style platformer in a single HTML file. Here’s how Claude Fable 5, Claude Opus 4.8,…

Claude Fable 5 vs three AIs: which model builds the better Fortnite clone?

Claude Fable 5 vs three AIs: which model builds the better Fortnite clone?

A creator puts four leading coding AIs to the test by asking them to build a Fortnite-style battle royale from scratch. Here’s how Grok, Gemini 3.5, GPT‑5.5 Cod…

Ranking the best AI tools of 2026: what’s actually worth using

Ranking the best AI tools of 2026: what’s actually worth using

Drowning in AI tools and subscriptions? This guide breaks down the most popular chatbots, coding agents, no‑code builders, and creative tools of 2026 into a sim…