You Can Run Claude AND Codex Together. Here's How.

What you'll learn

Claude and Codex have complementary superpowers: Claude is your creative pair-programmer for planning and bulk code, Codex is the auditor catching edge cases and errors you miss
The OpenAI Codex plugin lets you run Codex as a sidekick within Claude Code without leaving your terminal, and switch between models on the fly
Five everyday patterns: code review, adversarial planning loop, background rescue with parallel auditing, stress test for high-stakes work, and full feature cycle
The plugin enriches Claude Code rather than replacing it, so you stop debating which model is better that week
A Claude Max plan ($100) plus ChatGPT plan ($20) is an underrated economics combo for agentic coding with routine parallel auditing

Frequently asked questions

How does the Codex plugin work and what are the seven slash commands?

The plugin lets you run Codex as adviser or executor within Claude Code via slash commands. The four real decisions behind the seven commands determine whether Codex advises, writes code, or audits in parallel, with options like review gates and model selection in the terminal.

What is the difference between Claude and Codex in this workflow and when do you use which model?

Claude excels at planning, design, and writing bulk code; Codex excels at finding edge cases and auditing. You use Claude for creative work and run Codex for parallel auditing, especially on complex or high-stakes code.

What is the 'adversarial planning loop' pattern and how does it help with feature development?

This pattern has Codex grill your plan until it runs out of challenges, helping you build more robust plans before writing code. The video demonstrates this with an example where expiry dates are added correctly after adversarial review.

What are the total costs of this setup and why is it an underrated combo?

Claude Max ($100/month) plus ChatGPT plan ($20/month) totals $120/month. It is underrated because you get routine parallel auditing and high-quality code review for this price without most developers recognizing the value of the combination.

Topics

ai-coding pair-programming claude codex developer-tools

In this video

OpenAI

Description from the channel

Master Claude Code: https://www.skool.com/earlyaidopters/about Get the FREE Guides: https://markkashef.gumroad.com/l/codex-claude-dynamic-duo-kit Link to Codex Claude Code Plugin: https://github.com/openai/codex-plugin-cc Book a consultation: https://calendly.com/d/crfp-qz3-m4z --- Every week somebody crowns a new winner. One week it is Claude Code, the next it is Codex, and the cycle repeats. The actual play is to use both. A few weeks ago OpenAI shipped a plugin that lets you run Codex as a sidekick to Claude Code without ever leaving your terminal, and almost nobody is showing you how to actually use it. In this video I break down the dynamic duo. Claude Code is your creative pair-programmer for planning, copy, design taste, and writing the bulk of the code. Codex is the master surgeon and ruthless auditor that catches the edge cases Claude glossed over. Neither is better. They have different superpowers, and once you wire them together you stop caring which model is having a good week. I walk through how the plugin works, the four real decisions hidden inside the seven slash commands, and the five patterns I use almost every day. The everyday code review. The adversarial planning loop where Codex grills the plan until it has nothing left to say. The background rescue when you are stuck and want a SWAT team auditing in parallel. The pre-ship stress test for high stakes work. And the full feature cycle that ties it all together. I also show why a $100 Claude Max plan plus the $20 ChatGPT plan is the most underrated combo in agentic coding right now. If you want to go deeper on Claude Code, context engineering, and the workflows I use day in and day out, the first link above is my Claude Code Magic course. New modules drop every week. 0:00 Why everyone keeps picking the wrong winner 0:40 What the Codex plugin actually looks like in Claude Code 1:13 The $20 ChatGPT plan is enough 1:31 Where each model wins and where each one loses 2:17 Why this plugin enriches Claude Code instead of replacing it 2:41 Install once, switch models on the fly 2:58 Codex as adviser vs Codex as executor 3:14 The 4 real decisions hiding inside the 7 slash commands 3:33 Pattern 1. Everyday code review 3:42 Pattern 2. The adversarial planning loop 4:16 Pattern 3. Background rescue with the Codex SWAT team 4:40 The review gate. Powerful and expensive 5:21 Background flag and model selection in the terminal 6:42 Real demo. A Bitly clone audited end to end 7:36 Watching the rescue run while we keep building 8:18 The 25 minute audit Codex returned 8:50 The adversarial planning loop in action 9:23 Adding expiry dates the right way 10:21 Why I now spend 30 to 90 minutes purely planning 10:42 Pattern 3 in flow state. Build with Claude, audit with Codex in parallel 11:46 Pattern 4. The Debbie Downer that stops you from shipping bugs 12:47 Pattern 5. The full feature cycle 13:23 The actual economics. $100 Claude Max + $20 Codex 14:14 Grab the diagrams as a cheat sheet #ClaudeCode #Codex #OpenAI #Anthropic #ClaudeCodePlugin #AgenticCoding #VibeCoding #AICodingWorkflow #PairProgramming #AdversarialReview #DeveloperTools #AICodeReview #ContextEngineering #ChatGPT #ClaudeAI