Run Claude Code with GPT 5.6 Sol in 5 Minutes

What you need

• Claude Code installed in your terminal (not the Claude desktop app)

• An OpenAI ChatGPT account (no Claude account needed)

• The Claudex GitHub repository link

• About five minutes

Step by step

1. 1

   Open the Claudex GitHub repository

   0:09

   Open the Claudex repository from the video description. It holds step-by-step instructions that your Claude Code will follow. Read through it first so you know what happens in the background.

   Claudex setup repositoryCopy

   https://github.com/migueltorrezd/claudex

2. 2

   Use Claude Code in the terminal

   0:34

   Open Claude Code in your terminal. This setup does not work in the Claude desktop app. If you do not have the terminal version yet, you can ask Claude Code to help you install it.

3. 3

   Ask Claude Code to explain the repository

   0:53

   Paste the repository link into your Claude Code session and ask it to explain what is inside. Claude Code fetches the page, reads the files and breaks down the setup steps for you.

   Prompt to paste with the linkCopy

   Hey, Claude, can you please explain to me what's inside of this GitHub link? https://github.com/migueltorrezd/claudex

4. 4

   Check the diagram and run the setup

   1:31

   Look at the diagram in the repository to understand how the pieces connect. Then let Claude Code follow the setup steps. Sign in with your OpenAI ChatGPT account when needed. The setup takes about five minutes and asks you how you want it configured.

5. 5

   Launch Claude Code with the ccx command

   2:04

   Once installed, run the ccx command in your terminal. The header should show GPT 5.6 Sol. It is used for the main agent, the sub-agents and the background tasks.

   Launch commandCopy

   ccx

6. 6

   Pick the model you want

   2:34

   Select the model you want to use directly inside the session. I use Sol High in the video.

7. 7

   Compare it with Codex

   3:30

   Try your normal coding tasks with Claude Code running GPT 5.6 Sol, then try the same work in the Codex desktop app. Keep the one you prefer; both are valid options.

Watch next

• 7:01Make Claude Fable 5 Use GPT 5.6 Sol: Here's HowInstall the official Codex plugin so Fable 5 directs GPT 5.6 Sol subagents.
• 26:07Master Codex Desktop in 30 MinutesSet up Codex desktop so you can compare it properly with your Claude Code setup.