Complete Guide to Integrating Codex with DeepSeek V4 Pro

This article is reposted from an X Article by @AnchorNode, authored by Dayang.

Prerequisites

1. Install CCX

Download: https://github.com/BenedictKing/ccx/releases/tag/v2.6.82

2. Install CCSWITCH

Download: https://github.com/farion1231/cc-switch/releases

Configuration Steps

Step 1: Run CCX

Once open, select Codex, then click Add.

Step 2: Enter DeepSeek API

Enter the DeepSeek URL and API Key into the fields provided.

Step 3: Open CCSWITCH

First, select the GPT icon, then click Add.

Note: The API Key here is the one you set when logging into CCX (not the DeepSeek API Key). The API request address should also be filled in according to the API address in CCX. Click “Get Model List”, and you will be able to select DeepSeek.

Step 4: Check 1M Context

Remember to scroll down and check the 1M Context Window option, then save.

Step 5: Log in to Codex

Reopen Codex and log in using the API Key configured in CCSWITCH.

The Real Value of Codex

Codex’s value lies not in the model itself, but in its capability as a coding agent framework. Even if the model changes, these core capabilities provided by Codex remain:

Autonomous Execution: It’s not a chat; it’s about directly reading files, writing code, running commands, and modifying projects—executing a task from start to finish with a single instruction.
Sandbox Security: All operations run in a restricted environment. Sensitive actions require approval, preventing system crashes.
File Editing: Uses apply_patch for precise modifications, rather than rewriting the entire file.
Plan Mode: Complex tasks are broken down into steps before execution, with visible progress.
Skill System: Excel/PowerPoint operations and reusable skills.

Discussion

Feel free to join the author’s Telegram group for discussion: https://t.me/anchorballcourt

Original link: https://x.com/AnchorNode/status/2053717542745833870