Short answer: you can’t directly integrate Codex into full VisualStudio (IDE) yet. It mainly works with
Visual Studio Code, not Microsoft Visual Studio.
But here’s the proper, practical setup depending on what you want:
Option 1 (Recommended): Use Codex in VS Code
This is the official and best-supported way.
Steps:
Install Visual Studio Code
Open Extensions panel (Ctrl + Shift + X)
Search for “OpenAI Codex” extension
Install it
Sign in using your ChatGPT account
Open your project folder
Now you can:
Ask Codex to write code
Fix bugs
Refactor files
Run tasks inside your repo
Codex works directly inside your editor and understands your project context.
Option 2: Use Codex CLI inside Visual Studio
If you insist on using Microsoft Visual Studio, do this workaround:
Steps:
Install Codex CLI
Open Terminal inside Visual Studio
Run:
codex
Now you can:
Generate code
Modify files manually
Copy-paste results into your solution
This is not seamless integration, just a workaround.
Important Reality (Don’t Miss This)
Codex IDE extension is officially built for VS Code only
Visual Studio (2022/2026) does NOT have native Codex plugin yet
If you want tight integration → VS Code is currently the only proper choice
Better Alternative for Visual Studio Users
If you want AI directly inside Visual Studio:
Use GitHub Copilot (best supported)
Or wait for official Codex support
My Recommendation (Based on Your .NET Work)
Since you're working with:
ASP.NET MVC
C#
Production apps
Use this combo:
Visual Studio → main development
VS Code + Codex → AI coding assistant
This gives you best of both worlds
Markdown for AI
A clean, structured version of this page for AI assistants and LLMs.
We use cookies to ensure you have the best browsing experience on our website. By using our site, you
acknowledge that you have read and understood our
Cookie Policy &
Privacy Policy.
Short answer: you can’t directly integrate Codex into full Visual Studio (IDE) yet. It mainly works with Visual Studio Code, not Microsoft Visual Studio.
But here’s the proper, practical setup depending on what you want:
Option 1 (Recommended): Use Codex in VS Code
This is the official and best-supported way.
Steps:
Ctrl + Shift + X)Now you can:
Codex works directly inside your editor and understands your project context.
Option 2: Use Codex CLI inside Visual Studio
If you insist on using Microsoft Visual Studio, do this workaround:
Steps:
Now you can:
This is not seamless integration, just a workaround.
Important Reality (Don’t Miss This)
Better Alternative for Visual Studio Users
If you want AI directly inside Visual Studio:
My Recommendation (Based on Your .NET Work)
Since you're working with:
Use this combo: