interview

home / developersection / interviews / what is codex do?

Ask Question
Ravi Vishwakarma

IT-Hardware & Networking

Ravi Vishwakarma is a dedicated Software Developer with a passion for crafting efficient and innovative solutions. With a keen eye for detail and years of experience, he excels in developing robust software systems that meet client needs. His expertise spans across multiple programming languages and technologies, making him a valuable asset in any software development project.

Message
Can you answer this question?
Answer

1 Answers

Ravi Vishwakarma

Ravi Vishwakarma

09-Mar-2026

Codex is an AI coding system developed by OpenAI that helps developers write, understand, and manage code automatically.
It acts like an AI software engineer that can read instructions in plain English and convert them into working code.

Main things Codex can do

1. Write code from instructions

You can type:

Create a login API in C#

Codex can generate the code for you.

It supports many languages:

  • C#
  • JavaScript
  • Python
  • Java
  • SQL
  • HTML / CSS

and more

2. Fix bugs in existing code

Codex can read your code and:

  • find errors
  • suggest fixes
  • rewrite the code in a better way

Example:

Fix null reference error in this method

3. Understand full projects

Codex can read multiple files and understand how the project works.

It can answer questions like:

  • What does this function do?
  • Where is this variable used?
  • Why is this error happening?

4. Generate tests automatically

Codex can create:

  • Unit tests
  • API tests
  • Validation tests

Example:

Write unit tests for this class

5. Help with refactoring

Codex can improve old code.

Example:

  • Convert old code to new syntax
  • Optimize performance
  • Rename variables properly
  • Remove duplicate code

6. Automate development tasks

Codex can help with:

  • Creating APIs
  • Database queries
  • Model classes
  • Controllers
  • Scripts
  • Config files

Difference between ChatGPT and Codex

Feature ChatGPT Codex
General questions Yes No
Coding help Yes Yes
Full project editing Limited Yes
Run tests No Yes
Works like developer No Yes

Codex is focused on coding, while ChatGPT is general AI.

Simple definition

Codex is an AI that can write, read, fix, and manage code like a programmer.

MindStick Training
MindStick Training

Liked By

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