OpenAI Codex Vs. GitHub Copilot: A Comprehensive Comparison

Thanks to GPT, OpenAI has gained enormous traction lately. If you are in the tech world, you may be no stranger to OpenAI and GitHub. While both OpenAI Codex and GitHub Copilot are powerful AI-powered coding assistants, there are some key differences that developers should be aware of before choosing one over the other.

Let’s dive in and find out which one reigns supreme!

openai codex

Difference Between OpenAI Codex & GitHub Copilot

Before we delve into the detailed comparison, one might ask, “Why is it essential to understand the differences between OpenAI Codex and GitHub Copilot?” As the tech world evolves, choosing the right tool can significantly impact a developer’s efficiency and the quality of the code produced. Knowing the strengths and limitations of each tool can guide developers in making informed decisions tailored to their specific needs.

Let us now see the differences between these two platforms and learn about them: CodexGitHub Copilot
I.OpenAI Codex is a free AI-powered coding assistant that offers a variety of features that can make your life easier when working with the programming language Python.The integrations it supports are GitHub, Go, VS Code, IntelliJ IDEA, Ruby, Java, JavaScript, Python, Neovim, and TypeScript.
II.It includes an online compiler that can help you understand how your code works and an online interpreter that allows you to experiment with different coding styles and syntax without downloading and installing any software or installing any software on your computer.It includes code generators that can help you create code that adheres to certain coding standards and generates code to your preferred style and syntax.
III.It can automatically detect syntax errors in your code without you looking at it.It is integrated directly into the GitHub code editor and can even suggest entire functions or classes based on the context of your code.
IV.OpenAI Codex can comprehend, finish, translate, and produce code based on text instructions in natural language. You can code in many languages on this. It supports a wider range of programming languages than OpenAI Codex, including C++, Java, JavaScript, Python, Ruby, and TypeScript.
V.It supports SaaS-based platforms.It supports most Operating Systems: Windows, Mac, and Linux.
VI.The integrations it supports are: OpenAI, Azure, OpenAI Service, GPT-3, and GPT-4.The integrations it supports are OpenAI, Azure, OpenAI Service, GPT-3, and GPT-4.
VII.It offers API.It does not offer API.


I. How much does GitHub Copilot cost?

There are two subscription options for GitHub Copilot: monthly and yearly. Choosing a monthly billing cycle will result in a $10 monthly fee. If you opt for an annual billing cycle, you will be charged $100 annually.

II. Is GitHub Copilot using OpenAI?

Yes, GitHub Copilot uses OpenAI. Also, GitHub Copilot, a tool many developers and engineers use, is built on Codex.

III. Is Codex better than GPT-3?

The memory space for GPT-3 is only 4 KB, while the memory space for Codex is 14 KB, which is three times as big as GPT-3’s. This enables Codex to deliver more precise code completions and comprehend user intents better. 


So, this is how the two platforms differ from each other and can also coexist. OpenAI created OpenAI Codex, which is an artificial intelligence model. It analyses natural language and produces code as a result. It drives GitHub Copilot, a programming autocomplete tool created for specific IDEs.

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