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What is OpenAI Codex?

OpenAI Codex is a next-generation AI tool that acts as a software engineering agent, enabling developers to automate a wide range of tasks and improve their workflow efficiency. With Codex, developers can delegate multiple tasks simultaneously, including feature writing, codebase inquiries, testing, and proposing pull requests for review. Each task is handled in its own secure cloud sandbox, preloaded with the relevant repository to ensure safe and accurate execution. Codex runs in parallel, making it easier for developers to manage multiple tasks without getting bogged down in repetitive work. Available to ChatGPT Pro, Enterprise, and Team users, with additional access for Plus and Edu users coming soon, Codex accelerates project timelines and helps teams reduce manual effort. By integrating Codex into their development process, teams can increase productivity, improve code quality, and reduce time spent on mundane tasks, ultimately speeding up the delivery of features and products.

What is GPT-5.1-Codex-Max?

The GPT-5.1-Codex-Max stands as the pinnacle of the GPT-5.1-Codex series, meticulously designed to excel in software development and intricate coding challenges. It builds upon the core GPT-5.1 architecture by prioritizing broader goals such as the complete crafting of projects, extensive code refactoring, and the autonomous handling of bugs and testing workflows. With its innovative adaptive reasoning capabilities, this model can more effectively manage computational resources, tailoring its performance to the complexity of the tasks it encounters, which ultimately improves the quality of the results produced. Additionally, it supports a wide array of tools, including integrated development environments, version control platforms, and CI/CD pipelines, thereby offering remarkable accuracy in code reviews, debugging, and autonomous execution when compared to more general models. Beyond Max, there are lighter alternatives like Codex-Mini that are designed for those seeking cost-effective or scalable solutions. The entire suite of GPT-5.1-Codex models is readily available through developer previews and integrations, such as those provided by GitHub Copilot, making it a flexible option for developers. This extensive variety of choices ensures that users can select a model that aligns perfectly with their unique needs and project specifications, promoting efficiency and innovation in software development. The adaptability and comprehensive features of this suite position it as a crucial asset for modern developers navigating the complexities of coding.

Media

Media

Integrations Supported

C
C#
C++
ChatGPT
Cursor
GPT-5.1
GPT-5.1 Pro
GPT-5.2
GPT-5.2 Pro
GPT-5.2 Thinking
GitHub
Go
HTML
Java
JavaScript
Kotlin
Python
SQL
Visual Studio Code
Windsurf Editor

Integrations Supported

C
C#
C++
ChatGPT
Cursor
GPT-5.1
GPT-5.1 Pro
GPT-5.2
GPT-5.2 Pro
GPT-5.2 Thinking
GitHub
Go
HTML
Java
JavaScript
Kotlin
Python
SQL
Visual Studio Code
Windsurf Editor

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com/index/gpt-5-1-codex-max/

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