Average Ratings 1 Rating

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ease
features
design
support

Average Ratings 0 Ratings

Total
ease
features
design
support

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Description

Codex CLI is a powerful open-source AI tool that runs in your command line interface (CLI), offering developers an intuitive way to automate coding tasks and improve code quality. By pairing Codex CLI with your terminal, developers gain access to AI-driven code generation, debugging, and editing capabilities. It enables users to write, modify, and understand their code more efficiently with real-time suggestions, all while working directly in the terminal without switching between tools. Codex CLI supports a seamless coding experience, empowering developers to focus more on building and less on managing tedious coding processes.

Description

The GPT-5.1-Codex-Max represents the most advanced version within the GPT-5.1-Codex lineup, specifically tailored for software development and complex coding tasks. It enhances the foundational GPT-5.1 framework by emphasizing extended objectives like comprehensive project creation, significant refactoring efforts, and independent management of bugs and testing processes. This model incorporates adaptive reasoning capabilities, allowing it to allocate computational resources more efficiently based on the complexity of the tasks at hand, ultimately enhancing both performance and the quality of its outputs. Furthermore, it facilitates the use of various tools, including integrated development environments, version control systems, and continuous integration/continuous deployment (CI/CD) pipelines, while providing superior precision in areas such as code reviews, debugging, and autonomous operations compared to more general models. In addition to Max, other lighter variants like Codex-Mini cater to budget-conscious or scalable application scenarios. The entire GPT-5.1-Codex suite is accessible through developer previews and integrations, such as those offered by GitHub Copilot, making it a versatile choice for developers. This extensive range of options ensures that users can select a model that best fits their specific needs and project requirements.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

C# Yes 
C++ Yes 
ChatGPT Pro Yes 
GPT-5.2 Instant Yes 
GPT-5.2 Pro Yes 
GPT-5.3 Instant Yes 
GPT-5.4 Yes 
GPT-5.4 mini Yes 
GPT-5.5 Yes 
GPT-5.6 Luna Yes 
GPT-5.6 Sol Ultrafast Yes 
GPT-5.6 Terra Yes 
GPT-6 Astra Yes 
GPT-6 Luna Yes 
GPT-6 Sol Yes 
GPT‑5.4 Thinking Yes 
GitHub Yes 
Go Yes 
JavaScript Yes 
PHP Yes 

Integrations

C# Yes 
C++ Yes 
ChatGPT Pro Yes 
GPT-5.2 Instant Yes 
GPT-5.2 Pro Yes 
GPT-5.3 Instant Yes 
GPT-5.4 Yes 
GPT-5.4 mini Yes 
GPT-5.5 Yes 
GPT-5.6 Luna Yes 
GPT-5.6 Sol Ultrafast Yes 
GPT-5.6 Terra Yes 
GPT-6 Astra Yes 
GPT-6 Luna Yes 
GPT-6 Sol Yes 
GPT‑5.4 Thinking Yes 
GitHub Yes 
Go Yes 
JavaScript Yes 
PHP Yes 

Pricing Details

Free
Open source
Free Trial No 
Free Version Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version Yes 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

OpenAI

Founded

2015

Country

United States

Website

openai.com

Vendor Details

Company Name

OpenAI

Founded

2015

Country

United States

Website

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

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