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What is oh-my-codex (OMX)?

oh-my-codex, commonly called OMX, is an open-source workflow layer that extends OpenAI Codex CLI with stronger prompts, structured development processes, runtime tooling, and agent coordination features. The project is designed for users who already work with Codex but want a more organized and durable way to manage software development tasks. OMX keeps Codex responsible for the actual agent work while adding reusable roles, skills, hooks, HUDs, team workflows, and persistent state. Its core workflow encourages users to clarify vague requests with $deep-interview, approve plans with $ralplan, and convert approved work into durable execution goals with $ultragoal. The framework also includes support for $team when coordinated parallel execution is needed and $ralph for persistent single-owner completion loops. OMX stores plans, logs, memory, runtime state, and goal artifacts inside .omx, making it easier to resume or inspect work across sessions. It supports safer development practices through named git worktrees, smoke tests, setup validation, and runtime readiness checks. The project is primarily tuned for macOS and Linux users running Codex CLI, with tmux used for the recommended durable team runtime. It also includes plugin-related support, Codex hook integration, wiki operations, repository exploration helpers, and sparkshell inspection tools. Developers can use OMX to manage complex tasks, improve context retention, organize planning, and reduce the friction of long-running Codex sessions. oh-my-codex helps technical users transform Codex into a more structured, extensible, and workflow-aware coding environment.

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

Codex CLI
OpenAI Codex
C
Elixir
GPT-5.1
GPT-5.1 Pro
GPT-5.4
GPT-5.4 nano
GPT-5.5
Go
JavaScript
JetBrains Junie
Kotlin
Model Context Protocol (MCP)
PHP
Python
SQL
TypeScript
Visual Studio Code
Windsurf Editor

Integrations Supported

Codex CLI
OpenAI Codex
C
Elixir
GPT-5.1
GPT-5.1 Pro
GPT-5.4
GPT-5.4 nano
GPT-5.5
Go
JavaScript
JetBrains Junie
Kotlin
Model Context Protocol (MCP)
PHP
Python
SQL
TypeScript
Visual Studio Code
Windsurf Editor

API Availability

Has API

API Availability

Has API

Pricing Information

Free
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

oh-my-codex (OMX)

Company Website

oh-my-codex.dev/

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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