Getting Started with the OpenAI Codex CLI To begin working with the OpenAI Codex Command Line Interface (CLI), follow this step-by-step guide: First, create a virtual environment named openai_cli by running the command: conda create --name openai_cli Next, activate the virtual environment: conda activate openai_cli Then, install the Codex CLI using npm: npm install -g @openai/codex After installation, make your OpenAI API key available by exporting it as an environment variable: export OPENAI_API_KEY="Your OpenAI API Key" Finally, start Codex in full automatic mode with: codex --full-auto Once Codex is running, you will see its user interface in the terminal. To illustrate, let's say you want to create a user registration form. You can input a prompt like: Create a user registration form in Python with fields for username, email, password, and confirm password. Codex will generate the initial code. However, it might prompt you for more context to refine its output. For example, it could ask if you want error handling or specific validation rules. Providing these details will help Codex deliver more accurate and useful code. Tips for Success Be Specific: The more detailed your prompt, the better the output from Codex. Specify the programming language and any constraints such as optimization for speed or particular libraries to include. For instance: Generate a user registration form in Python using Flask, and optimize it for fast input validation. Check Rate Limits: API usage is subject to rate limits, which can be monitored through the OpenAI dashboard. This ensures you stay within your allocated quota and avoid any unexpected interruptions. Explore Options: Run the command codex --help to explore all available options and flags. This includes settings for output formats and model preferences, allowing you to tailor your experience. About the Author Cobus Greyling is the Chief Evangelist at Kore.ai, a platform dedicated to the advancement of AI and language technology. His passion lies in exploring the intersection of AI and language, from language models to agentic applications and development frameworks. He shares his insights and ideas on how these technologies are shaping the future. For further information and resources, refer to the official OpenAI Codex CLI documentation: OpenAI Codex CLI Getting Started The OpenAI Codex CLI is a lightweight AI coding assistant that runs in a terminal, enabling developers to write code more efficiently and accurately. By following these steps and tips, you can harness the power of Codex to enhance your coding workflow.