Codex CLI

• GB Name : Codex CLI
• Version : Last
• OS : Anything
• Type : AI Dev Tool
• GB Cost : $300k/m + 1$ Fee
• GB Joined : 1/5 Peoples
• GB Status : Going
• Homepage : JV

What is Codex CLI?

Codex CLI is a device-based programming assistant that runs in OpenAI's terminal, allowing developers to read, write, organize, and execute code directly from the command line. Unlike browser-based AI, the Codex CLI operates on your computer and in a project directory of your choosing, allowing it to process files, dependencies, and the surrounding real-world environment.

The Codex CLI is built using Rust to deliver the speed, security, and performance of an open-source project optimized for a developer workflow with low latency. This allows it to analyze existing codebases, make targeted modifications to files, commit with detailed messages, and more. This makes it particularly convenient for engineers who prefer working with keyboard-based workflows and local development setups.

The Codex CLI offers ChatGPT Plus, Pro, Business, Edu, and Enterprise packages, allowing individual developers, teams, and organizations to access AI-powered programming without having to outsource work. Running locally, it gives developers better control over their code and harnesses the power of AI to help you write better software.

Key features of Codex CLI

• Interactive Terminal Experience: The Codex CLI is an interactive terminal user interface (TUI) that you can launch by running a Codex command. This allows you to have a real, live conversation without leaving the terminal, so you can iterate through your source code extremely quickly and ask questions about it rapidly without interrupting the workflow.

• Model and Inference Control: With the Codex, you can choose which AI model will control your session. You can switch between GPT-5-Codex and GPT-5 using the /model command, or adjust the level of inference if you want a faster response than a more carefully considered one. This flexibility allows you to trade off speed, cost, and intelligence needed for the task at hand.

• Image import support: Send screenshots, UI sketches, design specifications along with your prompts! Codex analyzes these images along with the text you enter, simplifying the transition from visual design to runnable code or debugging UI issues and helping to guide terminology for developers working with the design department.

• Local code review: The Codex CLI can run remote code reviews with a standalone Codex agent before committing, merging, and pushing changes. This helps detect errors, logic issues, performance problems, or style differences early on, creating an automated peer review process anywhere in your local workflow.

• Integrated web search: If it's up-to-date data or external sources, the Codex can crawl the web and return current results that may be relevant to your work. This is especially useful for browsing library updates, API changes, best practices, or just the latest documentation without having to leave your terminal.

• Codex Cloud tasks: On your terminal, take steps to run the Codex Cloud. You can select an environment, run the Codex remotely, and then apply the resulting differences back locally. This allows you to delegate more complex tasks while still managing the rest of the workflow in one place.

• Scripting Automation: Using the `exec` command, you can program scripts for the Codex to automate routine processes. This allows you to transform daily development activities, such as refactoring, testing, or setup tasks, into reusable, AI-integrated scripts, saving time and minimizing repetitive work.

• Model Context Protocol (MCP) Integration: The Codex is built with support for the Model Context Protocol (MCP). You can integrate third-party tools, services, and more contexts into your workflow. Because the Codex is built on a foundation that supports standard coding, it allows for deeper integration than other tools.

• Flexible Approval Modes: Before the Codex edits a file or runs a command, you can choose the level of human oversight that suits you. This sounds like a great idea, ensuring you're always in control, whether you're doing entirely manual verification, partially automating, or letting other people/tools handle assigned tasks.

How to use Codex CLI

Step 1: Install Codex CLI

The Codex CLI is installed globally using npm, making setup very easy. Assuming you're already using Node.js and have npm installed, the following command will handle everything for you: `npm i -g @openai/codex`. This command will install the Codex CLI on your computer, where you can access it from any terminal window.

Step 2: Run Codex

After installation, open a terminal window and navigate to your project directory. Once launched, Codex can scan your repositories, read and write files, execute commands directly in the source code to review other people's code, or simply support development. When you launch Codex for the first time, it will ask you to log in. You can log in using your ChatGPT account or API key.

Step 3: Upgrade the Codex CLI

The Codex CLI is constantly being developed and released with new features and improvements regularly. If you want to ensure you're using the latest version, you can update at any time using the command: `npm i -g @openai/codex@latest`. Additionally, reading the changelog before upgrading will help you see the new features or changes in each version.

Why you should use Codex CLI?

• Fast installation and startup: The Codex CLI installs in just seconds and starts instantly. There are no complicated setup or configuration processes, and no long wait times for the IDE to start; therefore, it's great for developers who want to work efficiently without interruption.

• Low dependencies: The Codex CLI has only a few dependencies. This keeps your system clean, minimizing compatibility issues and conflicts with other development tools already installed on your system.

• Efficient resource usage: The Codex CLI is a Rust application, making it fast and efficient. It runs well on your local computer, consuming a reasonable amount of CPU and memory even in more complex use cases such as code review or editing multiple files.

• Works directly on your computer: Because the Codex is running a local server in your terminal, it can read and write data back to your chosen directory. This gives you tighter control than browser-based tools and keeps sensitive code away from the server.

• Ideal for automation and CI/CD: The Codex CLI is conveniently used in automation environments, such as CI/CD conversion chains. With its small size and programmability, the Codex CLI is particularly well-suited for repetitive tasks such as syntax checking, code refactoring, or code testing/validation.

• Minimize context switching: By operating entirely within the terminal, the Codex eliminates the frustration of switching between editors, browsers, and external AI tools. This allows for better focus, faster iteration, and a simpler development process.

• Suitable for a wide range of users: The Codex CLI is a perfect fit for you, whether you're a freelancer or have a large engineering team. It's sophisticated enough for complex workflows and approval requirements, but simple enough for anyone to use!

The Upgrade/OTO details

Plus Plan – $20/month

• Best for developers running focused coding sessions each week

• Access Codex on web, CLI, IDE extension, and iOS

• Cloud-based features like automatic code review and Slack integration

• Use the latest models including GPT-5.2-Codex

• GPT-5.1-Codex-Mini with up to 4× higher local usage limits

• Extend usage anytime with ChatGPT credits

• Fast, lightweight AI assistance for local coding workflows

• Includes all standard ChatGPT Plus features

Pro Plan – $200/month

• Built for full-time developers who rely on Codex daily

• Includes everything from the Plus plan

• Priority request processing for faster responses

• 6× higher usage limits for local and cloud tasks

• 10× more cloud-based code reviews

• Ideal for heavy repositories and frequent automation

• Reliable performance under sustained workloads

• Includes all premium ChatGPT Pro features

Business Plan – $30/user/month

• Designed for startups and growing teams

• Includes everything from the Plus plan

• Larger virtual machines for faster cloud task execution

• Secure, dedicated team workspace

• Admin controls with SAML SSO and MFA

• No training on your business data by default

• Flexible usage expansion with ChatGPT credits

• Includes all ChatGPT Business features

Enterprise & Edu Plans – Custom Pricing

• Enterprise-grade Codex deployment at scale

• Includes everything from the Business plan

• Priority request processing across the organization

• Enterprise security with SCIM, EKM, RBAC, and domain verification

• Detailed audit logs and usage monitoring via Compliance API

• Advanced data retention and residency controls

• Organization-wide analytics and governance

• Full access to Enterprise or Education ChatGPT features

Advantages

• Run locally for maximum control: The Codex CLI runs on your local computer, so it can read, edit, and run your source code from your chosen directory. This gives you full visibility and control over changes, which is crucial for sensitive or private source code.

• Fast, lightweight, and efficient: The Codex CLI has fast load times and high performance while using very few resources. It appears responsive even on very large repositories and doesn't slow down your system.

• Tight integration with the Terminal: The Codex is built for and runs in your terminal, so it easily integrates into your existing developer workflow. Write code, review changes, run commands, and automate as you develop.

• Advanced Workflow Support: Features such as approval mode, review by another agent, scripting support, and Codex Cloud tasks mean it can be used for more than just simple programming support. It can scale for real-world development and team workflows.

• Flexible Model Control: You can switch between models (e.g., GPT-5-Codex and GPT-5) and inference levels to suit the task at hand; this allows for more precise control over speed, depth, and output quality.

• Automation-Friendly: The Codex CLI is excellent for CI/CD pipelines and scripted use cases. It has few dependencies and is easily integrated into automated scripts.

Disadvantages

• Not everyone enjoys the terminal-prioritized experience: The Codex CLI is designed for developers familiar with the terminal. If you're the type of user who prefers intuitive IDE extensions or working directly from the browser engine, it might not be very intuitive at first.

• Requires a paid ChatGPT package: The Codex CLI is available on ChatGPT Plus, Pro, Business, Edu, or Enterprise packages. This can be a drawback for developers who really want a completely free end-to-end solution.

• Learning curve for advanced features: It also takes time to get used to powerful features like scripting, MCP integration, and approval mode. New users may only start using a small part of the Codex CLI.

Who is it for?

• Terminal developers: The Codex CLI is perfect for engineers already familiar with the command line and looking to add an AI assistant without disrupting their workflow or opening another tool.

• Backend, Systems, and DevOps Engineers: Local execution capabilities, scripting capabilities, and an automation-prioritizing attitude make it a great fit for backend development, infrastructure scripting, CI/CD paths, etc.

• Developers Working with Sensitive Source Code: For teams or individuals working with proprietary or private repositories, the Codex can even run locally, with explicit consent required before running code changes/commands.

• Productivity Developers: For individual developers who want faster iteration, code reviews within the IDE, and fewer context switches, you'll appreciate how the Codex CLI simplifies your programming workflow.

• Technical Teams Using Paid ChatGPT Packages: Companies already using the ChatGPT Business, Enterprise, or Edu packages can quickly add the Codex CLI to their existing AI toolkit.

• For advanced users and automation enthusiasts: If you enjoy scripting, customizing workflows, and connecting third-party tools via the Model Context Protocol, then this is something you shouldn't miss.

FAQs

Does Codex CLI run locally or in the cloud?

The CLI itself runs locally on your computer. Some features, including Codex Cloud tasks and web searches, use cloud services, but all actions take place on your terminal with approval mode.

Is the Codex CLI free?

The Codex CLI has ChatGPT Plus, Pro, Business, Edu, and Enterprise packages. How to download Infinite Painter for free on PC: This is a paid application and cannot be downloaded as a free standalone tool.

Can the Codex CLI edit my files?

Yes, but only with your permission. Approval mode lets you specify whether the Codex can suggest changes, edits, or execute commands for you.

How does the Codex CLI work with large codebases?

Yes. The Codex CLI is fast and can handle very large repositories, making it perfect for professional projects or enterprise work.

Can the Codex CLI be used in CI/CD pipelines?

Absolutely. Thanks to its lightweight design, script support, and terminal-based interface, it's well-suited for automation environments like CI/CD pipelines.

Is the Codex CLI safe to use for my private or proprietary source code?

Yes. The Codex runs locally and adheres to your blocking rules, giving you control over what it's allowed to read, write, or execute.

Conclusion

If you're tired of switching between tools and are looking for AI support that can seamlessly integrate into your actual development workflow, the Codex CLI is a powerful upgrade. Fast, local, efficient, with a focus on developers who want control, not error-causing shortcuts. When you purchase the Codex CLI through our website, you get not just the tool; you get clarity and knowledge-based guidance to help you use it correctly and confidently. If you're interested in productivity, efficient workflows, and command-line interface-first development tools, then the Codex CLI is definitely a tool worth using, and it's the perfect place to start.

* This article was originally published here