What is Codex CLI?

Codex CLI is an open-source local coding agent designed to work seamlessly with your command line interface. It leverages OpenAI’s powerful Codex models to assist developers with writing, editing, and understanding code faster and more accurately. By integrating Codex CLI into their workflows, developers can automate repetitive tasks, get real-time code suggestions, and troubleshoot coding issues directly from their terminal. This tool provides a hands-on approach to coding automation, empowering developers to increase their productivity without needing to leave their preferred environment. With Codex CLI, developers can streamline their coding process, debug code with ease, and accelerate development, making it an invaluable tool for enhancing efficiency and code quality.

Pricing

Price Starts At:
Free
Price Overview:
Open source
Free Version:
Free Version available.

Screenshots and Video

Codex CLI Screenshot 1

Company Facts

Company Name:
OpenAI
Date Founded:
2015
Company Location:
United States
Company Website:
openai.com

Product Details

Deployment
Windows
Mac
Linux
Training Options
Documentation Hub

Product Details

Target Company Sizes
Individual
1-10
11-50
51-200
201-500
501-1000
1001-5000
5001-10000
10001+
Target Organization Types
Mid Size Business
Small Business
Enterprise
Freelance
Nonprofit
Government
Startup
Supported Languages
English

Codex CLI Categories and Features

More Codex CLI Categories

Codex CLI Customer Reviews

Write a Review
  • Reviewer Name: A Verified Reviewer
    Position: CTO
    Has used product for: 6-12 Months
    Uses the product: Daily
    Org Size (# of Employees): 26 - 99
    Feature Set
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    Codex CLI review

    Date: Aug 02 2026
    Summary

    Codex CLI is a strong tool for developers who want a local, terminal-native AI coding agent backed by OpenAI. It is not something I would run blindly, but as a supervised coding partner for repo exploration, fixes, refactors, and day-to-day engineering work, it is very compelling.

    Positive

    Codex CLI is great because it brings OpenAI’s coding agent directly into the terminal. I like that it fits into a normal developer workflow instead of forcing everything through a separate web app or IDE extension.

    It can read, modify, and work with code locally, which makes it useful for debugging, refactoring, exploring a repo, and handling coding tasks without leaving the command line. That is especially nice for developers who already live in terminal-first workflows.

    I also like that it is part of the broader Codex ecosystem. If I want the same general agent experience in an IDE, desktop app, or ChatGPT’s cloud-based Codex, there are options for that too.

    Negative

    I would still supervise it closely. Any AI coding agent that can touch local files and interact with a dev environment needs review, tests, and clear boundaries.

    It can also run into the usual coding-agent issues: setup problems, API/config errors, terminal quirks, command failures, and tool-use mistakes. A recent empirical study of Claude Code, Codex, and Gemini CLI found that many reported bugs in these tools involve functionality, integrations, configuration, terminal behavior, and command execution.

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