Codex CLI

Codex CLI

OpenAI
+
+

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About

Codex CLI is an open-source, lightweight coding agent that integrates directly into your terminal, designed to help developers write, edit, and understand code efficiently. By pairing with Codex CLI, developers can leverage the power of AI to streamline their workflow, get real-time code suggestions, and improve their coding accuracy, all from within their command line interface. It provides a seamless, accessible way to enhance coding productivity while staying in the environment developers are already comfortable with.

About

Nimbalyst is a free, local, visual workspace for building with Claude Code and Codex. Nimbalyst provides a session and task manager and visual editors for markdown, mockups, diagrams, drawings, csv, mcp, data-models, code, sessions, and tasks.  Nimbalyst enables builders (developers, product managers, designers, and others) working with agents to achieve: - Higher bandwidth: a visual workspace to collaborate with your agents on sessions, files, and tasks. - Richer context: live diffs, linked files, and integrated editors keep you and your agents on the same page - Faster workflows: your agent builds custom tools and visual interfaces for your use cases right inside the workspace where you work

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Supported
iPad Not Supported
Android Supported
Chromebook Not Supported

Audience

Codex CLI is ideal for developers and software engineers looking to enhance their coding efficiency, automate repetitive tasks, and improve code quality using AI-powered assistance directly within their command line environment

Audience

Builders working with Codex and Claude Code. Developers, Designers, Product Managers, Enterpreneurs

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Open source
Free Version Supported
Free Trial Not Supported

Pricing

$0/user/month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Pros & Cons from Real Users

Pros

  • 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.

Cons

  • 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.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Not Supported

Company Information

OpenAI
Founded: 2015
United States
openai.com

Company Information

Nimbalyst
Founded: 2025
United States
nimbalyst.com

Alternatives

Amp

Amp

Amp Code

Alternatives

VibeiDE

VibeiDE

Crowie s.r.o.
Claude Code

Claude Code

Anthropic
1DevTool

1DevTool

StoicSoft

Categories

Agentic AI Supported
AI Agents Supported
AI Code Generators Supported
AI Coding Agents Supported

Categories

AI IDEs Supported

Integrations

AI Gateway HQ Supported
Agent Teams Supported
AppControl Supported
Butterbase Supported
C# Supported
Depra AI Supported
DocuWriter.ai Supported
Experiential Supported
FavStash Supported
FeatQ Supported
GPT-5.2 Supported
GPT-5.2 Thinking Supported
HTML Supported
Hindsight Supported
Junction Supported
LevelFour Supported
Muse Wonder Supported
NotchPixel Supported
OpenCheese AI Supported
Web2MD Supported

Integrations

AI Gateway HQ Not Supported
Agent Teams Not Supported
AppControl Not Supported
Butterbase Not Supported
C# Not Supported
Depra AI Not Supported
DocuWriter.ai Not Supported
Experiential Not Supported
FavStash Not Supported
FeatQ Not Supported
GPT-5.2 Not Supported
GPT-5.2 Thinking Not Supported
HTML Not Supported
Hindsight Not Supported
Junction Not Supported
LevelFour Not Supported
Muse Wonder Not Supported
NotchPixel Not Supported
OpenCheese AI Not Supported
Web2MD Not Supported
Claim Codex CLI and update features and information
Claim Codex CLI and update features and information
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Claim Nimbalyst and update features and information