Codex CLI

Codex CLI

OpenAI
Devin

Devin

Cognition AI
+
+

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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

Devin is an AI-driven software development assistant designed to collaborate with engineering teams to automate and accelerate coding tasks. It helps with tasks like setting up repositories, writing code, debugging, and performing migrations, all while working autonomously or alongside human developers. Devin is capable of learning from examples, making it more efficient over time. Its use has led to significant time and cost savings in large-scale projects, as seen in its deployment at Nubank, where it delivered 8-12x faster migrations and reduced costs by over 20x. Devin is particularly useful in refactoring and automating repetitive engineering tasks.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

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

Software development teams and engineers looking for an AI-powered assistant to automate coding tasks, improve project efficiency, and reduce costs

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Open source
Free Version
Free Trial

Pricing

$20/month
Pro: $20/month
Max: $200/month
Free Version
Free Trial

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 5.0 / 5
ease 5.0 / 5
features 4.0 / 5
design 4.0 / 5
support 4.0 / 5

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.

Pros & Cons from Real Users

Pros

  • I’ve found Devin to be an incredible tool for streamlining my coding process. It delivers quick and accurate code suggestions, which have really helped me reduce development time. Whether I’m tackling complex algorithms or debugging, Devin’s responses are always precise and helpful. The integration into my coding environments has been seamless, and it consistently understands the context of the project, even with minimal input.

Cons

  • While Devin is great for most coding tasks, I’ve noticed it struggles a bit with more abstract problems that require creative or unconventional solutions. Its suggestions tend to be based on patterns, which sometimes miss the mark when working on unique or highly specialized projects. Additionally, it occasionally over-explains simple solutions, making the responses longer than necessary.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

OpenAI
Founded: 2015
United States
openai.com

Company Information

Cognition AI
Founded: 2023
United States
devin.ai/

Alternatives

Amp

Amp

Amp Code

Alternatives

Amp

Amp

Amp Code
Devin Desktop

Devin Desktop

Cognition
Claude Code

Claude Code

Anthropic
Claude Code

Claude Code

Anthropic
Goose

Goose

Block

Categories

Categories

Integrations

C
C#
C++
GPT-5.1
GPT-5.2 Instant
GPT-5.3 Instant
GPT-5.4 Pro
GPT-5.4 mini
GPT-5.4 nano
GPT-5.5
GPT-5.6 Luna
GitHub
Go
HTML
JavaScript
Kotlin
PHP
Python
React
Subspace

Integrations

C
C#
C++
GPT-5.1
GPT-5.2 Instant
GPT-5.3 Instant
GPT-5.4 Pro
GPT-5.4 mini
GPT-5.4 nano
GPT-5.5
GPT-5.6 Luna
GitHub
Go
HTML
JavaScript
Kotlin
PHP
Python
React
Subspace
Claim Codex CLI and update features and information
Claim Codex CLI and update features and information
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