OpenAI Codex
OpenAI's coding agent for the terminal, IDE and cloud
OpenAI Codex is an AI coding agent that assists across terminal, IDE, and cloud for planning, building, refactoring, reviewing, and releasing code.
- for
- Developers and engineering teams needing AI-assisted coding and code review.
- pricing
- freemium
Key features
- Parallel agent execution — Runs multiple coding agents simultaneously, using tools to verify work until requirements are met.
- Reusable cloud environments — Keeps tasks running in the cloud with per-repo environments that persist across devices.
- Automated PR reviews — Scans pull requests, surfaces findings, and answers questions to accelerate code review.
- Plugin ecosystem — Connects to external tools and adds specialized capabilities via plugins.
- Cross-platform access — Available in ChatGPT, IDE extensions, CLI, and web, all linked to a single account.
- Secure shared workspaces — Business plan offers admin controls and shared repositories for team collaboration.
Use cases
- Automatically review pull requests and surface bugs before merging
- Refactor large codebases and generate tests with minimal manual effort
- Run long-running coding tasks in the cloud and resume from any device
- Integrate AI coding assistance directly into IDEs, terminals, or CI pipelines
OpenAI Codex pricing
- Plus$20/monthFocused coding sessions each week · Expanded Codex usage · Access to plugins
- Pro$100/monthHigher usage limits · Full-day work across projects · Unlimited subject to guardrails
- Business$20/user / monthSecure shared workspace · Admin controls · Flexible team pricing
OpenAI Codex vs alternatives
 OpenAI Codex |  Cursor |  Claude Code |  GitHub Copilot |  Aider | |
|---|---|---|---|---|---|
| Best for | Multi-agent coding workflows | AI code editor | Anthropic terminal coding agent | In-editor AI pair programmer | Open-source terminal coding |
| Pricing | Freemium | Subscription | Subscription | Subscription | Free |
| DevHunt upvotes | 0 | 0 | 0 | 0 | 0 |
| Launched | — | — | — | — | — |
- OpenAI Codex vs Cursor: Cursor is an AI-powered code editor, whereas Codex is an agent that works across IDEs, terminal, and cloud.
- OpenAI Codex vs Claude Code: Claude Code focuses on terminal and IDE agents similar to Codex but is from Anthropic.
- OpenAI Codex vs GitHub Copilot: GitHub Copilot provides inline suggestions inside editors, while Codex offers multi-agent workflows and cloud execution.
- OpenAI Codex vs Aider: Aider is an open-source terminal-based AI pair programmer, lacking the cloud and multi-agent features of Codex.
OpenAI Codex FAQ
How is Codex accessed?+
Codex is included in your ChatGPT plan and can be used via the ChatGPT app, web, IDE extensions, or the CLI.
What does the Business plan provide?+
It offers a secure shared workspace with admin controls and flexible pricing for teams using Codex across repositories.
Can Codex run tasks when I’m offline?+
Yes, Codex keeps tasks running in reusable cloud environments, allowing you to resume from another device.
Are there usage limits?+
All plans have usage limits; Plus and Pro provide higher limits, and Business offers flexible limits per seat.
What integrations are available?+
Codex supports plugins, IDE extensions, the CLI, and can connect to your repositories and other apps.
Summarized by DevHunt from openai.com · Oct 1, 2026. Details may change; check the official site.
About this listing
DevHunt lists OpenAI Codex because developers expect to find it next to the tools in its category. It did not launch on DevHunt. Work on OpenAI Codex? Message us to claim this listing.
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