OpenAI's coding agent that builds features, refactors and opens PRs from ChatGPT, an IDE extension or the Codex CLI. If it is not working for you, here are 8 apps that do the same job, closest match first.
Built from official pricing pages and app store listings, prices checked 2026-11-01. Not paid to be here.| App | Price | Platforms | Pick it if |
|---|---|---|---|
| OpenAI Codex (the app you have) | Included with ChatGPT plans: limited on Free and Go | Web, Mac, Windows, Linux | - |
| Claude Code | Included in Claude Pro, Max, Ultra, Team Standard and Premium | Everywhere | you need it on Android and iPhone |
| Cursor | Free $0/month | Mac, Windows, Linux, Web, iPhone | you need it on iPhone |
| Windsurf (Devin Desktop) | Free $0 | Apple | you want a close match |
| GitHub Copilot | Free $0 | Mac, Windows, Linux, Web | you are a student |
| Replit | Free Mode | Web, iPhone | you need it on iPhone |
| Warp | Free $0/month | Mac, Linux, Windows | you need it on every device |
| Zed | Personal $0 forever | Mac, Linux, Windows | you want open source |
| Visual Studio Code | Free and open source | Mac, Windows, Linux, Web | you want it free |
Anthropic's agentic coding tool that reads your codebase, edits files and runs commands from the terminal, IDE, desktop, web or phone.
Pick it if you need it on Android and iPhone.
AI coding agent and editor from Anysphere that builds, tests and reviews code, with cloud agents, a CLI and a mobile app.
Pick it if you need it on iPhone.
Cognition's AI code editor, now renamed Devin Desktop, for running local and cloud coding agents with Tab autocomplete.
GitHub's AI pair programmer and coding agent with completions, chat and agent mode in VS Code, JetBrains, GitHub and more.
Pick it if you are a student and you need it on every device.
Browser-based AI app builder: its Agent writes and deploys apps from plain-language prompts, with hosting, database and auth.
Pick it if you need it on iPhone, you are a student and you are just starting out.
Modern terminal with built-in coding agents, plus Warp Factories for running fleets of cloud agents.
Pick it if you need it on every device.
Fast open-source code editor written in Rust, with parallel AI agents, edit prediction, real-time collaboration and Vim mode.
Pick it if you want open source and you need it on every device.
Microsoft's free, open-source code editor with AI agents, a huge extension marketplace, built-in Git, terminal and debugger.
Pick it if you want it free, you want open source and you need it on every device.
We matched these apps to OpenAI Codex by what they are for, who they suit and where they run, using our research on each app's official website and app store listing. We have not tested them hands-on for this page. Check the price on each app's own site before you buy.