# Codex

> OpenAI's coding agent: CLI + autonomous cloud PRs

Source: https://aistack.sh/tool/codex
Category: Coding agents
Site: https://openai.com/codex
Status: active
Last verified by a human: 2026-05-05

Two surfaces from one product. Codex CLI runs in your terminal with file system access. Codex Cloud takes a ticket and opens the PR autonomously. Bundled with ChatGPT Plus and Pro; the cloud lane bills as a separate task budget.

## Pricing

As published on the tool page: Free · $20/mo ChatGPT Plus · $100/mo Pro 5x · $200/mo Pro 20x · $25/user/mo Business · API metered

## Alternatives

- Claude Code — https://aistack.sh/tool/claude-code
- Cursor — https://aistack.sh/tool/cursor
- GitHub Copilot — https://aistack.sh/tool/github-copilot
- Windsurf — https://aistack.sh/tool/windsurf

## Head-to-head comparisons

- [Antigravity vs Codex](https://aistack.sh/compare/antigravity-vs-codex) (markdown: https://aistack.sh/compare/antigravity-vs-codex/llms.txt)
- [Claude Code vs Codex](https://aistack.sh/compare/claude-code-vs-codex) (markdown: https://aistack.sh/compare/claude-code-vs-codex/llms.txt)
- [CodeRabbit vs Codex](https://aistack.sh/compare/coderabbit-vs-codex) (markdown: https://aistack.sh/compare/coderabbit-vs-codex/llms.txt)
- [Codex vs Cursor](https://aistack.sh/compare/codex-vs-cursor) (markdown: https://aistack.sh/compare/codex-vs-cursor/llms.txt)
- [Codex vs GitHub Copilot](https://aistack.sh/compare/codex-vs-github-copilot) (markdown: https://aistack.sh/compare/codex-vs-github-copilot/llms.txt)
- [Codex vs Windsurf](https://aistack.sh/compare/codex-vs-windsurf) (markdown: https://aistack.sh/compare/codex-vs-windsurf/llms.txt)

## Used in 1 tested stack

- [Codex (CLI + cloud)](https://aistack.sh/stack/ship-code-codex) — CLI for active work + Cloud for backlog PRs, $40/mo

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From aistack.sh. Last updated 2026-09-08.