Pricing Plans
Most Popular
ChatGPT Plus
$20/month
Includes Codex CLI access
- Full Codex CLI access
- GPT-5-Codex model
- Multi-modal input
- MCP support
ChatGPT Pro
$200/month
Unlimited access
- Unlimited Codex usage
- Priority access
- All Plus features
ChatGPT Enterprise
Free
Custom pricing
- Team management
- Enterprise security
- Custom deployment
About Codex CLI
Codex CLI is OpenAIs official coding agent that runs locally in your terminal. Built in Rust for speed and efficiency, it can read, modify, and execute code in your selected directory. Powered by GPT-5-Codex and GPT-5 models, it supports multi-modal input including screenshots and design specs, MCP integration for third-party tools, and built-in code review before commits. Included with ChatGPT Plus, Pro, Business, and Enterprise plans, making it accessible to existing OpenAI subscribers.
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Codex CLI FAQ
No, Codex CLI requires a ChatGPT subscription. It is included with ChatGPT Plus (20 dollars/month), Pro (200 dollars/month), Business, Edu, and Enterprise plans. There is no standalone free tier.
Both are official terminal coding agents from major AI companies. Codex CLI uses OpenAI GPT-5 models and requires a ChatGPT subscription. Claude Code uses Claude models and requires a Claude subscription. Codex CLI is built in Rust for speed, while Claude Code focuses on nuanced code understanding. Choose based on your existing subscription and model preference.
Codex CLI is powered by GPT-5-Codex (optimized for coding) and GPT-5. You can switch between models using the /model command and adjust reasoning levels for different tasks.
Yes, Codex CLI supports multi-modal input. You can attach screenshots or design specs and Codex will read them alongside your text prompt, making it useful for implementing designs or debugging visual issues.
Yes, the Codex CLI codebase is open source and available on GitHub. However, it requires OpenAI API access through a ChatGPT subscription to function.