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Tracked since2026
0 reviews tracked·3 press mentionsThe Bottom Line
Entry price
Paid plans only
Biggest pro
Official OpenAI product
Biggest con
Requires ChatGPT subscription
TL;DR - Codex CLI
- OpenAI Codex in the terminal
- Natural language to code commands
- AI-powered shell assistance
Pricing: Paid only
Best for: Enterprises & pros
What is 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.
Available on: Windows, macOS, Linux
Pros & Cons
Pros
- Official OpenAI product
- Fast Rust implementation
- Multi-modal input support
- Integrated code review
- Included with ChatGPT Plus
- Active development by OpenAI
- MCP extensibility
Cons
- Requires ChatGPT subscription
- No free tier
- OpenAI ecosystem lock-in
- Newer than competitors
- Less community content
Preview
Key Features
Built in Rust for performanceGPT-5-Codex and GPT-5 modelsLocal code executionMulti-modal input (screenshots, designs)MCP integration for extensionsBuilt-in code review agentDirectory-scoped executionModel switching via /model commandReasoning level adjustmentOpen source codebase
Pricing Plans
Open Source
Free
- Full source code access
- Apache License 2.0 license
- Community support
- Self-hosted
Reviews
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Codex CLI FAQ
Is Codex CLI free?
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.
How does Codex CLI compare to Claude Code?
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.
What models does Codex CLI use?
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.
Can Codex CLI read images?
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.
Is Codex CLI open source?
Yes, the Codex CLI codebase is open source and available on GitHub. However, it requires OpenAI API access through a ChatGPT subscription to function.
Source: github.com