- Developers & Engineers: Write code faster by turning natural language prompts into working scripts and functions.
- Beginner Programmers: Learn to code by asking Codex to generate examples and explain syntax.
- Product Designers & PMs: Prototype tools and workflows using natural language instructions.
- Educators & Students: Use Codex to understand coding concepts and generate learning examples.
- Automation Enthusiasts: Build simple automations and scripts without needing deep programming experience.
How to Use OpenAI Codex?
- Access Through API: Use the Codex model via OpenAI’s API platform.
- Integrate With Tools: Leverage Codex in applications like GitHub Copilot or custom tools using OpenAI’s API.
- Provide Natural Language Prompts: Input simple text descriptions of what you want the code to do.
- Receive Code Suggestions: Codex responds with accurate and relevant code snippets based on the prompt.
- Refine & Customize: Adjust your prompt or modify the generated code to suit your project.
- Natural Language to Code: Converts plain English instructions into code in real time.
- Multilingual Coding Support: Understands and writes code in over a dozen languages.
- Trained on Public Code: Built on billions of lines of public source code, providing strong contextual understanding.
- Powers GitHub Copilot: Codex is the engine behind Copilot, used by millions of developers.
- API Access: Offers flexible API integration for building developer tools, assistants, and educational platforms.
- Code Explanation: Can describe and explain code to support learning and debugging.
- Intuitive Natural Language Coding: Write functional code using plain English instructions.
- Wide Language Coverage: Supports Python, JavaScript, TypeScript, Ruby, and more.
- Excellent for Learning: Ideal for students and beginners exploring coding concepts.
- API Integration: Flexible for embedding into custom apps, tools, or platforms.
- May Generate Insecure Code: Suggestions may include insecure or deprecated practices.
- Requires Clear Prompts: Accuracy depends on how well the prompt is framed.
- Limited Access: Full Codex access requires API use and is subject to usage limits and pricing.
Free Trial
$ 0.00
Codex included at no extra cost as a research preview
Access to the Codex AI agent in sandboxed tasks
Run code generation, bug fixes, and test automation
Immediate setup via ChatGPT—no separate sign-up
Paid Plan (ChatGPT Pro)
$ 200.00
Full access to Codex tasks and cloud sandboxes
Access to GPT‑4.5 research preview, advanced reasoning models (o3, o4‑mini)
Unlimited reasoning model usage and deep research agent
Slack-like coding agent workflows via ChatGPT
No additional charge beyond ChatGPT Pro subscription
Team Plan
$ 30.00
Shared access to Codex in a secure team workspace
Admin controls, SAML SSO, and MFA
Enhanced privacy and data governance
Connectors to GitHub, Dropbox, Google Drive, SharePoint, and more
Volume pricing with consolidated billing
Enterprise Plan
Custom Pricing
Expanded context window in GPT‑4o for longer inputs
SCIM support, domain verification, user analytics
Custom data retention policies and region-specific data residency
24/7 priority support, SLAs, invoicing/ACH options
Built for at-scale deployments with unlimited users
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Editorial Note
This page was researched and written by the ATB Editorial Team. Our team researches each AI tool by reviewing its official website, testing features, exploring real use cases, and considering user feedback. Every page is fact-checked and regularly updated to ensure the information stays accurate, neutral, and useful for our readers.
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