OpenAI Codex
Develops AI systems for solving complex problems.
What is OpenAI Codex?
OpenAI Codex is a Code Generation tool that develops AI systems for solving complex problems. OpenAI Codex is freemium: it has a free plan plus paid upgrades. It is aimed at developers, businesses and productivity teams.
OpenAI focuses on research and deployment of AI systems. It aims to create artificial general intelligence capable of addressing human-level challenges.
Built for developers, businesses and productivity teams.
Key capabilities
Features
Code Writing
Writes code in isolated sandboxes.
Pull Request Automation
Parallel Task Execution
Runs tasks in parallel.
Public API
Provides access to a public API.
ISO Certification
Compliant with ISO 27001, 27017, 27018, and 27701 standards.
SAML SSO
Data Encryption
Encrypts data in transit using TLS 1.2.
Use cases
- Write code in isolated sandboxes
- Run tasks in parallel
- Access public API
- Use free plan
- Access enterprise pricing
Popular use cases
Who it's for
Pros & cons
Pros
- Public API available
- Free plan available
- Custom and enterprise pricing available
Cons
No documented limitations yet.
Pricing
Freemium.
| Plan | Price |
|---|---|
| Free | Free |
| Essentials | Free |
| Developer mode (beta) | Free |
| Basic user analytics | Free |
| Enterprise Key Management | Free |
| Custom security review | Free |
AI models
- DALL-E
- GPT 5
Developer & API
Public SDK API available
Security & compliance
- ISO 27001
- SSO
- SAML
- Encryption
As stated on OpenAI Codex's website — not independently verified by AiByts.
FAQ
What is OpenAI Codex?
OpenAI Codex is a Code Generation tool that develops AI systems for solving complex problems. OpenAI focuses on research and deployment of AI systems. It aims to create artificial general intelligence capable of addressing human-level challenges.
Is OpenAI Codex free?
OpenAI Codex has a free plan; advanced features require a paid plan.
How much does OpenAI Codex cost?
OpenAI Codex offers 6 plans: Free (Free), Essentials (Free), Developer mode (beta) (Free), Basic user analytics (Free), Enterprise Key Management (Free) and Custom security review (Free).
Does OpenAI Codex have an API?
Yes, OpenAI Codex offers a public SDK API for building custom integrations.
Who should use OpenAI Codex?
OpenAI Codex is built for developers, businesses and productivity teams. Common uses: write code in isolated sandboxes, run tasks in parallel, access public API and use free plan.
What are the best alternatives to OpenAI Codex?
Similar tools on AiByts include Runcell, Zentask, Kilo Code, Antigravity CLI and GitHub Copilot.
OpenAI Codex news & updates
Details are compiled from OpenAI Codex's website and public sources, last verified Oct 3, 2026. Features and pricing change — confirm on the official site before you buy.
Try OpenAI Codex
Freemium
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