Codex
Codex is included in your ChatGPT Free, Go, Plus, Pro, Business, or Enterprise plan.
Limited trial access to Codex.
Test Codex Capabilities
Limited access to flagship model GPT-5.3
Limited messages and uploads
Limited and slower image generation
Limited deep research
Limited memory and context
Limited trial access to Codex.
Test Codex Capabilities
More access to our flagship model GPT-5.3
More messages
More uploads
More image creation
Longer memory
Access the latest models
Power a few focused coding sessions each week.
Expanded Codex usage
Build with the Codex app for macOS and Windows
Connect tools like Slack, GitHub, Figma, and more with Plugins
Advanced reasoning models
Expanded messages and uploads
Expanded and faster image creation
Expanded deep research and agent mode
Expanded memory and context
Projects, tasks, and custom GPTs
Early access to new features
Designed for longer, higher-intensity sessions each day.
Maximum Codex tasks
Get 5x or 20x more usage than Plus
Access to GPT-5.3-Codex-Spark (research preview), a fast Codex model for day-to-day coding tasks
Unlock everything included in ChatGPT Pro
Pro reasoning with GPT-5.4 Pro
Unlimited GPT-5.3 and file uploads
Unlimited and faster image creation
Maximum deep research and agent mode
Maximum memory and context
Expanded projects, tasks, and custom GPTs
Research preview of new features
Unlimited subject to abuse guardrails. Learn more
Bring Codex to your startup or growing business.
Choose pay-as-you-go or fixed monthly seat-based pricing. Learn more
Extend usage with ChatGPT credits
Manage work securely with a dedicated workspace, essential admin controls, SAML SSO, and MFA
Keep your business data out of training by default. Learn more
Unlock everything included in ChatGPT Business
Unlock Codex for your entire organization with enterprise-grade functionality.
Choose pay-as-you-go or fixed monthly seat-based pricing. Learn more
Manage access with enterprise-grade security and controls, including SCIM, EKM, domain verification, user analytics, and RBAC
Get priority request processing
Monitor usage and activity with audit logs and the Compliance API
Control where data lives and how long it is retained. Learn more
Unlock everything included in ChatGPT Enterprise
Great for automation in shared environments like CI.
Pay only for the tokens Codex uses, based on API pricing
Build with the Codex app on macOS and Windows
Use Codex in your IDE and CLI
Work locally without cloud-based features like GitHub code review or Slack
Usage limits
*The usage limits for local messages and cloud tasks share a five-hour window. Additional weekly limits may apply. For Enterprise/Edu users, there are no fixed rate limits—usage scales with credits. Enterprise and Edu plans without flexible pricing have the same per-seat usage limits as Plus for most features
Frequently asked questions
ChatGPT Plus and Pro users who reach their usage limit can purchase additional credits to continue working without needing to upgrade their existing plan.
Business, Edu, and Enterprise plans with flexible pricing can purchase additional workspace credits to continue using Codex.
If you are approaching usage limits, you can also switch to the GPT-5.4-mini model to make your usage limits last longer.
All users may also run extra local tasks using an API key, with usage charged at standard API rates.