Understanding ChatGPT and Codex usage limits

Managing usage with GPT-6 Astra in Work and Codex

Understand model choices, usage allowances, and Ultrafast in Work and Codex.

Manage usage limits and overages in ChatGPT Enterprise and Edu

Learn how Enterprise and Edu workspace owners and admins can manage user limits and spending for their workspace's billing model.

Troubleshooting API usage and spend limits

Identify the limit or credit balance affecting your API requests and find the right next step.

Troubleshooting API rate limits and 429 errors

Identify the cause of an API 429 error, reduce request bursts, and choose the right next step for rate, credit, or usage limits.

Paid weekly Work and Codex rate limit resets

Learn how to buy a weekly, immediate, rate limit reset for Codex and Work, and how a purchase affects your usage and next reset date.

How resets work in Codex

Learn how banked resets work, how to use them, when they expire, and how to troubleshoot reset issues.

Is the Moderation endpoint free to use?

Learn about the cost of using the Moderation endpoint.

ChatGPT Free Tier FAQ

ChatGPT is free to use. Free tier users have access to a range of chat capabilities, tools, and GPTs. The default model and available limits can change over time.

Luna Reserve in Codex and ChatGPT Work

Learn about Luna Reserve availability, usage limits, and options for returning to regular usage.

ChatGPT Business models and limits

Learn which models are available in ChatGPT Business and where to check current model options and usage limits.

Understanding card and device limits in ChatGPT

Find out what to do if ChatGPT blocks a subscription purchase or shows “Device limit reached” when you sign in.

About ChatGPT Pro tiers

Information about our paid subscription plan, Pro.

Reviewing Work and Codex usage and using Personal Analytics in ChatGPT Desktop

Learn how to review Work and Codex usage, check monthly usage limits, and use Personal Analytics to explore activity patterns.

Reviewing API usage and costs

Review API activity in the Usage Dashboard, check token counts in API responses, and understand project filters, exports, and Scale Tier costs.

Political campaigning restrictions

Understand which political campaigning, lobbying, and election-related activities OpenAI’s Usage Policies prohibit.

File storage quota errors for API users

What to do when you encounter an error about reaching your file storage quota for assistants.

Understanding and counting tokens

Learn how input, output, cached, and reasoning tokens affect API usage, model limits, and costs.

Using Credits for Flexible Usage in ChatGPT (Personal plans)

Key information and FAQs about using credits.

Daily budgets

Learn how daily budgets and spending limits work when creating or editing campaigns in Ads Manager.