What Is the OpenAI Hard Limit
The hard limit is the maximum amount you can spend on the OpenAI API in a calendar month. When your spending reaches this amount, the API stops accepting new requests. All API calls begin returning the error 429 - You exceeded your current quota.
Limits are configured under Settings → Limits in your OpenAI account. The same section shows your current spending progress for the month.
How the Hard Limit Differs from the Soft Limit
OpenAI provides two types of limits:
Soft limit — a threshold at which OpenAI sends you an email notification. The API continues to work. The soft limit is a warning only; it does not stop requests.
Hard limit — an absolute ceiling. Once reached, the API is completely suspended until the end of the month or until you raise the limit.
By default, both limits are set automatically based on your account history. New accounts typically receive low starting limits.
How to Raise the Hard Limit: Step-by-Step
Step 1. Go to your billing settings. Navigate to platform.openai.com → Settings → Billing → Usage limits.
Step 2. Review your current limits. You will see your current soft and hard limits, as well as the amount spent in the current month.
Step 3. Change the hard limit value. Click the hard limit field and enter a new amount. The new limit cannot exceed the maximum allowed for your account.
Step 4. If the desired limit is unavailable, request an increase. If the increase button is grayed out or the maximum allowed amount is too low, you need to submit a request through OpenAI's form. This typically requires:
- A valid payment method on file
- A usage history of at least a few weeks
- A verified account
Step 5. Wait for the review. OpenAI typically reviews limit increase requests within 1–7 business days.
FAQ
The API stopped working mid-month — is this the hard limit?
Most likely yes, if you're seeing the error 429 You exceeded your current quota. Check the Usage section in your settings — it shows whether you've hit the limit.
Can I set the hard limit to $0 to block all spending? Yes. A hard limit of $0 effectively blocks all API requests. This is useful for test accounts or when you want to pause spending entirely.
Does the limit reset every month? Spending resets at the start of each calendar month. The hard limit itself does not change — you set it once and it stays in effect until you modify it.
Why is the limit so low for a new account? OpenAI applies a principle of gradual trust. New accounts receive a small initial limit that increases as a confirmed history of usage and payments builds up.
For smooth API access without payment-related blocks, use Marix — virtual cards accepted by OpenAI without restrictions.