is now an ernd partner: 10% back on inference 
In this guide
What does the error mean?
OpenAI returns HTTP 429 with one of three codes in error.code. The error.type can still be insufficient_quota.
| error.code | Title in OpenAI’s docs | Who set the cap |
|---|---|---|
organization_spend_limit_exceeded | 429 - Organization spend limit reached | You, for the whole organization |
project_spend_limit_exceeded | 429 - Project spend limit reached | You, for one project |
organization_usage_limit_exceeded | 429 - Organization usage limit reached | OpenAI, based on your usage tier |
Codes as listed on OpenAI’s Error codes page, checked November 5, 2026.
A project limit only stops traffic billed to that project. An organization limit stops every project in it.
Your AI bill, with ernd
What could your AI bill earn?
Enter an amount from $0 to $100,000,000.
back a year at 4%
For US companies. No annual fee. Illustration based on AI vendor spend only. Rewards are points redeemable as cash back.
How do you fix it?
- Read
error.codeto see which cap you hit. - For an organization limit, go to Organization limits, select Edit spend limit under Spend, and raise or remove the monthly limit. Then select Save.
- For a project limit, open Project settings, then Limits, and make the same change there.
- For the usage limit, ask OpenAI for a higher limit or contact its support team. Reaching the next tier raises it too. Build allows $500 a month, Launch $5,000 and Grow $200,000.
- Give the change a moment to propagate, then retry.
If you’d rather keep the cap, do nothing. The limit resets with the next monthly cycle.
How do you keep it from coming back?
Add spend alerts below each hard limit, for example at half and at three quarters of it. Alerts stay on when a hard limit is set, so you hear about it while there’s still time to act.
Give each product or customer its own project with its own limit. A runaway job then stops on its own budget and leaves the rest of the organization running.
It also helps to see spend in one place before it reaches a cap. ernd is a card for AI spend with 4% back, and putting AI vendors on it puts their charges on one statement.
Our OpenAI rate limits guide covers tiers and the limits that come with them.
The ernd card
Once your billing is back on track.
The card earns rewards on AI spend. It does not bypass provider quotas, fix account restrictions or change provider prices.
Request your cardThe ernd card is a credit card for US companies, with partners across the AI stack built in.
Common questions.
When does an OpenAI spend limit reset?
With the next monthly cycle. If you raise or remove the limit before then, traffic resumes once the change propagates.
Can spend go over the hard limit?
Slightly. OpenAI says enforcement isn't instantaneous, so recorded spend can end up a little above the amount you set.
Is a spend alert enough to stop runaway spend?
No. A spend alert only sends a notification. Only a spend limit with Enforce a hard limit turned on makes requests fail.
Sources & methodology
Checked . Providers change prices and terms; the linked official page is the final word. This guide is published by ernd.
ernd is run by Provenance Research Inc.