A OpenAI (ChatGPT) phone number for verification is a United States mobile number that receives the OpenAI (ChatGPT) SMS code for you, so your own number stays private. OpenAI runs ChatGPT and AI tools requiring account sign-up.
OpenAI asks for a phone number when you create a ChatGPT or API account and sends a code by SMS. SNSPhone numbers are real US carrier numbers, not VoIP, and one OpenAI (ChatGPT) verification costs $0.15 with a 20 minute window and an automatic refund if no code arrives.
Ways to verify OpenAI (ChatGPT) with a US non-VoIP number.
$0.15per verification
A private US number for one OpenAI (ChatGPT) code. The window is 20 minutes, another code on the same number is free, and if OpenAI (ChatGPT) sends nothing the full price returns to your credit.
OpenAI asks for a phone number when you create a ChatGPT or API account and sends a code by SMS.
OpenAI refuses VoIP numbers at this step, so a US carrier number is the one that works.
Keep the verification tab open while you buy the number.
What the SMS looks like
Sample text. The real message comes from OpenAI (ChatGPT) and shows in your console with the code picked out.
Step by step
The whole job takes about two minutes once your account has credit. Here is every step, from signup to a secured OpenAI (ChatGPT) account.
Press Sign up. Your browser makes an access token; save it as a file or copy it. No email or phone number is needed.
Open Credits and top up with USDT, USDC, BTC, ETH, BNB, SOL or LTC. The minimum is $30 ($20 in lower-income countries), and the first top-up from $100 gets a bonus.
Open New verification, pick OpenAI (ChatGPT) and confirm. A US mobile number shows at once, with a 20 minute window.
Choose United States (+1) in the OpenAI (ChatGPT) form and type the 10 digits. Ask OpenAI (ChatGPT) to send the code by SMS, not by a call.
The SMS shows in your console within moments, with the code picked out and a copy button. The page refreshes by itself.
Type the code into OpenAI (ChatGPT), then add your own email or an authenticator app in the OpenAI (ChatGPT) settings so later sign-ins do not depend on the number.
Ask OpenAI (ChatGPT) to send the code again from its own screen. If nothing arrives in the 20 minute window, the verification closes and the full price returns to your credit by itself.
Cancel the verification while it is waiting: the full price comes back at once. Start a new one and you get a different US number.
Press Another code in the console and ask the service to send a new SMS. It reaches the same number inside the window, free.
A verification number is not yours after 20 minutes, so add your own email or an authenticator app to the account before the window ends.
More answers about numbers, refunds and rentals are on the FAQ page, and the reasons apps refuse VoIP are explained in the non-VoIP guide.
Answers about using a US non-VoIP number with OpenAI (ChatGPT).
Yes, OpenAI works with US mobile numbers. SNSPhone provides real numbers that pass their checks. VoIP or virtual numbers often fail verification.
OpenAI may block temporary numbers, so SNSPhone's real US mobile numbers are better. Unused attempts are auto-refunded if no code arrives.
OpenAI uses phone checks to reduce spam and multi-account abuse. A US number from SNSPhone helps complete registration. This also secures your account access.
Yes. SNSPhone sells only United States mobile numbers from carriers, so OpenAI (ChatGPT) sees a mobile line, not VoIP.
$0.15 for one verification with a 20 minute window. If no code arrives, the full price returns to your credit.
Create an account, add credit and get a US non-VoIP number in under a minute. No subscription and no monthly spend.
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