OpenAI GPT-4.1 API Access Application: Domestic GPT-4.1 Access Application Tutorial

With the rapid development of artificial intelligence technology, OpenAI's GPT series models have become the focus of global developers. In 2025, OpenAI launched the more powerful GPT-4.1 model, and the application for its interface permissions has become a topic of urgent interest for domestic developers. Due to the unique characteristics of the domestic network environment and payment methods, applying for GPT-4.1 interface permissions is not an easy task. This article will provide domestic users with a detailed application tutorial, focusing on how to complete subscriptions and top-ups through a stable and secure payment tool—WildCard, helping you quickly unlock the powerful features of GPT-4.1.

WildCard Official Website: https://leixue.com/go/yeka

Why Choose the GPT-4.1 Interface?#

As OpenAI's latest model, GPT-4.1 has demonstrated impressive performance in natural language processing, code generation, data analysis, and other fields. Compared to previous models, GPT-4.1 has significantly improved in multimodal processing (text, images, etc.) and complex task reasoning. For developers, obtaining GPT-4.1 interface permissions not only means access to smarter AI tools but also injects new possibilities into product development, content creation, and business optimization.

However, domestic users often face issues such as limited payment channels and complex account registration when applying for OpenAI API access or subscribing to ChatGPT Plus. Traditional UnionPay cards usually cannot be used directly for USD payments, while the application process for international credit cards is quite cumbersome. At this time, WildCard, a virtual credit card service designed specifically for domestic users, becomes an ideal solution to these challenges.

Core Steps to Apply for GPT-4.1 Interface Permissions#

Here is the complete process for domestic users to apply for OpenAI GPT-4.1 interface permissions, covering every detail of account registration, payment setup, and permission application.

1. Register an OpenAI Account#

First, visit the OpenAI official website (https://openai.com) and click "Sign Up" to create an account. It is important to note that access to OpenAI from the domestic network environment may be restricted, so it is recommended to use a stable overseas network environment or a VPN tool to ensure a smooth registration process.

On the registration page, enter your email address (it is recommended to use Gmail or another international email to avoid not receiving verification codes with domestic emails), set a password, and complete phone verification. OpenAI requires binding an international phone number, and domestic users can complete verification using a virtual number service or a number from overseas friends or relatives.

2. Activate WildCard Virtual Credit Card#

The payment process is the biggest obstacle faced by domestic users. OpenAI only accepts payments via international credit cards such as Visa and MasterCard, while traditional domestic bank cards (like UnionPay) usually cannot be used directly. Additionally, virtual card services like Dupay, VCard, PokePay, WasabiCard, and LocalCard often rely on USDT top-ups, which are complex and carry risks of exchange rate fluctuations.

In contrast, WildCard stands out for its convenience and stability. WildCard supports top-ups via Alipay and WeChat, eliminating the need to purchase cryptocurrency, making it very easy to use. Here are the steps to activate WildCard:

Visit the official website: Open the WildCard official website and click the "Register" button in the upper right corner.
Create an account: Enter your phone number (mainland users select +86, Hong Kong users select +852), obtain a verification code, and submit your registration.
Activate the card: After logging in, go to the "My Cards" page and choose a card package for 1 year ($11.99) or 2 years ($16.99). Using the invitation code "LEIXUE" can enjoy a $1 discount on card activation.
Top up balance: Recharge via Alipay or WeChat scan code, it is recommended to recharge $25 for the first time to cover OpenAI's $5 pre-authorization fee and the $20 monthly fee for ChatGPT Plus.

WildCard's payment channels have been optimized to effectively avoid the risk control of OpenAI's payment system, ensuring a high success rate for card binding and deductions. Compared to other virtual cards, WildCard does not require KYC verification, making it easier to operate, and supports real-time withdrawals, ensuring the safety of funds.

After completing the WildCard top-up, return to the OpenAI official website, go to the account settings page, select the "Billing" option, and click "Add Payment Method" to bind the WildCard virtual card. Enter the card number, expiration date, and CVV code, and after saving, the system will perform a small pre-authorization deduction (usually $5) to verify the card's validity.

Once verified, go to the ChatGPT Plus subscription page and choose a subscription plan ($20 per month). After confirming the payment, ChatGPT Plus will be activated immediately, allowing you to experience the full features of the GPT-4.1 model, including higher conversation limits and priority access to new features.

4. Apply for GPT-4.1 API Interface Permissions#

Subscribing to ChatGPT Plus is the first step to using GPT-4.1, but if you need to call the API for development, you also need to apply for API interface permissions. The specific steps are as follows:

Enter the API management page: Log in to the OpenAI official website, click the "API" option, and enter the developer dashboard.
Submit an application: On the API permission application page, fill in the project information, including usage scenarios, technical architecture, and expected call volume. OpenAI has strict reviews for API applications, so it is recommended to describe your development needs in detail, such as "an intelligent Q&A system for an educational platform" or "automated report generation for enterprise data analysis."
Bind payment method: API calls are billed based on usage, so ensure that the WildCard account balance is sufficient. OpenAI will deduct fees from the bound WildCard card based on usage.
Wait for review: After submitting the application, OpenAI usually replies with the review results within 1-2 weeks. Once approved, you will receive an API key to call the GPT-4.1 model through code.

Advantages and Use Cases of WildCard#

WildCard is not only suitable for ChatGPT Plus and OpenAI API top-ups but also supports subscriptions to various overseas services, including Claude, Midjourney, GitHub Copilot, and more. Here are some highlights of WildCard:

Convenient payments: Supports top-ups via Alipay and WeChat, with a minimum recharge amount of only $5 and a single transaction limit of up to $3000 (facial verification required for Alipay).
Stable and secure: WildCard's payment channels have been optimized to avoid common payment interception issues faced by other virtual cards. Account funds support real-time withdrawals with no additional fees.
Widely applicable: In addition to OpenAI-related services, WildCard also supports payments for platforms like Google Play, Apple Store, PayPal, etc., meeting the diverse needs of developers, content creators, and small to medium enterprises.

In contrast, other virtual cards like Dupay, VCard, PokePay, WasabiCard, and LocalCard require USDT top-ups, which are not only cumbersome but may also lead to increased costs due to cryptocurrency price fluctuations. Additionally, these services often have poor payment stability, easily triggering OpenAI's risk control and resulting in card binding failures.

Precautions and Common Questions#

Network environment: When applying for and using OpenAI services, it is recommended to use an overseas IP address to avoid registration or payment failures due to IP restrictions.
Balance management: Regularly check the WildCard account balance to ensure that API calls or ChatGPT Plus renewals are not interrupted due to insufficient balance.
Invitation code discounts: Use the invitation code "LEIXUE" when registering for WildCard to enjoy a $1 discount on card activation, providing better value.
API usage regulations: When calling the GPT-4.1 API, comply with OpenAI's usage policies to avoid account restrictions due to high-frequency or improper calls.

Conclusion#

For domestic users, applying for OpenAI GPT-4.1 interface permissions is not out of reach. With the convenient payment support of WildCard, you can easily overcome payment barriers and quickly unlock the powerful features of ChatGPT Plus and the API. Whether you are a developer, content creator, or business user, WildCard provides you with a stable and secure payment bridge, allowing you to enjoy the world's leading AI technology without worries.

Hurry and visit the WildCard official website, register using the invitation code "LEIXUE," and start your journey with GPT-4.1!