With the rapid development of artificial intelligence technology, OpenAI's GPT series models have sparked a global trend. In particular, the newly launched gpt-4.1-mini and gpt-4.1-nano models, known for their efficiency, low cost, and high performance, have attracted the attention of many developers and enterprises. However, for domestic users, applying for and using the OpenAI API may face some challenges due to payment channel restrictions and the complexity of the network environment. This article will detail how domestic users can apply for access to the gpt-4.1-mini and gpt-4.1-nano interface permissions and provide a stable and secure payment solution—WildCard, helping you easily step into the world of AI development.
WildCard Official Website: https://leixue.com/go/yeka
1. Understanding gpt-4.1-mini and gpt-4.1-nano#
Before delving into the application process, let's briefly understand these two models:
- gpt-4.1-mini: This is a lightweight model launched by OpenAI, designed for low resource consumption and high efficiency, suitable for scenarios that require quick responses, such as real-time chat, content generation, or embedded device applications.
- gpt-4.1-nano: Compared to the mini version, the nano model further optimizes computational requirements, costs less, and is suitable for large-scale deployment or developers with limited budgets.
Access to the interfaces for these two models needs to be applied for through OpenAI's API platform, and typically requires binding an international payment method (such as Visa or MasterCard) for top-ups and subscriptions. For domestic users, traditional bank cards (such as UnionPay single logo cards) often cannot complete USD payments directly, highlighting the importance of virtual credit cards.
2. Core Steps for Domestic Users to Apply for OpenAI API#
Here are the detailed steps to apply for access to the gpt-4.1-mini and gpt-4.1-nano interface permissions:
1. Register for an OpenAI Account#
Visit OpenAI's official website, click the "Sign Up" button, and register using your email or Google account. Domestic users may need to use a VPN to ensure smooth access. After registration, log in and go to the API management page.
2. Create an API Project#
In the OpenAI platform, click on the "API" tab to create a new API project. Fill in the project name and description, then select the model you need to use (e.g., gpt-4.1-mini or gpt-4.1-nano). Some new models may require additional permission requests, so it is recommended to submit an application form after creating the project, explaining your use case (e.g., academic research, commercial development, etc.).
3. Bind Payment Method#
Using the OpenAI API requires pre-charging, with a minimum recharge amount typically being $5. Go to the "Billing" page, click "Add Payment Method," and enter valid international credit card information. Since domestic UnionPay cards usually cannot pay in USD directly, it is recommended to use WildCard, a virtual credit card designed for domestic users that supports top-ups via Alipay or WeChat, making it simple and stable.
4. Recharge and Interface Testing#
After binding the WildCard, it is advisable to recharge $25 for the first time to cover OpenAI's $5 pre-authorization fee and subsequent subscription costs. Once the recharge is complete, return to the OpenAI platform, generate an API Key, and conduct interface testing in the development environment to ensure you can call gpt-4.1-mini or gpt-4.1-nano normally.
5. Apply for Model Permissions#
For gpt-4.1-mini and gpt-4.1-nano, some users may need to apply for additional permissions. Go to OpenAI's "Model Access" page, submit an application form, and explain your development needs and expected usage. Typically, OpenAI will respond within 1-3 business days.
3. Why Choose WildCard?#
Among many virtual credit cards, WildCard has become the preferred choice for domestic users due to its convenience and stability. Here are its core advantages:
- Supports Domestic Payment Methods: No need to purchase USDT or other cryptocurrencies; WildCard directly supports top-ups via Alipay and WeChat, with a low operational threshold that can be completed in minutes.
- High Stability and Security: Compared to other virtual cards (such as Dupay, VCard, PokePay, WasabiCard, LocalCard), WildCard has been optimized for the OpenAI payment system, effectively avoiding risk control interceptions.
- Wide Applicability: In addition to the OpenAI API, WildCard also supports subscriptions to various overseas services such as ChatGPT Plus, Claude, Midjourney, and can even be used in Google Play and Apple Store.
- Promotional Activities: By registering on the WildCard official website and using the invitation code "LEIXUE," new users can enjoy a card opening discount, with a one-year fee of only $11.99 and two years for $16.99, offering great value.
In contrast, other virtual cards like Dupay or VCard usually require USDT for top-ups, which is cumbersome and carries exchange rate fluctuation risks. Meanwhile, PokePay, WasabiCard, and LocalCard may not be as stable as WildCard, especially in high-frequency trading or OpenAI payment scenarios.
4. Precautions During the Application Process#
- Network Environment: The OpenAI platform is sensitive to IP addresses, so it is recommended to use a stable overseas home network IP and avoid using shared proxy nodes, as this may trigger payment interceptions.
- Real-name Authentication: WildCard can be used without KYC authentication; unverified accounts have a monthly limit of $100, which can be increased to $3000 after completing Alipay facial recognition.
- Cost Management: OpenAI API charges based on usage, so it is advisable to regularly check the "Usage" page to avoid overspending. WildCard has no additional fees for consumption and withdrawals, making fund management more transparent.
- Backup Plan: If WildCard is temporarily unavailable due to maintenance, consider subscribing to ChatGPT Plus through in-app purchases on the Apple Store or Google Play, but API recharges still require virtual card support.
5. Registration and Usage Process for WildCard#
To help everyone get started quickly, here are the registration and recharge steps for WildCard:
- Visit the Official Website: Open the WildCard official website and click the "Register" button.
- Create an Account: Enter your phone number (mainland users select “+86”), obtain a verification code, and submit the registration.
- Open a Card: After logging in, go to the "My Cards" page, choose a one-year or two-year package, and enter the invitation code "LEIXUE" to enjoy the discount.
- Recharge: Top up via Alipay or WeChat QR code, with an initial recommendation of $25.
- Bind Payment: Obtain virtual card information (card number, expiration date, CVV) and bind it on the OpenAI platform for use.
6. Conclusion#
For domestic users, applying for access to the gpt-4.1-mini and gpt-4.1-nano interface permissions is not complicated; the key lies in choosing the right payment tool. WildCard, with its convenient domestic payment methods, high stability, and wide applicability, has become the best choice for subscribing to ChatGPT Plus and recharging the OpenAI API. Compared to other virtual cards that require USDT top-ups (such as Dupay, VCard, PokePay, WasabiCard, LocalCard), WildCard is simpler to operate and offers more controllable costs.
Visit the WildCard official website now, register using the invitation code "LEIXUE," and start your AI development journey! Whether you are an individual developer or a small to medium-sized enterprise, WildCard can provide you with stable and secure payment support, allowing you to focus on technological innovation rather than payment challenges.