canonical_url: https://yycode.net/docs/en/faq lang: en updated_at: 2026-07-04T13:33:48.616Z source_html: https://yycode.net/docs/en/faq # FAQ --- ## 1. What does the 0.3X rate multiplier on a group card mean? This is the **exchange rate** for that group. It represents how much platform balance you need to spend for every 1 USD of official model quota consumed. **Example:** > 0.3x means: when the model's official charge is **$1**, you only consume **0.3 platform balance** (equivalent to ¥0.3). > > Calculated at a real exchange rate of about 7, this is roughly **4.3% of the original price**. The lower the multiplier, the lower the usage cost. Different groups have different rate multipliers, so choose the group that fits your needs. --- ## 2. How is the actual deduction calculated? The actual deduction formula is: ``` Actual deduction = Official model price (USD) x group rate multiplier ``` **Example:** If a model call is officially billed at $0.50 and the group rate is 0.3x: > Actual deduction = $0.50 x 0.3 = **0.15 platform balance** You can view the detailed deduction for each call in **Usage Records** in the console. --- ## 3. What are the differences between groups? How should I choose? The main differences between groups are: - **Rate multiplier**: The lower the multiplier, the lower the cost - **Supported models**: Some groups may only support specific models - **Stability and speed**: Different groups may have different concurrency limits and response speeds General recommendation: choose the recommended group for daily use. If you have high stability requirements, choose a dedicated group. --- ## 4. Can I create multiple Keys? Yes. You can create multiple Keys on the **API Keys** page to separate different projects or purposes. Each Key is managed independently, and all Keys share the same account balance. --- ## 5. How is service stability guaranteed? We help ensure service stability through: - **Continuous monitoring**: 24/7 system monitoring to detect and handle exceptions promptly - **Capacity planning**: Dynamically adjusting resources based on usage to avoid overload - **Fault recovery**: Complete failover and automatic recovery mechanisms - **Performance optimization**: Continuous optimization of core capabilities for high-frequency development scenarios --- ## 6. How do I purchase? Currently, purchases are made through voucher cards. This may later change to **direct QR-code payment**, where the balance is credited automatically after payment. There are two ways to open the purchase page: 1. **Console entry**: Click **Wallet Management** in the console 2. **Direct link**: Visit [https://yycode.net/console/topup](https://yycode.net/console/topup), click **Purchase redemption code**, complete payment, copy the card code, then return to **Wallet Management** to redeem it manually. > **Important: After purchase, please be sure to add the customer support WeChat account**. Customer support will invite you to the **after-sales group** so you can receive follow-up service and support in time. --- ## 7. Can you issue invoices? Invoices are not supported at this time. --- ## 8. After-sales and Customer Support This covers after-sales matters such as accounts, top-ups, refunds, installation, and environment configuration. If you do not know how to install or configure the environment, you can contact technical support for **free guidance**. > If you need **remote operation** assistance, a **30 RMB** remote guidance fee is required, and an appointment must be scheduled separately. After-sales customer support WeChat QR code