Billing
Fine-tuning Pricing
Model Power Ark's model fine-tuning service adopts a billing model based on fine-tuning duration. Specific costs depend on the time consumed for fine-tuning.
The relationship between currently supported models, computing power, and pricing is shown in the table below:
| Model/Computing Power | Muxi C500 |
|---|---|
| Qwen2.5 | 6 USD/hour |
| Qwen3 | 6 USD/hour |
| SDXL | 6 USD/hour |
| FLUX-Dev | 6 USD/hour |
| Qwen Image | 12 USD/hour |
Billing Process
Before starting model fine-tuning, the system will first estimate a price based on the selected model and dataset, and require you to pay before fine-tuning begins. When fine-tuning ends, the system adopts a "refund for overpayment, no additional charge for underpayment" scheme. This means if the actual consumption cost is less than what you paid, the overpaid amount is automatically refunded to your account; if the actual running cost exceeds the estimated cost, you do not need to pay for the excess portion.
Model fine-tuning services can use vouchers, computing power coupons, and discount coupons for deduction.