The statement is false . Huawei Cloud ECS supports multiple billing models, and cost optimization is not exclusive to pay-per-use billing. The principal modes include yearly/monthly, pay-per-use, and spot pricing , with each optimized for different workload characteristics.

Pay-per-use is useful for workloads with uncertain or fluctuating demand because resources are billed according to actual usage and can be released when no longer required. However, yearly/monthly billing can provide a lower effective price for stable, long-running workloads because Huawei Cloud applies subscription discounts; the longer the committed subscription period, the greater the potential discount. Therefore, for predictable production workloads running continuously, yearly/monthly billing can be substantially more economical than pay-per-use.

Spot pricing is another cost-saving mechanism. Spot instances use market-based pricing and can provide compute resources at a lower price where workload interruption characteristics permit their use. Consequently, several ECS billing models can reduce expenditure when aligned to an appropriate workload.

The incorrect portion of the statement is therefore the assertion that only pay-per-use can reduce costs .

Reference topics: Elastic Cloud Server; ECS Billing Modes; Yearly/Monthly; Pay-per-Use; Spot Pricing.

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