AWS

Amazon EC2 Spot Instances

Amazon EC2 Spot Instances are an AWS compute service designed to run workloads at significantly reduced costs. They allow users to leverage unused EC2 capacity for flexible, fault-tolerant applications. This service is primarily used for batch processing, data analysis, and other tasks that can handle interruptions, offering a way to lower infrastructure expenses without committing to long-term contracts.

Choose this service when cost optimization is the primary driver and your application can tolerate potential instance interruptions. It operates on a pay-as-you-go model with no free tier available. Be aware that while the vendor description mentions running workloads for up to 90% off, this discount is not guaranteed and depends on current market capacity and pricing fluctuations.