EC2 Spot Instance
Can get a discount of up to 90% compared to On-demand
Define max spot price and get the instance while current spot price < max • The hourly spot price varies based on offer and capacity
If the current spot price > your max price you can choose to stop or terminate your instance with a 2 minutes grace period.
Used for batch jobs, data analysis, or workloads that are resilient to failures.
Not great for critical jobs or databases