Amazon ECS Managed Instances now supports Amazon EC2 Spot Instances

Published

December 18, 2025

Amazon ECS Managed Instances

Amazon ECS Managed Instances now supports Amazon EC2 Spot Instances, extending the range of capabilities available with AWS-managed infrastructure. With this launch, you can leverage spare EC2 capacity at up to 90% discount compared to On-Demand prices for fault-tolerant workloads, while AWS handles infrastructure management.

ECS Managed Instances is a fully managed compute option designed to eliminate infrastructure management overhead, dynamically scale EC2 instances to match your workload requirements, and continuously optimize task placement to reduce infrastructure costs. You can define your task requirements such as the number of vCPUs, memory size, and CPU architecture, and Amazon ECS automatically provisions, configures, and operates the most optimal EC2 instances within your AWS account using AWS-controlled access.

You can specify desired instance types in Managed Instances capacity provider configuration, including GPU-accelerated, network-optimized, and burstable performance, to run your workloads on the instance families you prefer. With today's launch, you can additionally configure a new parameter, capacityOptionType, as spot or on-demand in your capacity provider configuration.

Support for EC2 Spot Instances is available in all AWS Regions that Amazon ECS Managed Instances is available. You will be charged for the management of compute provisioned, in addition to your spot Amazon EC2 costs.