150. Exploring All-New ECS Managed Instances (MI) Mode

150. Exploring All-New ECS Managed Instances (MI) Mode

From AWS Bites by AWS Bites

November 28, 2025 · 27 min · Season 1 · Episode 150

About this episode

This episode explores the new Amazon ECS Managed Instances, discussing its features, pricing, and practical applications.

Love AWS Fargate, but occasionally hit the “I need more control” wall (GPUs, storage, network bandwidth, instance sizing)? In this episode of AWS Bites, Eoin and Luciano put the brand-new Amazon ECS Managed Instances (ECS MI) under the microscope as the “middle path” between Fargate simplicity and ECS on EC2 flexibility. We unpack what ECS MI actually is and where it fits in the ECS spectrum, especially how it changes the way you think about clusters and capacity providers. From there we get practical: we talk through the pricing model (EC2 pricing with an additional ECS MI fee that can be a bit counterintuitive if you rely heavily on Reserved Instances or Savings Plans), and we share what it feels like to finally get GPU support in an experience that’s much closer to Fargate than to “full EC2 fleet management”. To make it real, we walk through what we built: a GPU-enabled worker that transcribes podcast audio using OpenAI Whisper, including the end-to-end setup in CDK (roles, capacity provider wiring, task definitions, and service configuration). Along the way we call out the rough edges we ran into, like configuration options that look like they might enable Spot-style…

People in this episode

Hosts: Eoin, Luciano

Topics covered

  • ECS Managed Instances
  • AWS Fargate
  • GPU support
  • ECS pricing model
  • capacity providers
  • podcast audio transcription

Keywords

  • ECS MI
  • Fargate
  • EC2
  • GPU jobs
  • capacity providers
  • podcast transcription

Mentioned in this episode

Organizations: AWS

Products: Amazon ECS Managed Instances, AWS Fargate, OpenAI Whisper

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