Announcing instance preference lists for Amazon SageMaker AI training jobs
SageMaker cuts GPU-hunting friction: specify five instance types, let AWS pick the first one with capacity.

Why it matters
A practical productivity feature for ML practitioners running training jobs at scale. Eliminates manual capacity-watching and retry loops — a small but real operational win for teams juggling GPU scarcity and cost.
The key facts
9 to knowInstance preference lists: up to five instance types per training/processing job
Automatic failover to first available capacity — no manual retries required
Eliminates need for custom capacity-watching scripts
SageMaker AI product feature, AWS announcement
Amazon SageMaker AI adds instance preference lists for training and processing jobs
Users can specify ordered list of up to 5 instance types
SageMaker automatically launches on first available type
Eliminates manual retry loops and capacity-watching scripts
Feature announced September 15, 2026
Go to the source
AWS Machine Learning Blogaws.amazon.com
Publisher excerpt: Amazon SageMaker AI now offers instance preference lists for training and processing jobs. Specify an ordered list of up to five instance types, and SageMaker AI automatically launches on the first type with available capacity, eliminating manual retry loops and capacity-watching scripts.