AWS EC2 Instance Family

a1

Instance Sizes

vCPU Range

1–16

Memory Range

2 GB–32 GB

Starting From

$0.03/hr

Regions

Sizes in this family

Available in 9 regions

Spot Availability

a1 instances run on spot in 9 regions, with 9 listings in AWS's lowest published interruption tier.

Region	Low-interruption types	Best tier	Median discount
ap-northeast-1	1	Lowest	—
ap-south-1	1	Lowest	—
ap-southeast-1	1	Lowest	—
ap-southeast-2	1	Lowest	—
eu-central-1	1	Lowest	—
eu-west-1	1	Lowest	—

Interruption tiers are AWS's own measure and rank regions within AWS only. Compare all AWS regions.

Instance	vCPU	RAM	On-Demand ↑	Spot	Regions
a1.medium	1	2 GB	$0.025	$0.022	▸9 regions
a1.large	2	4 GB	$0.051	$0.044	▸9 regions
a1.xlarge	4	8 GB	$0.102	$0.089	▸9 regions
a1.2xlarge	8	16 GB	$0.204	$0.178	▸9 regions
a1.metal	16	32 GB	$0.408	$0.355	▸9 regions
a1.4xlarge	16	32 GB	$0.408	$0.355	▸9 regions