r8g family
The r8g family has 8 sizes on AWS OpenSearch, from 1 to 64 vCPUs and 8 to 512 GiB of memory. In US East (N. Virginia), on-demand prices run $0.098 to $6.259 per hour for the standard option. It is sold in 33 regions and listed as Arm (Graviton) and memory optimized.
Sizes and prices in US East (N. Virginia)
| Type | vCPUs | Memory (GiB) | On-demand /hr | 1-yr reserved /hr |
|---|---|---|---|---|
| r8g.medium.search | 1 | 8 | $0.098 | $0.068 |
| r8g.large.search | 2 | 16 | $0.196 | $0.135 |
| r8g.xlarge.search | 4 | 32 | $0.392 | $0.27 |
| r8g.2xlarge.search | 8 | 64 | $0.783 | $0.54 |
| r8g.4xlarge.search | 16 | 128 | $1.565 | $1.08 |
| r8g.8xlarge.search | 32 | 256 | $3.13 | $2.16 |
| r8g.12xlarge.search | 48 | 384 | $4.694 | $3.239 |
| r8g.16xlarge.search | 64 | 512 | $6.259 | $4.319 |
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Regions
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Prices in USD per hour for the standard option; reserved prices are 1 year, no upfront. Updated 2026-11-12 from AWS public price lists. Compare all AWS OpenSearch sizes.