r3 family
The r3 family has 5 sizes on AWS OpenSearch, from 2 to 32 vCPUs and 15 to 244 GiB of memory. In US East (N. Virginia), on-demand prices run $0.245 to $3.92 per hour for the standard option. It is sold in 12 regions and listed as memory optimized.
Sizes and prices in US East (N. Virginia)
| Type | vCPUs | Memory (GiB) | On-demand /hr | 1-yr reserved /hr |
|---|---|---|---|---|
| r3.large.search | 2 | 15 | $0.245 | – |
| r3.xlarge.search | 4 | 30.5 | $0.49 | – |
| r3.2xlarge.search | 8 | 61 | $0.98 | – |
| r3.4xlarge.search | 16 | 122 | $1.96 | – |
| r3.8xlarge.search | 32 | 244 | $3.92 | – |
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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.