m3 family
The m3 family has 4 sizes on AWS OpenSearch, from 1 to 8 vCPUs and 3.75 to 30 GiB of memory. In US East (N. Virginia), on-demand prices run $0.094 to $0.752 per hour for the standard option. It is sold in 9 regions and listed as general purpose.
Sizes and prices in US East (N. Virginia)
| Type | vCPUs | Memory (GiB) | On-demand /hr | 1-yr reserved /hr |
|---|---|---|---|---|
| m3.medium.search | 1 | 3.75 | $0.094 | – |
| m3.large.search | 2 | 7.5 | $0.188 | – |
| m3.xlarge.search | 4 | 15 | $0.376 | – |
| m3.2xlarge.search | 8 | 30 | $0.752 | – |
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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.