i4g.16xlarge.search is an AWS OpenSearch size with 64 vCPUs, 512 GiB memory. In US East (N. Virginia) it costs $7.907 per hour on demand ($5,772.11 per month); a 1-year reserved instance with no upfront costs $5.456 per hour, 31% less. It is sold in 8 regions.
Prices by region
USD per hour. Reserved prices are no upfront, standard. Cheapest on-demand first.