r6gd.8xlarge.search is an AWS OpenSearch size with 32 vCPUs, 256 GiB memory. In US East (N. Virginia) it costs $3.06 per hour on demand ($2,233.80 per month); a 1-year reserved instance with no upfront costs $2.111 per hour, 31% less. It is sold in 15 regions; the cheapest is Asia Pacific (Mumbai) at $1.984 per hour.
Prices by region
USD per hour. Reserved prices are no upfront, standard. Cheapest on-demand first.