i8ge.18xlarge.search
i8ge.18xlarge.search is an AWS OpenSearch size with 72 vCPUs, 576 GiB memory. In US East (N. Virginia) it costs $13.668 per hour on demand ($9,977.64 per month); a 1-year reserved instance with no upfront costs $9.431 per hour, 31% less. It is sold in 19 regions.
Prices by region
USD per hour. Reserved prices are no upfront, standard. Cheapest on-demand first.
| Region | On-demand | 1-yr reserved | 3-yr reserved | 1-yr savings plan |
|---|---|---|---|---|
| US East (N. Virginia) us-east-1 | $13.668 | $9.431 | $7.107 | $10.934 |
| US East (Ohio) us-east-2 | $13.668 | $9.431 | $7.107 | $10.934 |
| US West (Oregon) us-west-2 | $13.668 | $9.431 | $7.107 | $10.934 |
| EU (Stockholm) eu-north-1 | $14.334 | $9.89 | $7.454 | $11.467 |
| Asia Pacific (Malaysia) ap-southeast-5 | $14.757 | $10.182 | $7.674 | $11.806 |
| Asia Pacific (Thailand) ap-southeast-7 | $14.757 | $10.182 | $7.674 | $11.806 |
| Canada (Central) ca-central-1 | $15.12 | $10.433 | $7.862 | $12.096 |
| EU (Ireland) eu-west-1 | $15.12 | $10.433 | $7.862 | $12.096 |
| Asia Pacific (Mumbai) ap-south-1 | $15.543 | $10.725 | $8.082 | $12.434 |
| EU (London) eu-west-2 | $15.906 | $10.975 | $8.271 | $12.725 |
| EU (Paris) eu-west-3 | $15.906 | $10.975 | $8.271 | $12.725 |
| Asia Pacific (Tokyo) ap-northeast-1 | $16.088 | $11.101 | $8.366 | $12.87 |
| Asia Pacific (Seoul) ap-northeast-2 | $16.088 | $11.101 | $8.366 | $12.87 |
| EU (Frankfurt) eu-central-1 | $16.33 | $11.268 | $8.492 | $13.064 |
| Asia Pacific (Singapore) ap-southeast-1 | $16.39 | $11.309 | $8.523 | $13.112 |
| Asia Pacific (Sydney) ap-southeast-2 | $16.39 | $11.309 | $8.523 | $13.112 |
| AWS GovCloud (US-East) us-gov-east-1 | $16.511 | $11.393 | $8.586 | $13.209 |
| AWS GovCloud (US-West) us-gov-west-1 | $16.511 | $11.393 | $8.586 | $13.209 |
| Asia Pacific (Hong Kong) ap-east-1 | $18.053 | $12.457 | $9.388 | $14.443 |
Specs
| Compute | Value |
|---|---|
| vCPUs | 72 |
| Physical cores | 72 |
| Threads per core | 1 |
| Architecture | arm64 |
| CPU maker | AWS |
| Sustained clock | 2.8 GHz |
| Burstable | No |
| ECU | variable |
| Memory | Value |
|---|---|
| Memory (GiB) | 576 |
| Networking | Value |
|---|---|
| Network baseline | 112.5 Gbps |
| Network peak | 112.5 Gbps |
| Storage | Value |
|---|---|
| Storage | 6 x 7500 GB SSD |
| Local disks | 6 × 7,500 GB SSD |
| EBS baseline bandwidth | 22,500 Mbps |
| EBS max bandwidth | 22,500 Mbps |
| EBS baseline throughput | 2,812.5 MB/s |
| EBS max throughput | 2,812.5 MB/s |
| EBS baseline IOPS | 90,000 |
| EBS max IOPS | 90,000 |
| Cluster | Value |
|---|---|
| Node roles | Data |
| UltraWarm | Yes |
| Instance details | Value |
|---|---|
| Instance type | i8ge.18xlarge.search |
| Family | i8ge |
| Category | Storage optimized |
| Current generation | Yes |
| Other | Value |
|---|---|
| Hardware Basis | i8ge.18xlarge |
Other i8ge sizes
| Size | vCPUs | Memory (GiB) | On-demand /hr |
|---|---|---|---|
| i8ge.large.search | 2 | 16 | $0.38 |
| i8ge.xlarge.search | 4 | 32 | $0.759 |
| i8ge.2xlarge.search | 8 | 64 | $1.519 |
| i8ge.3xlarge.search | 12 | 96 | $2.278 |
| i8ge.6xlarge.search | 24 | 192 | $4.556 |
| i8ge.12xlarge.search | 48 | 384 | $9.112 |
| i8ge.18xlarge.search | 72 | 576 | $13.668 |
Prices updated 2026-11-12 from AWS public price lists. Compare all AWS OpenSearch sizes.