r8i-flex family
The r8i-flex family has 7 sizes on AWS EC2, from 2 to 64 vCPUs and 16 to 512 GiB of memory. In US East (N. Virginia), on-demand prices run $0.132 to $4.223 per hour for Linux. It is sold in 27 regions and listed as memory optimized.
Sizes and prices in US East (N. Virginia)
| Type | vCPUs | Memory (GiB) | On-demand /hr | Spot /hr | 1-yr Savings Plan /hr |
|---|---|---|---|---|---|
| r8i-flex.large | 2 | 16 | $0.132 | $0.0347 | $0.0956 |
| r8i-flex.xlarge | 4 | 32 | $0.2639 | $0.0867 | $0.1912 |
| r8i-flex.2xlarge | 8 | 64 | $0.5279 | $0.1813 | $0.3825 |
| r8i-flex.4xlarge | 16 | 128 | $1.056 | $0.2847 | $0.7649 |
| r8i-flex.8xlarge | 32 | 256 | $2.111 | $0.7816 | $1.53 |
| r8i-flex.12xlarge | 48 | 384 | $3.167 | $0.614 | $2.295 |
| r8i-flex.16xlarge | 64 | 512 | $4.223 | $1.038 | $3.06 |
Compare r8i-flex
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Regions
Africa (Cape Town)Asia Pacific (Tokyo)Asia Pacific (Seoul)Asia Pacific (Mumbai)Asia Pacific (Hyderabad)Asia Pacific (Singapore)Asia Pacific (Sydney)Asia Pacific (Malaysia)Asia Pacific (New Zealand)Canada (Central)Canada West (Calgary)EU (Frankfurt)Europe (Zurich)EU (Stockholm)EU (Milan)Europe (Spain)EU (Ireland)EU (London)EU (Paris)Middle East (UAE)South America (Sao Paulo)US East (N. Virginia)US East (Ohio)AWS GovCloud (US-East)AWS GovCloud (US-West)US West (N. California)US West (Oregon)
Prices in USD per hour for Linux; reserved prices are 1 year, no upfront. Updated 2026-11-12 from AWS public price lists. Compare all AWS EC2 instance types.