The i8ge instances deliver up to 60% improved compute and storage I/O performance compared to previous generation Graviton2-based instances, using third-generation AWS Nitro SSDs with lower latency and variability. They support instance sizes up to 18xlarge and 45 TB local NVMe storage, providing the highest networking bandwidth (112.5 Gbps) among storage optimized instances.
Compatible with all OpenSearch and certain Elasticsearch versions, these instances are available in multiple global AWS regions, catering to customers demanding high throughput and low latency for storage-intensive analytics and search workloads on OpenSearch Service.
Source & further reading
Amazon OpenSearch Service now supports Graviton4 based i8ge instances ↗Source published 2026-04-08. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.