CloudEstimate

Size OpenSearch on AWS

Extra Small — up to 100 GB hot index data on a single node

Monthly cost

$202.66

Annual cost

$2,432/year

Line-item breakdown

Compute $140.16
Storage $62.50
Other $0.00

Components provisioned

Role Instance vCPU GB RAM Storage
Node 1 × m6i.xlarge 4 16 500 GB

Why this sizing

This Extra Small OpenSearch configuration supports up to 100 GB of hot index data on a single node, suitable for development or minimal production workloads without high availability. Compute is the primary cost driver, accounting for 69% of the total monthly cost at $140.16. The single-node architecture eliminates high availability, making it susceptible to downtime during node failures.

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Related views

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Sources

Reference architecture: OpenSearch for single-node, version OpenSearch 2.17 cluster tuning guidance, retrieved April 13, 2026.

https://docs.opensearch.org/docs/2.17/tuning-your-cluster/

Pricing: AWS pricing snapshot, retrieved May 6, 2026.

Commercial pricing only. GovCloud, sovereign cloud, and discounts beyond those shown are not modelled.

Not included in this estimate

  • Vendor licensing and support
  • Professional services
  • Network egress
  • Compliance controls
  • Backup storage
  • Monitoring

Based on OpenSearch cluster tuning and operational guidance, translated into VM-based planning tiers.

Estimate excludes warm or cold tiers, snapshots, machine-learning plugins, remote storage, and network transfer.

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