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Amazon OpenSearch Service pricing and limits

iScore43–68 · ≈#4/5
aws.amazon.com/opensearch-service · Search
SEPT 2026 audit

Managed OpenSearch in two deployment models: provisioned instances billed by the hour, or serverless billed by compute unit.

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Entry paid plan$0.24 per OCU-hour for serverless, and that figure is quoted from a worked example on the page rather than from its price table — the table renders the rate as a template placeholder filled in by a pricing API. No monthly minimum is published for either model.
Free tierNo
CategorySearch

Reviewed by Palash BagchiUpdated 6 criteria comparedSources last checked

Amazon OpenSearch Service pricing at a glance

Entry paid plan
$0.24 per OCU-hour for serverless, and that figure is quoted from a worked example on the page rather than from its price table — the table… source ↗
Pricing model
Two models, billed differently source ↗

First line of each sourced value. The full text is in Amazon OpenSearch Service pricing below.

01.Evaluation guide

Who it suits

An estate already on AWS. Two deployment models under one service — instances you size and reserve, or serverless compute units — with reserved pricing and savings plans available, and IAM, KMS and VPC integration that needs no extra wiring.

Consider something else if…

You want a price you can read off a page. The serverless rate renders as a template placeholder filled in by an API, and the only figure on the pricing page is inside a worked example; vector search is also billed as its own collection type that cannot share compute with keyword search.

Editorial · Palash Bagchi · approved

Each value below links to the page it was read from, with the sentence it came from. Criteria Amazon OpenSearch Service does not publish are not listed.

Amazon OpenSearch Service pricing

3 criteria
Free tierNo
Sources (1) →
Entry paid plan$0.24 per OCU-hour for serverless, and that figure is quoted from a worked example on the page rather than from its price table — the table renders the rate as a template placeholder filled in by a pricing API. No monthly minimum is published for either model.
Sources (1) →
Pricing modelTwo models, billed differently. Provisioned instances are on-demand, reserved or under a savings plan. Serverless bills compute and storage separately, with compute measured in OpenSearch Compute Units that cover CPU, memory and I/O for indexing or querying.
Sources (1) →
  • Amazon OpenSearch Service Pricing ↗

    “For Serverless, you are charged for compute and storage separately. Compute capacity is measured in OpenSearch Compute Units (OCUs), which correspond to the CPU, memory, and I/O resources required to index data or run queries.”

    Read 2026-09-15 · official pricing · Report a correction

Observability

1 criteria
Self-hostableSupported
Sources (1) →

Vector

1 criteria
Hybrid search (vector + keyword)Supported, and billed as a separate workload: a vector search collection cannot share compute units with a search or time-series collection, even under the same KMS key.
Sources (1) →
  • Amazon OpenSearch Service Pricing ↗

    “A vector search collection cannot share OCUs with search and time series collections, even if the vector search collection uses the same KMS key as the search or time series collections.”

    Read 2026-09-15 · official pricing · Report a correction

Compliance

1 criteria
Dedicated infrastructureProvisioned deployments run on instances you size and reserve; serverless does not expose an instance at all and scales compute units instead.
Sources (1) →

When these numbers change, hear about it. Sources are re-checked monthly; a repricing goes out as a short note.

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Amazon OpenSearch Service in the news

Headlines from other publications, not checked by us · collected

Selected by a search on this company, refreshed weekly. Nobody here has verified these claims — where something material is confirmed, it is written into the page above with its source, the way every other fact on this site is.

Amazon OpenSearch Service pricing questions

How much does Amazon OpenSearch Service cost?

$0.24 per OCU-hour for serverless, and that figure is quoted from a worked example on the page rather than from its price table — the table renders the rate as a template placeholder filled in by a pricing API. No monthly minimum is published for either model.

Amazon OpenSearch Service Pricing · read

How does Amazon OpenSearch Service charge?

Two models, billed differently. Provisioned instances are on-demand, reserved or under a savings plan. Serverless bills compute and storage separately, with compute measured in OpenSearch Compute Units that cover CPU, memory and I/O for indexing or querying.

Amazon OpenSearch Service Pricing · read

Does Amazon OpenSearch Service have a free tier?

No.

Amazon OpenSearch Service Pricing · read

Can you self-host Amazon OpenSearch Service?

Yes.

Amazon OpenSearch Service Pricing · read

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Comments

Every page here is sourced and dated.