Elasticsearch vs OpenSearch

Side-by-side — pricing, strengths, tradeoffs, and fit.

Elasticsearch

Distributed search and analytics engine for full-text, logs, and faceted search at scale.

OpenSearch

Open-source, Apache-2.0 fork of Elasticsearch for search and analytics.

At a glance

Open SourceFree TierEnterprise
● Established·From $95/mo (Elastic Cloud)
Open SourceFree TierEnterprise
● Established·From $0 self-hosted

Overview

One-liner

Distributed search and analytics engine for full-text, logs, and faceted search at scale.

One-liner

Open-source, Apache-2.0 fork of Elasticsearch for search and analytics.

Maturity

Established

Maturity

Established

Open source

✓ Yes

Open source

✓ Yes

Pricing

Free tier

✓ Available

Self-managed basic tier free; Elastic Cloud trial

Free tier

✓ Available

Fully open source (Apache-2.0)

Starts at

$95/mo (Elastic Cloud)

Starts at

$0 self-hosted

Model

Usage-based

Model

Flat rate

Enterprise

✓ Available

Enterprise

✓ Available

Best for

✓ Best for

Enterprise search with faceting/analyticsAggregations and large-scale relevance
Log and observability analyticsDoubles as a logging backend

✓ Best for

Teams wanting open-licensed ElasticApache-2.0 with AWS managed option
Search + log analytics on AWSNative Amazon OpenSearch Service

Not ideal for

✕ Not for

—

✕ Not for

—

Strengths

↑ Strengths

Powerful, scalable search + analytics
Mature ecosystem (Elastic Stack)
Handles logs and observability too

↑ Strengths

Truly open license (Apache-2.0)
AWS-backed managed option
Familiar Elasticsearch APIs

Weaknesses

↓ Weaknesses

Operationally heavy
Costly at scale

↓ Weaknesses

Operationally heavy like Elastic
Feature drift from Elastic
Full Elasticsearch profile →Full OpenSearch profile →