What are the key differences between Elasticsearch (ELK Stack) and OpenSearch?

Compare Elasticsearch (ELK Stack) and OpenSearch side by side on Lunoo to see detailed feature differences, AI scores, and expert analysis.

How are Elasticsearch (ELK Stack) and OpenSearch scored?

Elasticsearch (ELK Stack) has an AI score of 9.2/10 and OpenSearch has an AI score of 8.4/10. Scores are based on features, user satisfaction, and overall quality analysis.

Elasticsearch (ELK Stack) vs OpenSearch 2026 — Compared

Elasticsearch (ELK Stack)

OpenSearch

WINNER Elasticsearch (ELK Stack)

Elasticsearch (ELK Stack) edges ahead with a score of 9.2/10 compared to 8.4/10 for OpenSearch. While both are highly ra...

emoji_events WINNER

Elasticsearch (ELK Stack)

9.2 Excellent

Data Science Get Elasticsearch (ELK Stack) open_in_new

OpenSearch

8.4 Very Good

Web Hosting Get OpenSearch open_in_new

Elasticsearch (ELK Stack) From Free (self-hosted) or $95/mo (Elastic Cloud Basic) Free plan available

payments

OpenSearch Pricing not available

psychology AI Verdict

Elasticsearch (ELK Stack) edges ahead with a score of 9.2/10 compared to 8.4/10 for OpenSearch. While both are highly rated in their respective fields, Elasticsearch (ELK Stack) demonstrates a slight advantage in our AI ranking criteria. A detailed AI-powered analysis is being prepared for this comparison.

emoji_events Winner: Elasticsearch (ELK Stack)

verified Confidence: Low

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description Overview

Elasticsearch (ELK Stack)

The ELK Stack (Elasticsearch, Logstash, Kibana) remains the most popular open-source log analysis suite in the world. Elasticsearch provides a lightning-fast search engine, Logstash handles data ingestion and transformation, and Kibana offers a rich visualization layer. It is highly flexible and can be customized to fit almost any use case. While managing a large-scale Elasticsearch cluster can be...

OpenSearch

OpenSearch is the community-driven, open-source fork of Elasticsearch and Kibana. It was created to ensure that a truly open-source search and analytics suite remains available to the community. It offers all the features of the original Elastic Stack, including powerful full-text search, visualization, and alerting. OpenSearch is an excellent choice for organizations that want to avoid vendor loc...