# Elasticsearch vs OpenSearch

**Leader by vioscaleAI score:** Elasticsearch

| Attribute | Elasticsearch | OpenSearch |
|---|---|---|
| **vioscaleAI score** | 73 (58% (medium)) | 54.3 (47% (low)) |
| activity.commits_last_30d | 100 | 100 |
| adoption.dependent_repos | 18,551 | 223 |
| adoption.github_stars | 78,195 | 13,873 |
| content.faq | `[{"answer":"A search and analytics platform that ingests, stores, and searches structured, unstructured, and vector data in real time. Supports full-text search, vector search, observability analytics, and security event analysis through a unified REST API and query language. It is indexed under Search Engines.","source":"https://www.elastic.co/pricing/cloud-hosted","question":"What is Elasticsearch?","confidence":0.6},{"answer":"Elasticsearch is a paid product; published pricing starts at $99 per month. It is sold across 4 plans (Standard, Gold, Platinum and Enterprise). There is no free tier. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.elastic.co/pricing/cloud-hosted","question":"How much does Elasticsearch cost?","confidence":0.6},{"answer":"Elasticsearch supports the web, Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.elastic.co/pricing/cloud-hosted","question":"What platforms does Elasticsearch support?","confidence":0.6},{"answer":"Yes. Elasticsearch can be deployed cloud / SaaS, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.elastic.co/pricing/cloud-hosted","question":"Can Elasticsearch be self-hosted?","confidence":0.6},{"answer":"We have confirmed 32 integrations for Elasticsearch, including Slack, Jira, ServiceNow, PagerDuty, Microsoft Teams, IBM Resilient, xMatters and GitHub, plus 24 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.elastic.co/pricing/cloud-hosted","question":"What does Elasticsearch integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Elasticsearch. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Elasticsearch not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.elastic.co/trust/ai-data-faq","question":"What security certifications does Elasticsearch have?","confidence":0.7},{"answer":"Elasticsearch is available worldwide. Its primary market is the United States.","source":"https://www.elastic.co/pricing/cloud-hosted","question":"Where is Elasticsearch available?","confidence":0.75}]` | `[{"answer":"An open-source search and observability suite that enables enterprises to search, analyze, and monitor unstructured data. It combines full-text search, machine learning, real-time log analysis, and security analytics capabilities in an integrated platform. It is indexed under Search Engines.","source":"https://opensearch.org","question":"What is OpenSearch?","confidence":0.6},{"answer":"OpenSearch is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://opensearch.org","question":"Is OpenSearch free to use?","confidence":0.6},{"answer":"OpenSearch supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://opensearch.org","question":"What platforms does OpenSearch support?","confidence":0.6},{"answer":"Yes. OpenSearch can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://opensearch.org","question":"Can OpenSearch be self-hosted?","confidence":0.6},{"answer":"Yes. OpenSearch is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/opensearch-project/OpenSearch","question":"Is OpenSearch open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A search platform that distributes data across multiple nodes to handle large-scale indexing and retrieval through standard web APIs. | An Apache 2.0-licensed, vendor-neutral search and analytics platform that enables indexing, searching, visualization, and analysis of data across applications and infrastructure. |
| features.capabilities | `{"hosting":"both","faceting":"yes","query_dsl":"ES|QL","data_model":"document","deployment":"self_hosted","geo_search":true,"distributed":"sharded","replication":true,"sql_support":true,"index_engine":"lucene","licence_class":"source_available","log_analytics":true,"managed_cloud":true,"multi_tenancy":true,"vector_search":"hybrid_fusion","typo_tolerance":"built_in","full_text_search":true,"relevance_tuning":"ltr","realtime_indexing":"near_real_time","horizontal_scaling":true}` | `{"query_dsl":"SQL, PPL","deployment":"self_hosted","geo_search":false,"distributed":"sharded","licence_class":"source_available","log_analytics":true,"multi_tenancy":true,"vector_search":"hybrid_fusion","relevance_tuning":"bm25_only","realtime_indexing":"near_real_time"}` |
| integrations.count | 350 | 1 |
| integrations.list | `[{"name":"Slack"},{"name":"Jira"},{"name":"ServiceNow"},{"name":"PagerDuty"},{"name":"Microsoft Teams"},{"name":"IBM Resilient"},{"name":"xMatters"},{"name":"GitHub"},{"name":"Jina AI"},{"name":"NVIDIA AI"},{"name":"Prometheus"},{"name":"Grafana"},{"name":"AWS Bedrock"},{"name":"Sarvam AI"},{"name":"Google ADK"},{"name":"LlamaParse"},{"name":"Mistral"},{"name":"Elastic Agent"},{"name":"Beats"},{"name":"Logstash"},{"name":"Filebeat"},{"name":"Metricbeat"},{"name":"Heartbeat"},{"name":"Webhooks"},{"name":"S3"},{"name":"OpenAI","native":true,"category":"ai","direction":"bidirectional"},{"name":"Amazon Bedrock","native":true,"category":"ai","direction":"bidirectional"},{"name":"Azure OpenAI Service","native":true,"category":"ai","direction":"bidirectional"},{"name":"NVIDIA","native":true,"category":"ai","direction":"bidirectional"},{"name":"Okta","native":true,"category":"auth","direction":"inbound"},{"name":"Auth0","native":true,"category":"auth","direction":"inbound"},{"name":"AWS S3","native":true,"category":"storage","direction":"bidirectional"},{"name":"Kubernetes","native":true,"category":"infrastructure","direction":"bidirectional"},{"name":"Terraform","native":true,"category":"infrastructure","direction":"outbound"},{"name":"GitHub Copilot","native":true,"category":"ai","direction":"bidirectional"},{"name":"Anthropic","native":false,"category":"ai","direction":"bidirectional"},{"name":"LlamaIndex","category":"ai"},{"name":"Red Hat","category":"infrastructure"},{"name":"Alibaba Cloud","category":"cloud"},{"name":"IBM watsonx","category":"ai"},{"name":"Cohere","category":"ai"},{"name":"LangChain","category":"ai"},{"name":"Claude","category":"ai"}]` | `[{"name":"Data Prepper"}]` |
| language.primary | Java | Java |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"mac":true,"web":true,"linux":true,"windows":true}` | `{"web":true}` |
| pricing | `{"type":"subscription","plans":[{"free":false,"name":"Standard","summary":"$99/month","features":["Distributed Elasticsearch across AWS, Azure, GCP","ES|QL query language and APIs","Default monitoring and AutoOps","Alerting with detection engine","Malware prevention","Cloud security posture management","APM, logging, metrics","Synthetic monitoring (limited)","Universal Profiling","LLM observability","Limited support (3-business day response)"],"components":[{"kind":"fixed","amount":99,"period":"month","currency":"USD"}],"description":"Entry-level plan with distributed Elasticsearch across cloud providers, API access, monitoring, security alerts, and observability basics.","contactSales":false},{"free":false,"name":"Gold","summary":"$114/month","features":["All Standard features","Reporting","Third-party alerting actions","Watcher","Multi-stack monitoring","Enterprise Search","External detection notifications","Base support (business hours, 1-day response for high)"],"components":[{"kind":"fixed","amount":114,"period":"month","currency":"USD"}],"description":"Includes Standard features plus reporting, enterprise search, advanced security, and base support with business hours availability.","contactSales":false},{"free":false,"name":"Platinum","summary":"$131/month with SLA","features":["All Gold features","Machine learning (anomaly detection, supervised learning)","Vector search with ELSER and e5 models","Cross-cluster replication","Log categorization","Service maps, tail-based sampling","APM correlations","ML-powered SIEM rules","Enhanced support (24/7, 1-hour urgent response)","99.95% uptime SLA"],"components":[{"kind":"fixed","amount":131,"period":"month","currency":"USD"}],"description":"Includes Gold features plus machine learning, advanced security, vector search with ML models, semantic reranking, and 24/7 support.","contactSales":false},{"free":false,"name":"Enterprise","summary":"$184/month","features":["All Platinum features","Searchable snapshots in cold/frozen tiers","Elastic Maps Server","Cross-cluster search with ES|QL","ES|QL Data Federation (query S3 directly)","GPU inference with Elastic Inference Service","Elastic Agent Builder with LLM","AI-powered dashboard creation","Elastic Workflows (automation)","SAML SSO","AI Playground for RAG","Inference Service Management","Semantic reranking with ML models","Learn-to-Rank personalization","Storage optimization (DiskBBQ)","Attack Discovery with agentic investigation","Premium support (30-minute urgent response)","Cloud workload protection"],"components":[{"kind":"fixed","amount":184,"period":"month","currency":"USD"}],"description":"Includes Platinum features plus searchable snapshots, GPU inference, AI-driven workflows, agent building, data federation, and premium support.","contactSales":false}],"addOns":[{"name":"Synthetic Monitoring - Browser Tests","components":[{"per":{"qty":1,"unit":"test run"},"kind":"metered","amount":0.0123,"currency":"USD"}]},{"name":"Synthetic Monitoring - Lightweight Tests","components":[{"kind":"fixed","amount":28,"period":"month","currency":"USD"}]}],"summary":"From $99/month. Free 14-day trial available.","currency":"USD","freeTier":false,"sourceUrl":"https://www.elastic.co/pricing/cloud-hosted","retrievedAt":"2026-09-07T13:11:22.839Z","freeTrialDays":14,"startingPrice":{"amount":99,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"open_source","sourceUrl":"https://opensearch.org","retrievedAt":"2026-10-15T20:26:16.076Z"}` |
| pricing.free_tier | no | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | high | free |
| pricing.starting_price | `{"amount":99,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| release.cadence_days | 1 | 29 |
| release.history | `[{"url":"https://github.com/elastic/elasticsearch/releases/tag/v8.19.22","date":"2026-09-23T15:20:20Z","type":"stable","version":"v8.19.22"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.5.4","date":"2026-09-15T18:19:18Z","type":"stable","version":"v9.5.4"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.4.7","date":"2026-09-15T18:19:34Z","type":"stable","version":"v9.4.7"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.5.3","date":"2026-09-03T10:08:41Z","type":"stable","version":"v9.5.3"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.4.6","date":"2026-09-01T12:51:12Z","type":"stable","version":"v9.4.6"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v8.19.21","date":"2026-09-01T12:53:43Z","type":"stable","version":"v8.19.21"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.5.2","date":"2026-08-20T16:44:04Z","type":"stable","version":"v9.5.2"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.5.1","date":"2026-08-11T17:58:01Z","type":"stable","version":"v9.5.1"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.4.5","date":"2026-08-11T17:57:54Z","type":"stable","version":"v9.4.5"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v8.19.20","date":"2026-08-11T18:24:43Z","type":"stable","version":"v8.19.20"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.5.0","date":"2026-08-04T11:46:37Z","type":"stable","version":"v9.5.0"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.4.4","date":"2026-07-21T12:56:20Z","type":"stable","version":"v9.4.4"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.3.8","date":"2026-07-21T12:56:46Z","type":"stable","version":"v9.3.8"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v8.19.19","date":"2026-07-21T13:28:17Z","type":"stable","version":"v8.19.19"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v8.19.18","date":"2026-06-30T16:43:41Z","type":"stable","version":"v8.19.18"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.3.7","date":"2026-06-30T16:47:02Z","type":"stable","version":"v9.3.7"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.4.3","date":"2026-06-30T14:30:13Z","type":"stable","version":"v9.4.3"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v8.19.17","date":"2026-06-23T13:59:04Z","type":"stable","version":"v8.19.17"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.3.6","date":"2026-06-23T14:09:56Z","type":"stable","version":"v9.3.6"},{"url":"https://github.com/elastic/elasticsearch/releases/tag/v9.4.2","date":"2026-05-28T14:59:44Z","type":"stable","version":"v9.4.2"}]` | `[{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.9.0","date":"2026-09-29T21:54:18Z","type":"stable","version":"3.9.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.8.0","date":"2026-08-05T17:20:33Z","type":"stable","version":"3.8.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/2.19.6","date":"2026-07-06T18:22:45Z","type":"stable","version":"2.19.6"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.7.0","date":"2026-06-09T23:41:20Z","type":"stable","version":"3.7.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.6.0","date":"2026-04-07T22:06:23Z","type":"stable","version":"3.6.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/2.19.5","date":"2026-05-13T17:52:18Z","type":"stable","version":"2.19.5"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.5.0","date":"2026-02-12T15:40:44Z","type":"stable","version":"3.5.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.4.0","date":"2025-12-17T07:57:13Z","type":"stable","version":"3.4.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/2.19.4","date":"2025-11-06T21:45:44Z","type":"stable","version":"2.19.4"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.3.2","date":"2025-10-30T20:34:44Z","type":"stable","version":"3.3.2"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.3.1","date":"2025-10-22T18:32:00Z","type":"stable","version":"3.3.1"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.3.0","date":"2025-10-14T21:22:10Z","type":"stable","version":"3.3.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.2.0","date":"2025-08-19T23:45:42Z","type":"stable","version":"3.2.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/2.19.3","date":"2025-08-21T21:09:15Z","type":"stable","version":"2.19.3"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.1.0","date":"2025-06-24T22:18:26Z","type":"stable","version":"3.1.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.0.0","date":"2025-05-06T21:58:50Z","type":"stable","version":"3.0.0"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.0.0-beta1","date":"2025-04-23T00:16:18Z","type":"stable","version":"3.0.0-beta1"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/2.19.2","date":"2025-08-21T21:11:35Z","type":"stable","version":"2.19.2"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/3.0.0-alpha1","date":"2025-03-18T22:31:54Z","type":"stable","version":"3.0.0-alpha1"},{"url":"https://github.com/opensearch-project/OpenSearch/releases/tag/2.19.1","date":"2025-02-27T23:31:01Z","type":"stable","version":"2.19.1"}]` |
| reliability.sla_pct | 99.95 | - |
| reliability.status_page | yes | - |
| security.disclosure_policy | - | yes |
| security.gdpr | yes | - |
| security.scorecard | 6.4 | - |
| security.trust_center | https://www.elastic.co/legal/trade-compliance | - |
| security.vulnerabilities | `{"count":45,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.elasticsearch%3Aelasticsearch&per_page=100","last_12m":2,"max_severity":"HIGH"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.opensearch.client%3Aopensearch-rest-high-level-client&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Search Engines)

| Capability | Elasticsearch | OpenSearch |
|---|:--:|:--:|
| **Deployment** |  |  |
| Deployment | Self-hosted | Self-hosted |
| **Architecture** |  |  |
| Index engine | Lucene | - |
| **Query** |  |  |
| Query DSL (JSON / SQL / params / GraphQL) | ES|QL | SQL, PPL |
| Faceting & filtering | Yes | - |
| Geo search | ✓ | ✗ |
| **Relevance** |  |  |
| Typo tolerance / fuzzy | Built-in | - |
| Relevance tuning | Learning-to-rank | BM25 only |
| **Vector** |  |  |
| Vector / hybrid search | Dense + lexical fusion | Dense + lexical fusion |
| **Scale** |  |  |
| Distributed / horizontal scale | Sharded | Sharded |
| Multi-tenancy (indexes / collections / tenants) | ✓ | ✓ |
| **Ingest** |  |  |
| Real-time indexing | Near-real-time | Near-real-time |
| **Workload** |  |  |
| Log / analytics workload | ✓ | ✓ |
| **Licensing** |  |  |
| Licence class | Source-available (SSPL / Elastic) | Source-available (SSPL / Elastic) |

*Source: vioscaleAI. Generated 2026-10-16T20:13:13.276Z. "-" = undocumented, not absent.*