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Updated yesterday · Independent Analysis
ClickHouse vs OpenSearch
Capability Overview
ClickHousevs OpenSearch
4.5G2+0.3 vs OpenSearch
Only in ClickHouse
- ✦ Column-oriented storage
- ✦ Vectorized query execution
- ✦ Real-time ingestion
✓ Free planFrom $66.52/moN/A users · est.
OpenSearchvs ClickHouse
4.2G2-0.3 vs ClickHouse
Only in OpenSearch
- ✦ Full-text search
- ✦ k-NN vector search
- ✦ SQL query support
✓ Free planN/A users · est.
Quick VerdictIndependent Analysis
ClickHouse and OpenSearch are both Databases tools. Compare features, pricing, and ratings below to find the best fit for your team.
When to Choose ClickHouse vs OpenSearch
The question that matters: “In what situation will I regret choosing A over B after 3 months?”
Scenario: Real-time Product Analytics
ClickHouse
Real-time Product Analytics
Ingest clickstream events via Kafka, query 100B rows in under 1 second for live dashboards
OpenSearch
AWS-Native Log Analytics
Route CloudWatch logs to OpenSearch Service via Kinesis for centralized log search without leaving AWS
Scenario: Log Analytics Pipeline
ClickHouse
Log Analytics Pipeline
Store and query server logs at petabyte scale with 10x better compression than Elasticsearch
OpenSearch
Security Analytics
Correlate AWS CloudTrail and VPC flow logs in OpenSearch to detect anomalous access patterns in near-real-time
ClickHouse Unique Strength
Ad Tech Reporting
Count unique users and calculate click-through rates across billions of ad impressions in milliseconds
→ Choose ClickHouse if this scenario applies to you. OpenSearch doesn't offer a comparable solution.
ClickHouse Unique Strength
Time-series Monitoring
Replace InfluxDB with ClickHouse for metrics storage, gaining SQL query support and better compression
→ Choose ClickHouse if this scenario applies to you. OpenSearch doesn't offer a comparable solution.
OpenSearch Unique Strength
Elasticsearch Migration
Migrate from Elasticsearch to OpenSearch with API-compatible clients and keep the same application code
→ Choose OpenSearch if this scenario applies to you. ClickHouse doesn't offer a comparable solution.
OpenSearch Unique Strength
Vector Search for RAG
Store document embeddings and run hybrid text+vector search with the k-NN plugin to improve retrieval accuracy
→ Choose OpenSearch if this scenario applies to you. ClickHouse doesn't offer a comparable solution.
Pricing Comparison & PlansHigh· Verified Jun 28, 2026
ClickHouse Plans
Free tier available
Open Source
Open SourceBest for: This free plan is ideal for users who prefer self-hosting and managing their own ClickHouse deployments
- ✓Self-hosted deployment
- ✓Open-source columnar database
- ✓Real-time analytics on massive datasets
- ✓No cost for software
View on vendor site
MOST POPULARBasic
$67/moBest for: Testing / starter projects
- ✓1 replica x 8 GiB RAM, 2 vCPU
- ✓500 GB compressed data
- ✓500 GB backup data
- ✓10 GB public internet egress data transfer
- ✓Expert support with 1 business day response time
View on vendor site
Scale
$499/moBest for: Production + data at scale
- ✓Unlimited storage
- ✓Configurable memory
- ✓Compute-compute separation
- ✓2+ availability zones
- ✓Expert support with 1 hour response time 24x7 for Severity 1 issues
View on vendor site
Enterprise
Contact SalesBest for: Very large scale + enterprise
- ✓SAML Single sign-on authentication (SSO)
- ✓Private regions
- ✓Manual vertical scaling for custom profiles
- ✓Enterprise support with 30 min response time for Severity 1 issues
- ✓Named Lead Support Engineer
View on vendor site
Capability Breakdown
3 differences found across 14 standardized features
Feature
ClickHouse
OpenSearch
Column-oriented
✓
✗
Full-Text Search
✗
✓
OLAP Optimized
✓
✗
Total (raw)
14
14
ClickHouse Features
- •Column-oriented storage
- •Vectorized query execution
- •Real-time ingestion
- •Kafka integration
- •SQL support
- •Distributed tables
- •Compression (LZ4/ZSTD)
- •Approximate query functions
- •Materialized views
- •Replicated tables
- •JSON support
- •Geospatial functions
- •Time-series optimizations
- •REST and native protocols
OpenSearch Features
- •Full-text search
- •k-NN vector search
- •SQL query support
- •Distributed sharding
- •ML inference nodes
- •Security plugin (built-in)
- •Observability dashboards
- •Anomaly detection
- •Index rollups
- •REST API
- •Cross-cluster replication
- •Snapshot to S3
- •ISM (Index State Management)
- •Alerting plugin
Strengths & Limitations
Evaluative strengths and weaknesses: not feature lists
Pros
- +Scans billions of rows per second via vectorized query execution
- +Materialized Views for real-time, incremental data aggregation
- +High-ratio data compression (LZ4, ZSTD) drastically cuts storage costs
- +Natively handles semi-structured data (JSON, maps, arrays) at scale
- +Full-featured, production-ready open-source core; no vendor lock-in
Cons
- −No multi-row transactions (ACID); not suitable for OLTP workloads
- −Point updates and deletes are expensive, batch-oriented operations
- −Limited full-text search capabilities compared to dedicated search engines
- −Operational complexity for self-hosted clusters (sharding, replication)
- −Steep learning curve for its non-standard SQL dialect and functions
Pros
- +Apache 2.0 license - no SSPL restrictions
- +API-compatible with Elasticsearch for easy migration
- +Built-in security plugin at no extra cost vs Elastic
Cons
- −Feature development lags Elasticsearch in some areas
- −AWS-managed version has less flexibility than self-managed Elastic
At a Glance
User Rating
4.5/5vs4.2/5
ClickHouse
▲
OpenSearch
Starting Price
$66.52/movsPay-per-use
ClickHouse
▲
OpenSearch
Feature Count
14 featuresvs14 features
ClickHouse
OpenSearch
User Base
0vs0
ClickHouse
OpenSearch
ClickHouse · Price & Data SyncLast verified: June 28, 2026 · CE-DB-2026W23-A00E90 · ✓ Pricing updated Jun 7, 2026
OpenSearch · Price & Data SyncLast verified: June 28, 2026 · CE-DB-2026W22-471E0C · ✓ Pricing updated May 30, 2026
Recent Price History
ClickHouse
ClickHouse updated "Scale" from Custom to $499.38/mo
Price change · Jun 7, 2026
ClickHouse
ClickHouse updated "Basic" from Custom to $66.52/mo
Price change · Jun 7, 2026
ClickHouse
ClickHouse removed the "Cloud Dedicated" plan
Plan removed · May 30, 2026
ClickHouse
ClickHouse removed the "Cloud Production" plan
Plan removed · May 30, 2026
ClickHouse
ClickHouse removed the "Cloud Development" plan
Plan removed · May 30, 2026
OpenSearch
OpenSearch removed the "Amazon OpenSearch Service" plan
Plan removed · May 30, 2026
OpenSearch
OpenSearch removed the "AWS OpenSearch Service" plan
Plan removed · May 21, 2026
OpenSearch
OpenSearch removed the "Open Source" plan
Plan removed · May 21, 2026
OpenSearch
OpenSearch added a new "Amazon OpenSearch Service" plan
Plan added · May 21, 2026
OpenSearch
OpenSearch added a new "Open Source (Self-Hosted)" plan at $0/mo
Plan added · May 21, 2026
Frequently Asked Questions
Related Comparisons
ClickHouseFree · from $66.52/mo
OpenSearchFree planSources & Data Trail · ClickHouse
- 1.Official Pricing Page·Source of verified tiers(Checked: 2026-06-28)
- 2.Official Website·Official vendor website
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Sources & Data Trail · OpenSearch
- 1.Official Website·Official vendor website
- 2.G2·G2 verified reviews · 4.2/5 · 101 reviews
- 3.PeerSpot·PeerSpot enterprise peer reviews