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OpenSearch
OpenSearch is a powerful search and analytics engine built on Apache Lucene.
OpenSearch Dashboards
Our data visualization toolset is a flexible, fully integrated solution for visually exploring and querying your data.
OpenSearch Data Prepper
A server-side data collector designed to enrich, transform, and aggregate data for downstream analytics with OpenSearch.
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Machine Learning and AI
Vector Database
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View key performance metrics across different workloads
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OpenSearch Blog
Most Recent Articles
OpenSearch Approximation Framework
Jul 14
The new semantic field: Simplifying semantic search in OpenSearch
Jul 11
Advanced usage of the semantic field in OpenSearch
Jul 10
Making ingestion smarter: System ingest pipelines in OpenSearch
Jul 08
Reducing hybrid query latency in OpenSearch 3.1 with efficient score collection
Jun 27
Introduction to ML inference processors in OpenSearch: Review summarization a...
Jun 27
Announcing OpenSearch Data Prepper 2.12: Additional source and sinks for your...
Jun 26
Redline testing now available in OpenSearch Benchmark
Jun 23
Neural sparse models are now available in Hugging Face Sentence Transformers
Jun 11
Unlocking agentic AI experiences with OpenSearch
Jun 09
Featured Post
Building the future of OpenSearch together
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OpenSearchCons in 2024
North America (San Francisco): September 24-26
India (Bengaluru): June 26
Europe (Berlin): May 6-7
Documentation Library
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Build your OpenSearch solution using core tooling and visualizations.
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Measure performance metrics for your OpenSearch cluster.
OpenSearch Data Prepper
Filter, mutate, and sample your data for ingestion into OpenSearch.
Clients
Interact with OpenSearch from your application using language APIs.
OpenSearch Project Roadmap
Read our
blog
on 2024-2025 project development plan and beyond!
Fanit Kolchina
Fanit Kolchina
is a senior programmer writer at AWS focusing on OpenSearch.
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Blog Posts & Articles by Fanit Kolchina
Most Recent Blog Posts
technical post
The new semantic field: Simplifying semantic search in OpenSearch
technical post
Advanced usage of the semantic field in OpenSearch
Other Blog Posts
08 Jul 2025
Making ingestion smarter: System ingest pipelines in OpenSearch
27 Jun 2025
Introduction to ML inference processors in OpenSearch: Review summarization and semantic search
11 Jun 2025
Neural sparse models are now available in Hugging Face Sentence Transformers
30 May 2025
Enhanced log analysis with OpenSearch PPL: Introducing lookup, join, and subsearch
29 May 2025
Optimizing inference processors for cost efficiency and performance
23 May 2025
Introducing common filter support for hybrid search queries
20 May 2025
Do more with less: Save up to 3x on storage with derived vector source
19 May 2025
Finding a replacement for JSM in OpenSearch 3.0
19 May 2025
Intelligent troubleshooting using OpenSearch 3.0's plan-execute-reflect agent
15 May 2025
Introducing MCP in OpenSearch
14 May 2025
OpenSearch Project update: Performance progress in OpenSearch 3.0
28 Apr 2025
Introducing the z-score normalization technique for hybrid search
22 Apr 2025
What's new in OpenSearch Query Insights: Advanced grouping, dashboards, and historical analysis
17 Apr 2025
Building effective hybrid search in OpenSearch: Techniques and best practices
16 Apr 2025
Navigating pagination in hybrid queries with the pagination_depth parameter
10 Apr 2025
A practical guide to selecting HNSW hyperparameters
10 Apr 2025
The power of star-tree indexes: Supercharging OpenSearch aggregations
25 Feb 2025
Efficient large-scale filtering with bitmap filtering in OpenSearch
19 Feb 2025
Reduce costs with disk-based vector search
13 Feb 2025
From chaos to clarity: Revolutionizing OpenSearch clients and documentation using a unified API specification
12 Feb 2025
Introducing reciprocal rank fusion for hybrid search
05 Feb 2025
Enhancing OpenSearch anomaly detection: Reducing false positives through algorithmic improvements
31 Jan 2025
Instant DeepSeek: One-click activation with OpenSearch
30 Jan 2025
Zero to RAG: A quick OpenSearch vector database and DeepSeek integration guide
29 Jan 2025
OpenSearch now supports DeepSeek chat models
22 Jan 2025
Introducing OpenSearch JavaScript client 3.0
07 Jan 2025
Solving the cold start search problem in OpenSearch
27 Dec 2024
Streamline OpenSearch Dashboards development with VS Code
23 Dec 2024
OpenSearch simplified: The power of Application-Based Configuration (ABC) templates
18 Dec 2024
Deep dive: Enabling pluggable storage in the OpenSearch vector engine
27 Nov 2024
OpenSearch Project update: A look at performance progress through version 2.17
26 Nov 2024
Introducing byte vector support for Faiss in the OpenSearch vector engine
25 Nov 2024
Optimize your OpenSearch costs using binary vectors
19 Nov 2024
Boosting k-NN exact search performance
07 Nov 2024
Introducing OpenSearch nightly playgrounds: Preview new OpenSearch features live
31 Oct 2024
Gain deeper insights with OpenSearch Query Insights
30 Oct 2024
Introducing enhanced search functionality on OpenSearch.org
24 Oct 2024
Tiered caching in OpenSearch
22 Oct 2024
Streamline your OpenSearch development workflow on macOS with Apple silicon
17 Oct 2024
How sorting works in hybrid queries
08 Oct 2024
Optimizing query performance: The implementation of the OpenSearch index request cache
17 Sep 2024
Introducing OpenSearch 2.17
27 Aug 2024
Boosting vector search performance with concurrent segment search
21 Aug 2024
Improving search efficiency and accuracy with the newest v2 neural sparse models
05 Dec 2023
Improving document retrieval with sparse semantic encoders
04 Oct 2023
Improve search relevance with hybrid search, generally available in OpenSearch 2.10
08 Aug 2023
New custom automated style workflow
25 Jul 2023
Introducing extensions for OpenSearch
20 Jul 2023
New for OpenSearch Dashboards: Long-running operation notifications and component templates
13 Jun 2023
Use flat object in OpenSearch
23 May 2023
Searchable snapshots are generally available in OpenSearch 2.7
04 May 2023
Reduce compute costs and increase throughput with segment replication, generally available in OpenSearch 2.7
30 Mar 2023
The ABCs of semantic search in OpenSearch: Architectures, benchmarks, and combination strategies
15 Mar 2023
Getting started with multilayer maps in OpenSearch
13 Feb 2023
Building a semantic search engine in OpenSearch
09 Dec 2022
Launch highlight: Paginate with Point in Time
10 Oct 2022
Snapshot Management (SM): A new way to automate snapshots