Blog

Recipes to vectors: Building a hybrid search app with OpenSearch

Apr 25, 2025 • technical-posts

Ever wondered if OpenSearch can double as a vector database? Spoiler: it absolutely can. Whether you’re building a modern search experience, exploring hybrid retrieval, or just curious about embeddings, OpenSearch...

OpenSearch version 3.0: New features, breaking changes from Apache Lucene 10, and what to expect

Apr 24, 2025 • technical-post

OpenSearch version 3.0: New features, breaking changes from Apache Lucene™ 10, and what to expect

What's new in OpenSearch Query Insights: Advanced grouping, dashboards, and historical analysis

Apr 22, 2025 • technical-posts

OpenSearch Query Insights gives you essential visibility into how search queries perform, helping you understand how queries run and how they use cluster resources. Since introducing Query Insights, we’ve aimed...

Announcing OpenSearch Data Prepper 2.11: Supercharged OpenTelemetry and even more sources

Apr 17, 2025 • releases

Data Prepper 2.11.0 offers better OpenTelemetry support and new integrations with external sources.

Building effective hybrid search in OpenSearch: Techniques and best practices

Apr 17, 2025 • technical-posts

OpenSearch provides a wide range of capabilities to support modern search needs, including traditional keyword-based techniques like lexical search using BM25 and more advanced methods like semantic and hybrid search....

Navigating pagination in hybrid queries with the pagination_depth parameter

Apr 16, 2025 • technical-posts

OpenSearch 2.10 introduced hybrid queries, which have become a popular choice for improving semantic search relevance. By combining full-text lexical search with semantic search, hybrid queries deliver better results than...

A practical guide to selecting HNSW hyperparameters

Apr 10, 2025 • technical-posts

Vector search plays a crucial role in many machine learning (ML) and data science pipelines. In the context of large language models (LLMs), vector search powers retrieval-augmented generation (RAG), a...

The power of star-tree indexes: Supercharging OpenSearch aggregations

Apr 10, 2025 • technical-posts

Aggregations in OpenSearch play a critical role in enabling real-time data analysis and visualization. They are extensively used in OpenSearch Dashboards to create interactive charts and dashboards, providing insights into...

Boost OpenSearch vector search performance with Intel AVX-512

Apr 08, 2025 • technical-posts

Introduced in OpenSearch 2.18, Intel Advanced Vector Extensions 512 (Intel AVX-512) is a set of new instructions that can accelerate vector workload performance. Vector search benchmarks using OpenSearch Benchmark showed...

Generative AI: OpenSearch's journey as an open-source search engine

Mar 26, 2025 • community

The rise of generative AI has transformed search technology, evolving it from simple keyword-based retrieval to intelligent, multimodal search experiences powered by deep learning. In this keynote address at the...

OpenSearch as a SIEM Solution

Mar 20, 2025 • technical-post

OpenSearch is a scalable open-source search and analytics platform that can serve as the core of a Security Information and Event Management (SIEM) system. OpenSearch can centralize logs from diverse...

GPU-accelerated vector search in OpenSearch: A new frontier

Mar 18, 2025 • technical-posts

OpenSearch’s adoption as a vector database has grown significantly with the rise of generative AI applications. Vector search workloads are scaling from millions to billions of vectors, making traditional CPU-based...

Solution Provider Highlight - Enhancing anomaly detection in Amazon OpenSearch Service: A customer success story

Mar 07, 2025 • technical-posts, community

As organizations increasingly rely on cloud services, monitoring and detecting anomalies in system behavior has become crucial for maintaining reliable operations. In this post, we’ll explore recent improvements to the...

Tracking the evolution of OpenSearch performance

Mar 06, 2025 • community

Trail of Bits, an independent research and consulting company, recently completed a detailed analysis of OpenSearch performance. Read the blog post and detailed analysis to learn about key performance metrics...

Efficient large-scale filtering with bitmap filtering in OpenSearch

Feb 25, 2025 • technical-posts

OpenSearch is a powerful open-source search and analytics engine that enables you to efficiently search and filter large datasets. A common search pattern involves filtering documents based on whether a...