OpenSearch and Large Language Models
In this blog post, we provide a comprehensive overview of the features based on large language models (LLM) currently supported by OpenSearch.
Ilaria Petreti
November 24, 2025
OpenSearch Semantic Sentence Highlighting Explained
Explore Semantic Highlighting feature in OpenSearch v3.0, how it works, and how it compares to the Sease Solr Neural Highlighting plugin.
Nazerke Seidan
September 8, 2025
Search Limitations and Workarounds in OpenSearch
This blog post focuses on limitations in OpenSearch v2.17 during the implementation of search features and proposes practical workarounds.
Nazerke Seidan
July 14, 2025
OpenSearch Neural Sparse Search Tutorial
This blog post will focus on exploring Neural Sparse Search, an alternative approach to neural text search.
Ilaria Petreti
July 16, 2024
OpenSearch Neural Search Tutorial: Hybrid Search
The new implementation of hybrid search (from OpenSearch 2.10), allows for the combination and normalization of query relevance scores.
Ilaria Petreti
April 3, 2024
OpenSearch KNN Plugin Tutorial
It explores the OpenSearch k-NN Plugin, which offers 3 different approaches for retrieving the k-nearest neighbors from a vector index.
Ilaria Petreti
January 18, 2024
OpenSearch Neural Search Plugin Tutorial: Additional Useful Tools
The second part of OpenSearch Neural Search Plugin Tutorial for version 2.4.0 where additional tools can be found that might be useful
Ilaria Petreti
January 9, 2024
OpenSearch Neural Search Plugin Tutorial
This blog post explores the new OpenSearch neural search plugin, given a detailed description of it through our end-to-end experience.
Anna Ruggero
December 19, 2022
Elasticsearch Disk Space Issue and Rollover Solution
What is a cluster_block_exception in Elasticsearch? How to solve it? Let’s define an index management policy with a rollover strategy.
Anna Ruggero
June 7, 2022
We are Sease, an Information Retrieval Company based in London, focused on providing R&D project guidance and implementation, Search consulting services, Training, and Search solutions using open source software like Apache Lucene/Solr, Elasticsearch, OpenSearch and Vespa.
