Vector Database

17% faster search, zero config: auto-calibrating vector quantization in Elasticsearch

Automatic calibration at merge time picks vector quantization parameters for each segment by predicting recall from a small sample. Here's how we built it into Elasticsearch's merge path.

17% faster search, zero config: auto-calibrating vector quantization in Elasticsearch
4 NVIDIA AI tasks, 1 Elasticsearch API: Embeddings, chat, completion, and rerank

4 NVIDIA AI tasks, 1 Elasticsearch API: Embeddings, chat, completion, and rerank

Set up NVIDIA hosted models in Elasticsearch with one API key and a model ID. No custom integration code needed.

How Elasticsearch auto-tunes vector quantization to hit your recall target

How Elasticsearch auto-tunes vector quantization to hit your recall target

Learn the geometric model that lets Elasticsearch predict recall with R² > 0.98 accuracy and auto-select vector quantization parameters from a small data sample.

A picture is worth 1.5x the words: What we learned benchmarking product search embeddings

A picture is worth 1.5x the words: What we learned benchmarking product search embeddings

We benchmarked two embedding models on 5,000 real products and found that combining image and text beats either alone by up to 50%. Here's the data and the model that won.

The disk that never woke up: what actually decided our Qdrant vector search benchmark rematch

July 13, 2026

The disk that never woke up: what actually decided our Qdrant vector search benchmark rematch

On the same hardware, Elasticsearch and Qdrant land in the same range at 56 QPS. The io_uring disk scorer and memory claims turned out to be the two things that mattered least.

How BBQ shrinks Jina v5 embeddings by 29x without losing recall in Elasticsearch

July 10, 2026

How BBQ shrinks Jina v5 embeddings by 29x without losing recall in Elasticsearch

A hands-on test comparing BBQ and float32 vector indices in Elasticsearch, measuring memory, disk and recall@10 across five languages.

Short queries, formal documents: how HyDE improved semantic search precision by 50% in Elasticsearch

July 7, 2026

Short queries, formal documents: how HyDE improved semantic search precision by 50% in Elasticsearch

HyDE boosts semantic search precision and recall by 50% on short queries. Here's how to implement it in Elasticsearch with the Inference API and semantic_text.

A simdvec deep-dive: How Elasticsearch uses neural-net and video-codec CPU instructions for vector search

A simdvec deep-dive: How Elasticsearch uses neural-net and video-codec CPU instructions for vector search

Four ways Elasticsearch's vector search engine reuses neural-network, video-codec and cryptography CPU instructions for up to 6x speedups; with the math, the failed attempts and the benchmarks.

Elasticsearch DiskBBQ delivers 7x faster vector search than Qdrant on network-attached storage

June 24, 2026

Elasticsearch DiskBBQ delivers 7x faster vector search than Qdrant on network-attached storage

Elasticsearch DiskBBQ achieves up to 7x higher vector search throughput than Qdrant at comparable recall on network-attached storage. Explore the benchmark methodology and full results.

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