Elasticsearchdense_vector fieldknn queryHNSW indexingembedding modelsintermediate30 min

Elasticsearch + vector search integration

Semantic similarity search, RAG pipelines, recommendation systems in AI agents

Prerequisites

  • →Elasticsearch 8.11+ cluster
  • →embedding generation tool (e.g.
  • →sentence-transformers)
  • →dims <=4096
  • →normalized vectors for cosine/dot_product.

Further reading