https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Sat, 16 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-2026-pinecone-weaviate-milvus-qdrant-chroma-lancedb-pgvector-vespa-turbopuffer-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-2026-pinecone-weaviate-milvus-qdrant-chroma-lancedb-pgvector-vespa-turbopuffer-deep-dive.en The 2026 vector database market is a Cambrian explosion. Pinecone serverless, Weaviate 1.27, Milvus 2.5, Qdrant 1.13, Chroma 0.5, LanceDB 0.20, pgvector 0.8, Vespa, Turbopuffer — over ten camps competing with their own opinions. From index algorithms like HNSW and DiskANN, IVF, PQ, and SQ to quantization and multi-vector retrieval — this guide covers which DB to choose for which workload, with real prices and operational experience. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) englishvector-databasepineconeweaviatemilvusqdrantchromalancedbpgvectorvespaturbopufferragembeddings2026deep-dive https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-2026-pinecone-weaviate-milvus-qdrant-chroma-lancedb-pgvector-vespa-turbopuffer-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-2026-pinecone-weaviate-milvus-qdrant-chroma-lancedb-pgvector-vespa-turbopuffer-deep-dive.ja 2026年のベクトルデータベース市場はカンブリア爆発そのものだ。Pinecone serverless、Weaviate 1.27、Milvus 2.5、Qdrant 1.13、Chroma 0.5、LanceDB 0.20、pgvector 0.8、Vespa、Turbopufferまで — 10以上の陣営がそれぞれの意見を携えて市場に乗り込んできた。HNSWやDiskANN、IVF・PQ・SQのようなインデックスアルゴリズムから、quantizationとmulti-vector retrievalまで、どのワークロードにどのDBを選ぶべきかを実価格と運用経験を含めて一気に整理する。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) 日本語vector-databasepineconeweaviatemilvusqdrantchromalancedbpgvectorvespaturbopufferragembeddings2026deep-dive https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-2026-pinecone-weaviate-milvus-qdrant-chroma-lancedb-pgvector-vespa-turbopuffer-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-2026-pinecone-weaviate-milvus-qdrant-chroma-lancedb-pgvector-vespa-turbopuffer-deep-dive 2026년 벡터 데이터베이스 시장은 캄브리아기 폭발 그 자체다. Pinecone serverless, Weaviate 1.27, Milvus 2.5, Qdrant 1.13, Chroma 0.5, LanceDB 0.20, pgvector 0.8, Vespa, Turbopuffer까지 — 10개 이상의 진영이 각자의 의견을 들고 시장에 들어왔다. HNSW와 DiskANN, IVF·PQ·SQ 같은 인덱스 알고리즘부터 quantization과 multi-vector retrieval까지, 어떤 워크로드에 어떤 DB를 골라야 하는지 실제 가격·운영 경험을 포함해 한 번에 정리한다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) vector-databasepineconeweaviatemilvusqdrantchromalancedbpgvectorvespaturbopufferragembeddings2026deep-dive https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-pinecone-weaviate-qdrant-milvus-pgvector-lancedb-chroma-faiss-2026-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-pinecone-weaviate-qdrant-milvus-pgvector-lancedb-chroma-faiss-2026-deep-dive.en A May 2026 deep-dive into the vector DB ecosystem that powers RAG and semantic search. Covers Pinecone Serverless v3, Weaviate, Qdrant (Rust), Milvus 2.5 + Zilliz, Chroma, LanceDB, pgvector + pgvectorscale + ParadeDB, Vespa, OpenSearch k-NN, Redis Vector, MongoDB Atlas Vector, SingleStore, Turbopuffer, Marqo, Vald, NGT, FAISS, ScaNN, DiskANN, Annoy, plus ANN algorithms (HNSW, IVF, IVF-PQ, DiskANN), hybrid search (BM25 + dense + RRF + Cohere/Voyage rerankers), multi-vector (ColBERT, ColPali), GPU indexing (cuVS), and adoption in Korea and Japan. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) vector-databasepineconeweaviateqdrantmilvuspgvectorlancedbchromafaisshnswembeddingsragsemantic-searchann https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-pinecone-weaviate-qdrant-milvus-pgvector-lancedb-chroma-faiss-2026-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-pinecone-weaviate-qdrant-milvus-pgvector-lancedb-chroma-faiss-2026-deep-dive.ja 2026年5月時点、RAGとセマンティック検索を支えるベクターDBエコシステムを徹底的に整理する。Pinecone Serverless v3、Weaviate、Qdrant(Rust)、Milvus 2.5 + Zilliz、Chroma、LanceDB、pgvector + pgvectorscale + ParadeDB、Vespa、OpenSearch k-NN、Redis Vector、MongoDB Atlas Vector、SingleStore、Turbopuffer、Marqo、Vald、NGT、FAISS、ScaNN、DiskANN、Annoyまで、ANNアルゴリズム(HNSW · IVF · IVF-PQ · DiskANN)、ハイブリッド検索(BM25 + dense + RRF + Cohere/Voyageリランカ)、マルチベクター(ColBERT · ColPali)、GPUインデックス(cuVS)、そして韓国と日本での採用事例まで一気に解説する。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) vector-databasepineconeweaviateqdrantmilvuspgvectorlancedbchromafaisshnswembeddingsragsemantic-searchann https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-pinecone-weaviate-qdrant-milvus-pgvector-lancedb-chroma-faiss-2026-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-vector-databases-pinecone-weaviate-qdrant-milvus-pgvector-lancedb-chroma-faiss-2026-deep-dive 2026년 5월 기준 RAG와 시맨틱 검색을 지탱하는 벡터 DB 생태계를 끝까지 본다. Pinecone Serverless v3, Weaviate, Qdrant(Rust), Milvus 2.5 + Zilliz, Chroma, LanceDB, pgvector + pgvectorscale + ParadeDB, Vespa, OpenSearch k-NN, Redis Vector, MongoDB Atlas Vector, SingleStore, Turbopuffer, Marqo, Vald, NGT, FAISS, ScaNN, DiskANN, Annoy까지 ANN 알고리즘(HNSW · IVF · IVF-PQ · DiskANN), 하이브리드 검색(BM25 + dense + RRF + Cohere/Voyage 리랭커), 멀티벡터(ColBERT · ColPali), GPU 인덱싱(cuVS), 그리고 한국 · 일본의 도입 사례까지 한 글에 정리한다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) vector-databasepineconeweaviateqdrantmilvuspgvectorlancedbchromafaisshnswembeddingsragsemantic-searchann