Open Vector Database Benchmark

Name: Open Vector Database Benchmark results
Creator: Infino

published by Infino

repo submit a result

dataset

index

recall ≥

order

Results

Cohere 1M, 768 dimensions, highest QPS at recall ≥ 0.90

engine

version

index

QPS

recall

p99 ms

measured

OceanBase

4.4.2.1

HNSW_SQ, M 16, efConstruction 300

8,049.5

0.9231

1.3

2026-09-21

Infino

0.8.0

resident HNSW, Infino stores vectors as Sq16 internally

7,722.7

0.9587

1.2

2026-09-18

Elasticsearch

9.5.1

int8_hnsw with rescore, oversample 2.0

5,727.8

0.9323

1.6

2026-09-21

Milvus

2.6.14

HNSW_SQ, SQ4U with FP16 refinement, refine_k 2

5,570.3

0.9427

1.6

2026-09-21

pgvector

pgvector 0.8.6 · PostgreSQL 17.11

HNSW on halfvec

4,142.0

0.9095

5.0

2026-09-18

pgvecto.rs

vectors 0.4.0 · PostgreSQL 16.8

HNSW, no quantization, vectors 0.4.0

3,085.4

0.9229

3.1

2026-09-21

MariaDB

11.8.9

HNSW, MariaDB stores vectors as binary16 internally

2,896.0

0.9494

6.2

2026-09-18

LanceDB

0.39.0

IVF_HNSW_SQ

2,675.6

0.9244

7.4

2026-09-18

VectorChord

vchord 0.4.3 · PostgreSQL 17.4

vchordrq

1,751.8

0.9117

11.6

2026-09-18

Weaviate

1.28.2

HNSW float32

1,292.2

0.9429

7.4

2026-09-21

OpenSearch

3.8.0

HNSW + scalar quantization

1,169.3

0.9289

10.1

2026-09-18

Redis

7.4.7

HNSW float32

1,030.6

0.9208

1.7

2026-09-18

Apache Doris

4.1.4-rc04

HNSW ann_index, float32

794.1

0.9436

52.1

2026-09-21

Vespa

8.751.13

HNSW float32

788.6

0.9128

3.3

2026-09-18

pgvectorscale

vectorscale 0.9.1 · PostgreSQL 17.11

StreamingDiskANN, memory_optimized storage

751.1

0.9450

22.0

2026-09-21

Qdrant

1.19.1

HNSW float32

642.5

0.9488

5.2

2026-09-18

TiDB

8.5.1

HNSW on a TiFlash replica, float32

547.7

0.9013

19.4

2026-09-18

Chroma

1.0.0

HNSW float32

291.6

0.9819

5.9

2026-09-21

CockroachDB

26.2.6

C-SPANN vector index, float32

183.4

0.9435

33.4

2026-09-21

Cohere 10M, 768 dimensions, highest QPS at recall ≥ 0.90

engine

version

index

QPS

recall

p99 ms

measured

Infino

0.8.0

resident HNSW, Infino stores vectors as Sq16 internally

7,269.9

0.9255

1.5

2026-09-22

Elasticsearch

9.5.1

int8_hnsw with rescore, oversample 2.0

5,169.7

0.9080

1.9

2026-09-21

pgvecto.rs

vectors 0.4.0 · PostgreSQL 16.8

HNSW, no quantization, vectors 0.4.0

2,820.2

0.9010

50.0

2026-09-21

pgvector

pgvector 0.8.6 · PostgreSQL 17.11

HNSW on halfvec

2,646.3

0.9186

10.5

2026-09-22

Milvus

2.6.14

HNSW_SQ, SQ4U with FP16 refinement, refine_k 2

2,516.9

0.9548

1.8

2026-09-22

Vespa

8.754.14

HNSW float32

651.5

0.9044

5.9

2026-09-21

Qdrant

1.19.1

HNSW float32

267.0

0.9618

7.4

2026-09-22

Chroma

1.0.0

HNSW float32

252.9

0.9664

7.1

2026-09-21

VectorChord

vchord 0.4.3 · PostgreSQL 17.4

vchordrq

202.6

0.9469

1104.9

2026-09-22

Apache Doris

4.1.4-rc04

HNSW ann_index, float32

111.1

0.9816

80.4

2026-09-22

TiDB

8.5.1

HNSW on a TiFlash replica, float32

92.7

0.9141

31.6

2026-09-21

CockroachDB

26.2.6

C-SPANN vector index, float32

76.5

0.9390

69.6

2026-09-22

pgvectorscale

vectorscale 0.9.1 · PostgreSQL 17.11

StreamingDiskANN, memory_optimized storage

429.6

0.7564

50.5

2026-09-21

Open Vector Database Benchmark

Results

Recall sweep