Vector Database Planner

Size and compare open-source vector databases for your embedding and semantic search workloads.

Workload Parameters

Total Vectors (millions)

Embedding Dimensions

Target QPS (queries/sec)

Replicas

High Availability

Vector Precision / Quantization

Avg Metadata/Text per Vector (KB)

Index Type

Database	License	Lang	Distributed	Hybrid Search	GPU Accel	Index Types

Index Type	Accuracy	Latency	Throughput	Index Time	Cost
IVF_FLAT	Mid	Mid	Low	Fast	Mid
IVF_PQ	Mid	Mid	High	Mid	Mid
HNSW	High	Low	High	Slow	High
DiskANN	High	High	Mid	Very Slow	Low
SCANN	Mid	Mid	High	Mid	Mid
GPU_CAGRA	High	Low	Very High	Fast	Very High
Dynamic	High	Low	High	Mid	Mid
Inverted	High	Low	High	Fast	Low
Sparse	High	Low	High	Fast	Low