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S3 Vector vs OpenSearch vs PostgreSQL vs Neptune

https://hackernoon.com/aws-bedrock-knowledge-bases-comparing-s3-vector-store-vs-opensearch-postgresql-and-neptune

Vector type Retriev. Pricing per month
S3 Vector   2284 ms  $3.54
Neptune     2236 ms  $345
PostgreSQL  1807 ms  $86
OpenSearch  1695 ms  $172
Hackernoon AWS Bedrock Knowledge Bases: Comparing S3 Vector Store vs. OpenSearch, PostgreSQL & Neptune Starting on July 15, AWS has added support for S3 vector stores for Bedrock knowledge bases. I'm going to compare each AWS-managed S3 vector store.
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