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The Real Cost of Vector Storage: S3 Vectors vs OpenSearch vs pgvector vs Pinecone

darryl-ruggles.cloud · published 1 June 2026

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Host

https://github.com/RDarrylR/aws-vector-hosting-comparison

github.com

https://www.pinecone.io/

pinecone.io

https://github.com/hashicorp/terraform-provider-aws/blob/main/CHANGELOG.md

github.com

https://github.com/RDarrylR/aws-vector-hosting-comparison/blob/main/calculator/src/vector_cost/model.py

github.com

https://github.com/RDarrylR/aws-vector-hosting-comparison/blob/main/calculator/src/vector_cost/prices.py

github.com

https://github.com/RDarrylR/aws-vector-hosting-comparison/blob/main/lambdas/benchmarker/src/benchmarker/handler.py

github.com

https://aws.amazon.com/blogs/aws/amazon-s3-vectors-now-generally-available-with-increased-scale-and-performance/

aws.amazon.com

https://docs.aws.amazon.com/AmazonS3/latest/userguide/s3-vectors.html

docs.aws.amazon.com

https://docs.aws.amazon.com/AmazonS3/latest/userguide/s3-vectors-best-practices.html

docs.aws.amazon.com

https://aws.amazon.com/blogs/storage/optimize-agent-tool-selection-using-s3-vectors-and-bedrock-knowledge-bases/

aws.amazon.com

https://aws.amazon.com/blogs/database/query-billion-scale-vectors-with-sql-integrating-amazon-s3-vectors-and-aurora-postgresql/

aws.amazon.com

https://aws.amazon.com/s3/pricing/

aws.amazon.com

https://aws.amazon.com/blogs/aws/introducing-the-next-generation-of-amazon-opensearch-serverless-for-building-your-agentic-ai-applications/

aws.amazon.com

https://aws.amazon.com/blogs/big-data/the-next-generation-of-amazon-opensearch-serverless-built-from-the-ground-up-for-agents/

aws.amazon.com

https://aws.amazon.com/opensearch-service/pricing/

aws.amazon.com

https://docs.aws.amazon.com/opensearch-service/latest/developerguide/serverless-create.html

docs.aws.amazon.com

https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraPostgreSQL.VectorDB.html

docs.aws.amazon.com

https://aws.amazon.com/rds/aurora/pricing/

aws.amazon.com

https://docs.aws.amazon.com/bedrock/latest/userguide/model-card-amazon-titan-text-embeddings-v2.html

docs.aws.amazon.com

https://aws.amazon.com/bedrock/pricing/

aws.amazon.com

https://www.pinecone.io/pricing/

pinecone.io

https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/s3vectors_vector_bucket

registry.terraform.io

https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/s3vectors_index

registry.terraform.io

https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/opensearchserverless_collection

registry.terraform.io

https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/opensearchserverless_collection_group

registry.terraform.io

https://docs.powertools.aws.dev/lambda/python/latest/

docs.powertools.aws.dev

https://docs.astral.sh/uv/

docs.astral.sh

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https://builder.aws.com/community/@darrylr

builder.aws.com