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Amazon OpenSearch Service

Plans and prices

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No minimum fee or usage requirement · Pricing depends on deployment model, instance type, storage tier, and usage

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AI applications
AWS describes use cases including RAG, recommendations, chatbots, semantic search, and multimodal and conversational search.aws.amazon.com · read 7 Oct 2026
Amazon Bedrock
OpenSearch Service has native two-way integration with Amazon Bedrock and is AWS's recommended vector database for Bedrock.aws.amazon.com · read 7 Oct 2026
Availability
AWS states a 99.99% SLA for highly available, multi-AZ deployments with standby.aws.amazon.com · read 7 Oct 2026
Compliance
AWS says OpenSearch Service is HIPAA-eligible and compliant with PCI DSS, SOC, ISO, and FedRAMP standards.aws.amazon.com · read 7 Oct 2026
Compliance caveat
AWS says choosing a particular OpenSearch or Elasticsearch version when creating a domain does not guarantee compliance.docs.aws.amazon.com · read 7 Oct 2026
Deployment
The vector database is available in fully managed and serverless configurations.aws.amazon.com · read 7 Oct 2026
Free usage
AWS's getting-started page describes Free Tier usage of up to 750 hours per month of a t2.small.search instance and 10 GB per month of optional EBS storage.aws.amazon.com · read 7 Oct 2026
Hybrid search
It can combine vector embeddings and text-based keywords in a single search request.aws.amazon.com · read 7 Oct 2026
Integration
Zero-ETL integrations with Amazon DynamoDB and Amazon DocumentDB support vector search across operational data.aws.amazon.com · read 7 Oct 2026
Operations
AWS says the service provides seamless upgrades and patches, 24/7 monitoring, self-healing, and automatic scaling for serverless deployments.aws.amazon.com · read 7 Oct 2026
Pricing detail
The pricing page's example lists $0.24 per OCU-hour for Serverless indexing and search, and $0.02 per GB per month for managed storage.aws.amazon.com · read 7 Oct 2026
Purpose
Amazon OpenSearch Service is a managed service for deploying and operating search, observability, and log analytics applications.aws.amazon.com · read 7 Oct 2026
Security
The service supports encryption at rest and in transit, and granular permissions for indices, documents, and fields.aws.amazon.com · read 7 Oct 2026
Vector search
Its vector engine supports k-NN and ANN search using HNSW and IVF implementations, including searches over billions of high-dimensional vectors.aws.amazon.com · read 7 Oct 2026

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