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Application development Features Social - Facebook Social - LinkedIn Social - X Topics 

OpenSearch 3.0: Vector Search Gets the Open Source Performance Boost AI Applications Need

May 22, 2025 Tom Smith AI, AI applications, GenAI, OpenSeacrch 3.0, vector databases
by Tom Smith

As generative AI applications become more sophisticated, their dependence on high-performance vector databases grows. Organizations managing billions of vectors now face critical challenges with speed, scale and costs — challenges the latest release from the OpenSearch Software Foundation aims to solve.

OpenSearch 3.0, the first major release since the project moved to the Linux Foundation, delivers unprecedented performance improvements that strengthen its position as a leading open-source search and analytics platform designed for AI-driven workloads.

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Performance That Powers AI Innovation

OpenSearch 3.0 achieves a remarkable 9.5x performance improvement over OpenSearch 1.3, building upon benchmarks that already showed earlier versions operating 1.6x faster than its closest competitor. These gains come at a crucial time, as traditional databases struggle to support the multidimensional data requirements of modern generative AI applications.

“The enterprise search market is skyrocketing in tandem with the acceleration of AI, and it is projected to reach $8.9 billion by 2030,” said Carl Meadows, Governing Board Chair at the OpenSearch Software Foundation and Director of Product Management at Amazon Web Services (AWS). “OpenSearch 3.0 is a powerful step forward in our mission to support the community with an open, scalable platform built for the future of search and analytics.”

Vector Engine Innovations Drive Efficiency

Among the most significant advancements in OpenSearch 3.0 is the experimental GPU acceleration feature for its Vector Engine. This feature leverages NVIDIA cuVS technology to deliver superior performance while reducing operational expenses. This feature accelerates index builds up to 9.3x and can reduce costs by 3.75x, making large-scale vector workloads more economically viable.

OpenSearch 3.0 also introduces native Model Context Protocol (MCP) support, enabling AI agents to communicate seamlessly with the platform for more comprehensive AI-powered solutions. The new Derived Source feature reduces storage consumption by one-third by eliminating redundant vector data sources.

Data Management Advances Support Scalability

Substantial upgrades have been made to the platform’s data management capabilities, including support for gRPC for faster data transport, pull-based ingestion that decouples data sources from consumers, and reader/writer separation that optimizes performance for simultaneous indexing and search workloads.

“With pull-based ingestion, users can fetch data and index it rather than pushing data into OpenSearch from REST APIs, which can drive up to 40% improved throughput and enable more efficient use of compute,” Meadows explained, highlighting Uber’s contribution to this feature.

Community-Driven Innovation Accelerates Development

OpenSearch’s transition to the Linux Foundation has catalyzed greater community participation, with major enterprises like AWS, SAP, Uber, and recently ByteDance making significant contributions.

“Becoming a member of the OpenSearch Software Foundation allows us to both contribute to and benefit from a growing ecosystem of scalable, open source search solutions,” said Willem Jiang, Principal Open Source Evangelist at ByteDance, underscoring the value of vendor-neutral governance in driving adoption.

This community approach differentiates OpenSearch from proprietary vector database solutions. While many specialized vector databases have emerged, OpenSearch combines traditional search, analytics and vector search in one platform, supporting three vector search engines — NMSLIB, FAISS and Apache Lucene.

Hybrid Search Powers Real-World Applications

One of the most compelling implementations of OpenSearch is hybrid search, which combines traditional keyword searches with vector searches to provide unified results based on composite scores. This approach has proven particularly effective for applications that must handle specific queries (like product names or part numbers) and more ambiguous prompts that benefit from semantic understanding.

The platform’s versatility is demonstrated in real-world applications like Adobe Acrobat’s AI Assistant, which uses OpenSearch’s vector database to enable natural language queries of PDF documents.

Looking Ahead

With OpenSearch 3.0 now available, the project appears well-positioned to capitalize on the growing demand for vector databases supporting increasingly complex AI applications. Its open-source approach and features like GPU acceleration and MCP support offer organizations a robust foundation for building and deploying AI-powered search applications.

“Since being forked in 2021, OpenSearch continues to evolve and thrive as an open-source option used in products, managed services and enterprises,” said Mitch Ashley, VP and Practice Lead, DevOps and Application Development at The Futurum Group. “Futurum sees OpenSearch as well-positioned for further innovation necessary to support new and demanding AI applications.”

For AI developers evaluating vector database solutions, OpenSearch’s comprehensive feature set — including keyword support, hybrid search, geospatial capabilities and powerful aggregation tools — provides a compelling platform that minimizes the need for complex middleware integration.

As vector databases evolve in response to AI demands, OpenSearch’s community-driven innovation model may prove to be its greatest competitive advantage in a rapidly changing market.

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