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Vespa

Yahoo open-source big data serving engine. Store, search, organize, and apply machine-learned models to big data in real time.

Open Source
Vector Database
Added: 8/19/2026

Problem

Combining vector search, structured filtering, text matching, and tensor reranking at billion-query scale.

Solution

High-performance C++ engine executing vector similarity and custom ML ranking in under 10ms.

Challenge

Information not available.

Key Features

  • Billion-scale vector search
  • Native ONNX model evaluation
  • Real-time document updates
  • Hybrid lexical + vector search

Tech Choices

Tech stack not specified.

Target User

General developers.

Impact

"The impact of this tool is currently being measured by the community."

Quick Details

Pricing
Free
Platforms
Docker, Kubernetes, Cloud
Updated
8/19/2026