Exa AI
Exa AI (formerly Metaphor) is an artificial intelligence company that builds a search engine designed specifically for AI applications.
AI Infrastructure
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FAISS
FAISS (Facebook AI Similarity Search) is an open-source library from Meta for efficient similarity search and clustering of dense vectors
LanceDB
LanceDB is an open-source, developer-friendly vector database and multimodal lakehouse built on the Lance columnar storage format, designed to store vector embeddings, images, video, audio, and structured…
Product quantization
Product quantization (PQ) is a vector-compression technique for approximate nearest-neighbor (ANN) search that splits each high-dimensional vector into M equal sub-vectors and quantizes each sub-vector with…
Tavily
Tavily is a search engine and API platform built specifically for AI agents and retrieval-augmented generation (RAG) systems.
Turbopuffer
Turbopuffer is a serverless vector and full-text search database built from first principles on object storage such as Amazon S3 and Google Cloud Storage.
Vector database
A vector database is a database that stores data as high-dimensional vectors (numerical embeddings produced by a machine learning model) and retrieves records by similarity rather than exact match