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Design a vector database from scratch that stores high-dimensional embeddings and supports fast approximate nearest neighbor (ANN) search. The system must handle billions of vectors across distributed nodes while maintaining sub-50ms query latency. Key features: Insert, update, and delete vectors with metadata. K-nearest neighbor search with cosine, euclidean, or dot product distance.
Vector dimensions
768-1536
Total vectors
1B+
Index size (1B x 1536d)
~6TB in memory
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