Library / SDK
Retrieval & Memory
ScaNN
1Efficient 2vector 3similarity 4search 5from 6Google.
the six Ws · specification
W1
Who
By Google Research.
W2
What
A library for fast approximate nearest-neighbor search at scale.
W3
Where
A Python/C++ library in your service.
W4
When
When you need high-recall ANN search.
W5
Why
State-of-the-art speed and accuracy tradeoffs.
W6
With
Python and TensorFlow-compatible tooling.
W7
Watch
Apache-2.0, from Google Research; runs locally, no credentials.
ANNGoogleVector-search