Library / SDK
Retrieval & Memory
Voyager
1Fast 2approximate 3nearest-neighbor 4search 5from 6Spotify
the six Ws · specification
W1
Who
Maintained by Spotify.
W2
What
A fast approximate nearest-neighbor library for vectors.
W3
Where
An embedded library for Python and Java.
W4
When
When you need fast in-process similarity search.
W5
Why
Spotify's faster successor to Annoy for production.
W6
With
Your vectors and a supported binding.
W7
Watch
Company-maintained (Spotify); open-source (Apache-2.0), library only. Runs embedded in your process; data stays local.