Google Research open-sources ScaNN
Open-sourced ScaNN — applies anisotropic vector quantization; on ann-benchmarks, about 2x the QPS of 11 other libraries at the same accuracy
Why it matters
Redesigned the quantization loss function around inner-product estimation error, pushing the quality-speed frontier of MIPS forward by a generation
Source — Primary sources first; secondary reports are labelled “Press”
Officialresearch.googlehttps://research.google/blog/announcing-scann-efficient-vector-similarity-search/Added in Week 35, 2026 · See that week