mteb-sts-score-range-0-to-5
IN premise — summaries/2026/08/24/muennighoff-2022-mteb-s4-additional-modalities-text-embeddings-are-chunk-1.md
Created 2026-08-25T02:58:20+00:00
STS scores in MTEB range from 0 to 5 inclusive, where 5.0 indicates near-identical meaning.
Summary
STS scores in the MTEB benchmark are capped at 5, where a 5.0 means two texts carry essentially the same meaning rather than merely being similar. This fixed 0-to-5 ceiling matters for any downstream comparison or threshold logic, since it defines the maximum possible semantic alignment and prevents misreading a score as an open-ended value.