Yeah, SPANN has better f1+queries per second on some benchmarks, but that's a little like comparing sorting algorithms, they're both fast and good. The databas

Yeah, SPANN has better f1+queries per second on some benchmarks, but that's a little like comparing sorting algorithms, they're both fast and good. The database software behind the ANN algo is probably a little more important in practice than the ANN algo itself, unless you're operating at such scale and speed that its an actual issue (e.g. you're google). Differences between algorithms are a little more interesting when they let you do something totally different, like, for example, minimize the speed hit from doing searches on disk (SPTAG, DiskANN).