(A) The total number of units for which k sorters agree (unit agreement is defined as 50% spike match). (B) The number of units (per sorter) for which k sorters agree; Most sorters find many units that other sorters do not. (HS = HerdingSpikes2, KS = Kilosort2, IC = IronClust, TDC = Tridesclous, SC = SpyKING Circus, HDS = HDSort) (C) Number of matched ground-truth units (blue) and false positive units (red) found by each sorter on which k sorters agree upon. Most of the false positive units are only found by a single sorter. Number of false positive units found by sorters: HS = 4, KS = 4, IC = 4, SC = 2, TDC = 1, HDS = 2. (D) Signal-to-noise ratio (SNR) of ground-truth unit with respect to the number of k sorters agreement. Results are split by sorter.