Vocal models/ensembles sorted by instrumental bleedless metric:

(more muddy; Gabox and Unwa’s Revive models not evaluated yet):

Descriptions of the public models

 

 

MVSep BS-Roformer (2025.07.20) - the 2 previous versions got replaced on the site by it

Inst. Fullness 27.83

Inst. Bleedless 49.12

 

MVSep Ensemble 11.50 (2024.12.20)

Inst. Fullness 27.17

Inst. Bleedless 47.94

 

MVSep Ensemble (4 stem) 11.93 (2025.06.30)

Inst. Fullness 28.70

Inst. Bleedless 47.68

 

MVSep MelBand Roformer (2024.10) - ZF’s FT of Bas’ model)

Inst. Fullness 27.73

Inst. Bleedless 47.48

 

BS-RoFormer SW 6 stem (MVSEP/Colab/undef13 splifft)

Inst. Fullness 27.45

Inst. Bleedless 47.41

(use inversion from vocals and not mixed stems for better instrumental metrics)

 

MDX23 Colab fork v2.5 by jarredou

Inst. Fullness 28.02

Inst. Bleedless 47.24

(more noticeable bleeding/noise than MVSep Ensemble above)

 

Beta 6X

xx

xx

 

voc_fv4

xx

xx

(Good if you need less vocal residues than typical instrumental Roformers (even less than Mel Kim, FT2 Bleedless, or Beta 6X - makidanyee).

 

MVSEP BS PolarFormer Vocals (2026.05)

Inst. Fullness 17.68

Inst. Bleedless 47.18

 

MelBand Roformer Kim

Inst. Fullness 27.44

Inst. Bleedless 46.56 (or 46.87; and increases with overlap 8 up to ~47.12)

 

Kim | FT2 Bleedless (by Unwa)

Inst. Fullness 27.78

Inst. Bleedless 46.31

 

Beta 5e (by unwa)

Inst. Fullness 27.63 (bigger metric than Kim)

Inst. Bleedless 45.90

 

Kim | FT 2 (by unwa)        

Inst. Fullness 28.36

Inst. Bleedless 45.58

 

Kim | FT (by unwa)        

Inst. Fullness 29.18

Inst. Bleedless 45.36

 

MVSEP BS Roformer (2025.06)

Inst. fullness: 17.30

Inst. bleedless: 37.83

(can be still a good choice in case of some crossbleeding, vocal chops, or residues of reverbs or BGV)

 

MVSEP Ensemble 11.93 (also contains 2025.06)

Inst. fullness: 17.73

Inst. bleedless: 36.30

 

___

 

Outperformed vocal models for instrumental bleedless
(still metrics for instrumental stem, so after inversion if not duality)

 

SYHFT V3 (by SYH99999)        

Fullness 28.07

Bleedless 45.15

 

Duality v1 (by unwa)

Fullness 29.08

Bleedless 43.26

 

Duality v2 (by unwa)

Fullness 28.03

Bleedless 44.16

 

Mel Becruily vocal

Fullness 28.25

Bleedless 40.95

 

SYHFT V2.5 (by SYH99999)        

Fullness 28.60

Bleedless 40.34

 

Big SYHFT V1 (by SYH99999)

Fullness 28.48

Bleedless 44.81

 

Unwa beta 4

Fullness 26.29

Bleedless 44.71

 

SYHFT V4 and V5 were never publicly released

 

___

 

bleedless+fullness/2=avg

experimental avg metric for vocals (favours bleedless metric)

 

Bas' Edition - 27.72

FT2 bleedless - 27,54 | 2,49

24.10 - 27.44 | 2,21

FT2 - 26.84 | 2,23

FT - 26.58

5e - 26.42 | 1,54

voc_gabox - 26.38

voc_fv2 - 26.36

voc_fv3 - 26.06

Becruily - 25.99

beta 4 - 25.93

FullnessVocalModel - 25.91

voc_fv4 - 25.02