Algorithm Demucs4 HT splits track into 4 stems (bass, drums, vocals, other). It's now best for bass/drums/other separation. It was released in year 2022 and has 3 versions: 

• htdemucs_ft - best quality, but slow
• htdemucs - lower quality, but fast
• htdemucs_6s - it has 2 additional stems "piano" and "guitar" (quality for them is still so-so).

Link: https://github.com/facebookresearch/demucs/tree/ht/demucs

Quality table