I've tried a few sites that show up in a search for ai stem separation. Some work pretty well for rock music.

If I recall correctly, https://vocalremover.org/ worked pretty well. Though, it's pretty limited in the free tier and only allows payment via patreon. I never tried the paid version because I don't have a patreon account and don't want one.

There's an openvino plugin for audacity that can do music separation but it only supports 4 tracks at the moment (drums, bass, vocals, other).

https://github.com/intel/openvino-plugins-ai-audacity/blob/m...

I'm using https://github.com/adefossez/demucs to split drums, bass, voice and "everything else".

Works pretty well for my personal/hobbyist use (quality also depends on genre and instruments used - synth stuff tends to bleed into voice a bit).

Steinberg spectral Layers is one of the commercial ones. It sounds really good.

Ultimate vocal remover is a common one

Try moises