If you're looking for another Samplab alternative, Moises is definitely worth a look. Moises provides a range of AI-based audio editing options, including a one-click vocal, drum, guitar, bass and instrument separator. It also has a smart metronome, audio speed changer, pitch shifter and AI key detector. That can be really useful for musicians who want to practice a song at their own tempo and in any key.
Another good option is Fadr, a web-based interface that offers a range of AI-based music production tools. Fadr has a vocal remover, song splitter, key/tempo/chords detector, remix maker and mashup maker. That means you can pull out vocals, bass, drums and melodies as audio and MIDI files, making it a good option for musicians and producers.
If you want more advanced stem separation and editing abilities, RipX DAW is another good option. RipX DAW lets you edit each stem note by note, replacing instruments or vocals, and offers stem clean-up and audio repair modules in its PRO version. That makes it a good option for producers, DJs and musicians who want to fine-tune their audio.
Last, WavTool offers a broad range of music production abilities, including stem separation, MIDI continuation and variation. It supports VST & AU plugins and has a customizable, panel-based user interface. WavTool is available to musicians at all levels, offering a powerful but accessible set of tools for music production and editing.