If you're looking for another Melody ML alternative, LALAL.AI is well worth a look. This AI-based tool separates audio files into high-quality vocal and instrumental stems, with a variety of stem options and relatively fast processing. It can handle a variety of file formats and offers tiered pricing for individuals and businesses.
Another good option is AudioShake, which concentrates on extracting stems from recordings. It also offers mixing and mastering, localization, and lyrics transcription, so you can fine-tune music, movies and user-generated content. AudioShake handles files up to 192kHz, and there are different entry points, including AudioShake Live and AudioShake Indie, for more integration.
If you prefer a browser-based approach, Databass AI offers a range of advanced audio tools, including a Stem Splitter and Lyrics Assistant. The service is geared to make music production more accessible, with tiered pricing starting with a free Basic plan. That could be handy if you need something you can use on the fly to fiddle with audio.
Last, WavTool offers a broad set of generative AI tools for music production. That includes stem separation, an audio-to-MIDI converter and cloud storage with automatic project backup. With its customizable UI and support for VST & AU plugins, WavTool is good for musicians of all levels, offering a powerful if somewhat intimidating set of tools for music production and editing.