MixAudio

Video makers, game developers and podcasters who need background music without worrying about licensing can try MixAudio, an AI music generator that produces copyright-free tracks in seconds.

You describe what you want in text, or feed in an image or an audio clip, and MixAudio builds music from that input.

The pricing model is free.

Beyond one-off tracks, MixAudio has an AI Remix feature for reworking existing audio and an AI Soundtrack feature for generating music to fit a scene or mood.

Blockmusic AI handles editing: you can change individual sections of a track, layer different stem tracks, and bring in more stem blocks by writing prompts.

MixAudio also runs AI Radio, a 24/7 stream of endless AI-generated music, which is handy if you want something playing without picking tracks yourself.

It is also listed as an AI API for developers.