Stable Audio

Stable Audio is Stability AI's text-to-audio model that creates music, soundscapes, and sound effects from prompts alone. With Stable Audio 3.0, released in May 2026, it can produce long tracks in a single pass, which suits creators and sound designers who repeatedly need background scores or effects. Because an API is offered, it also fits users who want to slot the output into their own tools or workflows.

Its strengths are length and sonic range. A single generation can yield a track of up to roughly 6 minutes 20 seconds, sparing you from stitching short loops together, while audio-to-audio transformation and inpainting let you reshape existing material.

The limits are vocals and access. It does not generate vocals, so it is not the tool for building a finished song with lyrics, and a Korean-support score of just 50 can make prompt writing awkward for non-English users. It is also worth noting that the free web trial is restricted to non-commercial use.

In short, for creators handling long background tracks and sound effects inside an automated pipeline, it is a sensible choice. If you instead want to easily produce a finished song with vocals and lyrics, you are better off looking at another tool.