Stable Audio 3 Small-SFX
Sound effects and short ambiance from a sentence ("footsteps on gravel", "distant thunder") — 44.1 kHz stereo, up to two minutes. The first sound model here that does not need a Mac: it runs on a Linux GPU server.
What it costs
Free — downloads once, then runs on your own Mac with no per-image cost.
Where it runs
Downloads once and runs on your own Mac — no key, no account, no per-image cost.
Licence: Stability Community · free < $1M revenue