For game audio, I need short, clean, tail-free sounds and loops in exact bar lengths. Test the ai music maker on a four-bar battle loop at 140 bpm rather than a full song, because that is what you will actually need in the engine.
If you work in a DAW, the extend and continue features matter more than the initial generation. Can you take a 30-second idea from the ai music generator and push it to three minutes without the arrangement collapsing? That is where the real production value lives.
The mixing decisions are already made when the audio comes out, so listen for the vocal-to-instrumental balance specifically. If the ai music generator buries the voice or pushes it too far forward with no stems to fix it, you are stuck with that choice.