ACE-Step 1.5 XL lands with Turbo, Base, SFT

This looks like a straightforward but important release for people already following ACE-Step’s music-model stack.

• –Three variants are available, which makes it easier to compare speed, quality, and tuning behavior.
• –The update is aimed at local/open music generation users who want downloadable checkpoints rather than a hosted-only experience.
• –It is more of a model availability fix than a brand-new product concept, but that still matters for adoption.
• –The biggest value here is practical access: once the weights are posted, the ecosystem can start testing, benchmarking, and fine-tuning quickly.