ACE-Step 1.5 is an efficient open-source music generation model that provides commercial-grade music generation quality on consumer hardware. The model outperforms most commercial music models on multiple evaluation metrics and shows excellent performance and generation speed. It supports converting simple user queries into complete song blueprints and allows personalized training with just a few songs, making it suitable for music creators, producers, and content creators. ACE-Step 1.5 supports multiple devices, has low running costs, and offers powerful features.