ACE-Step 1.5 XL (4B DiT)
ACE-Step 1.5 XL is the 4B-parameter Diffusion Transformer decoder in the ACE-Step 1.5 music generation line, built for higher audio quality than the earlier 2B models. The release says it achieves the best scores across all 11 benchmark metrics, surpassing both commercial and open-source models, while remaining compatible with ACE-Step language models from 0.6B to 4B.
- Type
- Multimodal
- Weights
- Open
Related tools
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About StepFun
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StepFun AI is a creative AI assistant platform that offers chat, search, coding help, and multimodal generation (images, audio, video), plus research models like Step3 and NextStep-1.
Tools using ACE-Step 1.5 XL (4B DiT)
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