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ACE-Step 1.5 — full-precision planner and encoders (v4)

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@yu314-coder yu314-coder released this 27 Sep 16:01
· 108 commits to main since this release

ACE-Step 1.5 — full-precision planner and encoders for WhisperKit (v4)

Format conversions of ACE-Step 1.5 (MIT), nothing retrained. Built by
ports/acestep/convert_full.py. They replace the int8 planner, condition
encoder and hints of acestep-v2; its text encoder, audio decoder, silence
latent and tokenizer are unchanged.

File Contents
ace_lm_bf16.part{1,2}.safetensors The 1.7B planner (acestep-5Hz-lm-1.7B) exactly as published, bfloat16
ace_cond_f16.safetensors Condition encoder: lyric and timbre stacks, text projection, float16
ace_hints_f16.safetensors FSQ codebook (float32) and detokenizer (float16)
ace_xl_cond_f16.safetensors The encoder tensors ACE-Step 1.5 XL retrained, float16

Against the int8 set, with the app's planner fix (build 1.2 (24)), seven
prompts at 81 s matched their own prompt at CLAP 0.594 against 0.551, by a
margin of 0.140 against 0.062.

Licence: MIT, as upstream.