ComfyUI Node
AceStep 1.5 SFT Generate
AceStep 1.5 SFT sampler + decoder. Requires MODEL and conditioning inputs. Audio output requires VAE connected.
AceStep 1.5 SFT Generate
- model
- positive
- negative
- vae
- latent_or_audio
- model
- vae
- positive
- negative
- latent
- audio
◄seed0►
◄steps50►
◄cfg7.0►
◄sampler_nameeuler►
◄schedulernormal►
◄denoise1.00►
◄duration60.0►
◄infer_methodode►
◄guidance_modeapg►
◄batch_size1►
◄latent_shift0.00►
◄latent_rescale1.00►
◄fade_in_duration0.0►
◄fade_out_duration0.0►
◄use_tiled_vaetrue►
◄unload_models_after_generatefalse►
◄voice_boost0.0►
◄apg_eta0.00►
◄apg_momentum-0.75►
◄apg_norm_threshold2.5►
◄guidance_interval0.50►
◄guidance_interval_decay0.00►
◄min_guidance_scale3.0►
◄guidance_scale_text-1.0►
◄guidance_scale_lyric-1.0►
◄omega_scale0.00►
◄erg_scale0.00►
◄cfg_interval_start0.00►
◄cfg_interval_end1.00►
◄shift3.0►
Categoryaudio/AceStep SFT
Inputs (35)
| Name | Type | Default | Description |
|---|---|---|---|
| model | MODEL | AceStep 1.5 diffusion model (from Load Diffusion Model or with LoRA applied). | |
| positive | CONDITIONING | Positive conditioning from AceStep 1.5 SFT TextEncode. | |
| negative | CONDITIONING | Negative conditioning from AceStep 1.5 SFT TextEncode. | |
| seed | INT | 00–18446744073709550000 | — |
| steps | INT | 501–200 | Diffusion inference steps. |
| cfg | FLOAT | 7.01–20 | Classifier-free guidance scale. |
| sampler_name | COMBO | euler | 44 options: euler, euler_cfg_pp, euler_ancestral, euler_ancestral_cfg_pp, heun, heunpp2, +38 |
| scheduler | COMBO | normal | 9 options: simple, sgm_uniform, karras, exponential, ddim_uniform, beta, +3 |
| denoise | FLOAT | 1.000–1 | Denoise strength. 1.0 = full generation. < 1.0 requires latent_or_audio. |
| duration | FLOAT | 60.00–600 | Duration in seconds. Set to 0 for auto from latent_or_audio. |
| infer_method | COMBO | ode | ode = deterministic diffusion. sde = stochastic (remaps sampler). |
| guidance_mode | COMBO | apg | APG = Adaptive Projected Guidance. ADG = Angle-based Dynamic Guidance. standard_cfg = normal CFG. |
| vaeopt | VAE | VAE for decoding latents to audio. Audio output requires this. | |
| latent_or_audioopt | AUDIO,LATENT | Base input for refinement (img2img). Use denoise < 1.0. | |
| batch_sizeopt | INT | 11–16 | Number of audios to generate in parallel. |
| latent_shiftopt | FLOAT | 0.00-0.2–0.2 | Additive shift on latents before VAE decode. |
| latent_rescaleopt | FLOAT | 1.000.5–1.5 | Multiplicative scale on latents before VAE decode. |
| fade_in_durationopt | FLOAT | 0.00–10 | — |
| fade_out_durationopt | FLOAT | 0.00–10 | — |
| use_tiled_vaeopt | BOOLEAN | true | Use tiled VAE for long audio / low VRAM. |
| unload_models_after_generateopt | BOOLEAN | false | Unload models from memory after generation. |
| voice_boostopt | FLOAT | 0.0-12–12 | Voice boost in dB. |
| apg_etaopt | FLOAT | 0.00-10–10 | APG eta: parallel component retention. |
| apg_momentumopt | FLOAT | -0.75-1–1 | APG momentum buffer coefficient. |
| apg_norm_thresholdopt | FLOAT | 2.50–15 | APG norm threshold for gradient clipping. |
| guidance_intervalopt | FLOAT | 0.50-1–1 | Guidance interval width. -1 = use legacy cfg_interval_start/end. |
| guidance_interval_decayopt | FLOAT | 0.000–1 | — |
| min_guidance_scaleopt | FLOAT | 3.00–30 | — |
| guidance_scale_textopt | FLOAT | -1.0-1–30 | Split text guidance. Active when both text and lyric > 1.0. |
| guidance_scale_lyricopt | FLOAT | -1.0-1–30 | Split lyric guidance. Active when both text and lyric > 1.0. |
| omega_scaleopt | FLOAT | 0.00-8–8 | — |
| erg_scaleopt | FLOAT | 0.00-0.9–2 | — |
| cfg_interval_startopt | FLOAT | 0.000–1 | — |
| cfg_interval_endopt | FLOAT | 1.000–1 | — |
| shiftopt | FLOAT | 3.00–5 | Timestep schedule shift. ACEStep15 default is 3.0. |
Outputs (6)
| Name | Type | Description |
|---|---|---|
| model | MODEL | — |
| vae | VAE | — |
| positive | CONDITIONING | — |
| negative | CONDITIONING | — |
| latent | LATENT | — |
| audio | AUDIO | — |