Nodes/ComfyUI-AlchemicaSampler/⚗ Alchemica · Calibration
ComfyUI Node

⚗ Alchemica · Calibration

Measures how the model builds the image and saves a profile for the alchemica_tarato scheduler.

By Nessuno76·Created 2 days ago·Updated 2 days ago· 1
⚗ Alchemica · Calibration
  • model
  • positive
  • latent_image
  • modello_riferimento
  • latent_riferimento
  • grafico
  • report
◄seed1001►
◄passi_densi40►
◄cfg1.00►
◄profilokrea2_turbo_nvfp4►
◄modalitaaccumula►
Category⚗ AlchemicaMente/sampling

Inputs (9)

NameTypeDefaultDescription
modelMODELThe model to calibrate (e.g. Krea 2 Turbo NVFP4)
positiveCONDITIONING—
latent_imageLATENTAt the resolution you really generate at (the FINAL one)
seedINT10010–18446744073709550000—
passi_densiINT4016–120Steps of the measuring trajectory. 40 is enough, 60 is more precise
cfgFLOAT1.000–10As you will use it (Turbo: 1.0)
profiloSTRINGkrea2_turbo_nvfp4File name inside profili/
modalitaCOMBOaccumulaaccumula (accumulate) = averages with the other prompts; re-running the same prompt UPDATES its sample instead of adding one. sostituisci (replace) = start from scratch
modello_riferimentooptMODELOptional: e.g. Krea 2 FP8, to measure the error introduced by NVFP4 quantization

Outputs (3)

NameTypeDescription
latent_riferimentoLATENT—
graficoIMAGE—
reportSTRING—