A fast base model lays down composition and structure, then a high-fidelity refiner pass adds detail and fixes artifacts, optionally followed by an upscaler.
Properties
family
draft-to-finish
modality
text -> image
whyMultiModel
One model rarely optimizes both global composition and fine detail at once; splitting draft from refine lets a cheap fast pass explore many options and an expensive pass finish only the keepers.
steps
[object Object], [object Object], [object Object]
controls
Shared seed across passes; denoise strength on the refine step; base/refiner step-split ratio; optional control net on the draft.
exampleStack
SDXL base -> SDXL refiner -> 4x ESRGAN upscaler (or FLUX.1 schnell draft -> FLUX.1 dev refine).
useCases
[Hero art and key visuals][Batch concepting then finishing keepers][Print-resolution stills]
pitfalls
Over-denoising the refine step drifts away from the draft composition; a mismatched seed breaks continuity between passes.
