Why it matters

Rectified flow drives modern image gen. Understanding shapes design.

Advertisement

The architecture

Train velocity field on straight paths.

Rectify: retrain on model's own trajectories.

Rectified flow structureTrain v(x, t)on straight interpolationRectify iterativelyon generated trajectoriesFewer steps1-4 sufficientMultiple rectification rounds; combined with distillation for schnell variants
Rectified flow.
Advertisement

How it works end to end

Liu et al. 2022.

Straighter paths = fewer NFEs.

Rectify: retrain on samples.

SD3 + FLUX use.