Classifier-free guidance / Classifier-free diffusion guidance

Steer a diffusion model at sampling time by extrapolating between its conditional and unconditional predictions.

Findings

• IC-024Reward model trained on local scaling of Stable Diffusion can guide generation to increase diversity and aesthetic scores [compared-to]
• IC-1436Imagen Video 5.6B produces high-quality but domain-inappropriate videos on out-of-distribution robotics and egocentric data, failing to generate relevant dynamics [supporting]