2026
On the Collapse of Generative Paths: A Criterion and Correction for Diffusion Steering
ICML 2026poster
Inference-time steering adapts pretrained diffusion and flow models to new tasks without retraining, often utilizing ratio-of-densities constructions that reweight time-indexed marginals with fixed exponents. We identify Marginal Path Collapse, a failure mode in which the intermediate density define…