DPM-Solver++ can generate high-quality samples in only 15 steps, which is much faster than all the previous training-free samplers for guided sampling. (IMAGE)

Beijing Zhongke Journal Publising Co. Ltd.

DPM-Solver++ can generate high-quality samples in only 15 steps, which is much faster than all the previous training-free samplers for guided sampling.

Caption

Previous high-order solvers are unstable for guided sampling: Samples use the pre-trained DPMs on ImageNet 256 256 with a classifier guidance scale 8.0, varying different samplers (and different solver orders) with only function evaluations. : DDIM with the dynamic thresholding. Our proposed DPM-Solver++ (detailed in Algorithm 2) can generate better samples than the first-order DDIM, while other high-order samplers are worse than DDIM.

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Beijing Zhongke Journal Publising Co. Ltd.

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