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Consistency Models Made Easy

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arxiv 2406.14548 v2 pith:3MCGYVRF submitted 2024-06-20 cs.LG cs.CV

classification cs.LGcs.CV
keywords consistencymodelstrainingdiffusionefficiencyachieveseasyexample
verification ladder T0 review T1 audit T2 compute T3 formal
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Consistency models (CMs) offer faster sampling than traditional diffusion models, but their training is resource-intensive. For example, as of 2024, training a state-of-the-art CM on CIFAR-10 takes one week on 8 GPUs. In this work, we propose an effective scheme for training CMs that largely improves the efficiency of building such models. Specifically, by expressing CM trajectories via a particular differential equation, we argue that diffusion models can be viewed as a special case of CMs. We can thus fine-tune a consistency model starting from a pretrained diffusion model and progressively approximate the full consistency condition to stronger degrees over the training process. Our resulting method, which we term Easy Consistency Tuning (ECT), achieves vastly reduced training times while improving upon the quality of previous methods: for example, ECT achieves a 2-step FID of 2.73 on CIFAR10 within 1 hour on a single A100 GPU, matching Consistency Distillation trained for hundreds of GPU hours. Owing to this computational efficiency, we investigate the scaling laws of CMs under ECT, showing that they obey the classic power law scaling, hinting at their ability to improve efficiency and performance at larger scales. Our code (https://github.com/locuslab/ect) is publicly available, making CMs more accessible to the broader community.

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Forward citations

Cited by 10 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    Amortized Fréchet Distance uses neural nets to match conditional means and covariances, yielding stronger one-step visual generators than explicit FD-loss or multi-step teachers.

  3. Parallel Decoding Distillation for Fast Image and Video Generation

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    A trajectory-based distillation method trains a student to predict multiple mean velocities per network evaluation, enabling 4-8 step generation with competitive quality and improved diversity.

  4. From Draft to Draft-Free: One-Step Video Object Removal via Privileged Distillation and Fast Planting

    cs.CV 2026-07 conditional novelty 6.0 of 10

    A one-step, draft-free video object removal model trained by distilling a ground-truth-conditioned teacher reaches comparable or better quality than multi-step diffusion methods while running in about 1 second.

  5. Dual-End Consistency Model

    cs.CV 2026-02 unverdicted novelty 6.0 of 10

    DE-CM trains a flow-map consistency model on three sub-trajectories (coupling, instantaneous, noise-to-noisy) and reports 1.70 FID one-step on ImageNet 256.

  6. Transition Matching Distillation for Fast Video Generation

    cs.CV 2026-01 conditional novelty 6.0 of 10

    Splitting a video diffusion model into a fixed feature extractor and a small recurrent flow head lets TMD generate videos in one to two effective steps with better VBench scores than prior distilled models.

  7. MACS: Measurement-Aware Consistency Sampling for Inverse Problems

    eess.IV 2025-10 conditional novelty 6.0 of 10

    MACS replaces the variance term in aDDIM with a measurement residual, yielding better FID/KID than fast ODE baselines in two-step consistency-model inverse problems.

  8. Revisiting Diffusion Models: From Generative Pre-training to One-Step Generation

    cs.LG 2025-06 conditional novelty 6.0 of 10

    Fine-tuning a pretrained diffusion model with a GAN objective and most weights frozen yields a one-step generator that matches or beats prior distillation methods on several datasets.

  9. Continuous Semi-Implicit Models

    stat.ML 2025-06 conditional novelty 6.0 of 10

    CoSIM extends hierarchical semi-implicit variational inference to continuous time, yielding a simulation-free, multistep consistency-style distillation of pretrained diffusion models.

  10. DLM-One: Diffusion Language Models for One-Step Sequence Generation

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