Simpler Diffusion (SiD2): 1.5 FID on ImageNet512 with pixel-space diffusion
On the map: Diffusion models → Diffusion foundations and sampling
Abstract (arXiv)
Latent diffusion models have become the popular choice for scaling up diffusion models for high resolution image synthesis. Compared to pixel-space models that are trained end-to-end, latent models are perceived to be more efficient and to produce higher image quality at high resolution. Here we challenge these notions, and show that pixel-space models can be very competitive to latent models both in quality and efficiency, achieving 1.5 FID on ImageNet512 and new SOTA results on ImageNet128, ImageNet256 and Kinetics600. We present a simple recipe for scaling end-to-end pixel-space diffusion models to high resolutions. 1: Use the sigmoid loss-weighting (Kingma & Gao, 2023) with our prescribed hyper-parameters. 2: Use our simplified memory-efficient architecture with fewer skip-connections. 3: Scale the model to favor processing the image at a high resolution with fewer parameters, rather than using more parameters at a lower resolution. Combining these with guidance intervals, we obtain a family of pixel-space diffusion models we call Simpler Diffusion (SiD2).
Key facts. Cited by 74 papers in the map (data through 7 Oct 2026). Placed in Diffusion foundations and sampling, one of 14 directions in Diffusion models. Builds on 47 of its 53 references that are in the map. First posted on arXiv 25 Oct 2024.
Builds on
47 of 53 references.
Closest ancestors · 29
Same direction, newest first
- 2024MegaFusion: Extend Diffusion Models towards Higher-resolution Image Generation without Further Tuning20 Aug
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- 2023Simple diffusion: End-to-end diffusion for high resolution images26 Jan
- 2023On the Importance of Noise Scheduling for Diffusion Models26 Jan
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- 2022All are Worth Words: A ViT Backbone for Diffusion Models25 Sep
- 2022Elucidating the Design Space of Diffusion-Based Generative Models1 Jun
- 2021High-Resolution Image Synthesis with Latent Diffusion Models20 Dec
- 2021Tackling the Generative Learning Trilemma with Denoising Diffusion GANs15 Dec
- 2021Variational Diffusion Models1 Jul
- 2021Cascaded Diffusion Models for High Fidelity Image Generation30 May
- 2021Diffusion Models Beat GANs on Image Synthesis11 May
- 2020Score-Based Generative Modeling through Stochastic Differential Equations26 Nov
- 2020Denoising Diffusion Probabilistic Models19 Jun
Other references · 18
- 2020An Image is Worth 16x16 Words: Transformers for Image Recognition at Scalecited by 29,915
- 2015U-Net: Convolutional Networks for Biomedical Image Segmentationcited by 19,604
- 2022Photorealistic Text-to-Image Diffusion Models with Deep Language Understandingcited by 6,322
- 2022Flow Matching for Generative Modelingcited by 5,426
- 2014Fully Convolutional Networks for Semantic Segmentationcited by 4,845
- 2022Video Diffusion Modelscited by 2,280
- 2018Glow: Generative Flow with Invertible 1x1 Convolutionscited by 1,539
- 2022Scaling Autoregressive Models for Content-Rich Text-to-Image Generationcited by 1,287
- 2022eDiff-I: Text-to-Image Diffusion Models with an Ensemble of Expert Denoiserscited by 921
- 2023Language Model Beats Diffusion -- Tokenizer is Key to Visual Generationcited by 633
- 2022StyleGAN-XL: Scaling StyleGAN to Large Diverse Datasetscited by 489
- 2022MAGVIT: Masked Generative Video Transformercited by 341
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- 2023Photorealistic Video Generation with Diffusion Modelscited by 304
- 2022Scalable Adaptive Computation for Iterative Generationcited by 190
- 2023UFOGen: You Forward Once Large Scale Text-to-Image Generation via Diffusion GANscited by 165
- 2024Rolling Diffusion Modelscited by 102
- 2024CogView3: Finer and Faster Text-to-Image Generation via Relay Diffusioncited by 72
- 2023SCEdit: Efficient and Controllable Image Diffusion Generation via Skip Connection Editingcited by 37
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Citing papers per year: 2025: 36; 2026: 38.
74 papers.
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