Bayesian Flow Networks
On the map: Diffusion models → Flow matching, time series and science
Abstract (arXiv)
This paper introduces Bayesian Flow Networks (BFNs), a new class of generative model in which the parameters of a set of independent distributions are modified with Bayesian inference in the light of noisy data samples, then passed as input to a neural network that outputs a second, interdependent distribution. Starting from a simple prior and iteratively updating the two distributions yields a generative procedure similar to the reverse process of diffusion models; however it is conceptually simpler in that no forward process is required. Discrete and continuous-time loss functions are derived for continuous, discretised and discrete data, along with sample generation procedures. Notably, the network inputs for discrete data lie on the probability simplex, and are therefore natively differentiable, paving the way for gradient-based sample guidance and few-step generation in discrete domains such as language modelling. The loss function directly optimises data compression and places no restrictions on the network architecture. In our experiments BFNs achieve competitive log-likelihoods for image modelling on dynamically binarized MNIST and CIFAR-10, and outperform all known discrete diffusion models on the text8 character-level language modelling task.
Key facts. Cited by 62 papers in the map (data through 7 Oct 2026). Placed in Flow matching, time series and science, one of 14 directions in Diffusion models. Builds on 37 of its 50 references that are in the map. First posted on arXiv 14 Aug 2023.
Builds on
37 of 50 references.
References · 37
- 2020Denoising Diffusion Probabilistic Modelscited by 20,851
- 2021High-Resolution Image Synthesis with Latent Diffusion Modelscited by 18,694
- 2020Score-Based Generative Modeling through Stochastic Differential Equationscited by 8,964
- 2021Diffusion Models Beat GANs on Image Synthesiscited by 8,185
- 2015Deep Unsupervised Learning using Nonequilibrium Thermodynamicscited by 7,005
- 2021Improved Denoising Diffusion Probabilistic Modelscited by 3,736
- 2016Gaussian Error Linear Units (GELUs)cited by 3,431
- 2015Variational Inference with Normalizing Flowscited by 2,161
- 2021Structured Denoising Diffusion Models in Discrete State-Spacescited by 1,665
- 2019Generating Long Sequences with Sparse Transformerscited by 1,523
- 2021Variational Diffusion Modelscited by 1,145
- 2022Diffusion-LM Improves Controllable Text Generationcited by 1,006
25 more
- 2018Image Transformercited by 770
- 2020NVAE: A Deep Hierarchical Variational Autoencodercited by 635
- 2021Score-based Generative Modeling in Latent Spacecited by 634
- 2021Argmax Flows and Multinomial Diffusion: Learning Categorical Distributionscited by 566
- 2013Generating Sequences With Recurrent Neural Networkscited by 549
- 2017PixelCNN++: Improving the PixelCNN with Discretized Logistic Mixture Likelihood and Other Modificationscited by 415
- 2022Analog Bits: Generating Discrete Data using Diffusion Models with Self-Conditioningcited by 362
- 2020Very Deep VAEs Generalize Autoregressive Models and Can Outperform Them on Imagescited by 261
- 2021Autoregressive Diffusion Modelscited by 208
- 2022Continuous diffusion for categorical datacited by 202
- 2022Learning Fast Samplers for Diffusion Models by Differentiating Through Sample Qualitycited by 181
- 2019Adaptive Attention Span in Transformerscited by 148
- 2022Self-conditioned Embedding Diffusion for Text Generationcited by 114
- 2021Soft Truncation: A Universal Training Technique of Score-based Diffusion Model for High Precision Score Estimationcited by 95
- 2019Practical Lossless Compression with Latent Variables using Bits Back Codingcited by 85
- 2023Reflected Diffusion Modelscited by 81
- 2018Generating High Fidelity Images with Subscale Pixel Networks and Multidimensional Upscalingcited by 74
- 2019Discrete Flows: Invertible Generative Models of Discrete Datacited by 68
- 2019Latent Normalizing Flows for Discrete Sequencescited by 66
- 2022Training and Inference on Any-Order Autoregressive Models the Right Waycited by 64
- 2023TESS: Text-to-Text Self-Conditioned Simplex Diffusioncited by 63
- 2021Consistency Regularization for Variational Auto-Encoderscited by 50
- 2022Categorical SDEs with Simplex Diffusioncited by 42
- 2020Locally Masked Convolution for Autoregressive Modelscited by 22
- 2019PixelVAE++: Improved PixelVAE with Discrete Priorcited by 15
Built on by
Citing papers per year: 2023: 5; 2024: 16; 2025: 27; 2026: 14.
62 papers.
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- 2025Large Language Diffusion Modelscited by 872
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- 2024Simplified and Generalized Masked Diffusion for Discrete Datacited by 606
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- 2024Scaling up Masked Diffusion Models on Textcited by 195
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- 2024Simple Guidance Mechanisms for Discrete Diffusion Modelscited by 148
- 2025LLaDA-V: Large Language Diffusion Models with Visual Instruction Tuningcited by 145
- 2024Energy-Based Diffusion Language Models for Text Generationcited by 86
- 2025A Survey on Latent Reasoningcited by 71
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38 more
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- 2025Target Concrete Score Matching: A Holistic Framework for Discrete Diffusioncited by 25
- 2024UniGEM: A Unified Approach to Generation and Property Prediction for Moleculescited by 20
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- 2024Unified Generative Modeling of 3D Molecules via Bayesian Flow Networkscited by 18
- 2023Idempotent Generative Networkcited by 17
- 2025A Periodic Bayesian Flow for Material Generationcited by 15
- 2025Space Group Equivariant Crystal Diffusioncited by 15
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- 2025Symmetry-Aware Bayesian Flow Networks for Crystal Generationcited by 9
- 2025Straight-Line Diffusion Model for Efficient 3D Molecular Generationcited by 8
- 2025Flexible Language Modeling in Continuous Space with Transformer-based Autoregressive Flowscited by 8
- 2025RFG: Test-Time Scaling for Diffusion Large Language Model Reasoning with Reward-Free Guidancecited by 7
- 2024Empower Structure-Based Molecule Optimization with Gradient Guided Bayesian Flow Networkscited by 6
- 2025Piloting Structure-Based Drug Design via Modality-Specific Optimal Schedulecited by 6
- 2025Prior-Guided Flow Matching for Target-Aware Molecule Design with Learnable Atom Numbercited by 6
- 2026Membership Inference Attacks Against Fine-tuned Diffusion Language Modelscited by 5
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- 2026Auto-Regressive Masked Diffusion Modelscited by 4
- 2025ShortListing Model: A Streamlined SimplexDiffusion for Discrete Variable Generationcited by 3
- 2025Generative Models for Crystalline Materialscited by 3
- 20263D Molecule Generation from Rigid Motifs via SE(3) Flowscited by 3
- 2026Generalized Discrete Diffusion from Snapshotscited by 3
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- 2024ParamReL: Learning Parameter Space Representation via Progressively Encoding Bayesian Flow Networkscited by 2
- 2024Posterior Mean Matching: Generative Modeling through Online Bayesian Inferencecited by 2
- 2025Controllable 3D Molecular Generation for Structure-Based Drug Design Through Bayesian Flow Networks and Gradient Integrationcited by 2
- 2023Lecture Notes in Probabilistic Diffusion Modelscited by 1
- 2024Sifting through the Noise: A Survey of Diffusion Probabilistic Models and Their Applications to Biomoleculescited by 1
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- 2025MolPIF: A Parameter Interpolation Flow Model for Molecule Generationcited by 1
- 2025Transport-Coupled Bayesian Flows for Molecular Graph Generationcited by 1
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- 2026A Unified Measure-Theoretic View of Diffusion, Score-Based, and Flow Matching Generative Modelscited by 1
- 2026Efficient Long-Context Modeling in Diffusion Language Models via Block Approximate Sparse Attentioncited by 1
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50 most cited of 62 All 62 (JSON)
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- 2026Fused Bayesian Flow Networks for Dual-Target Molecular Design2 Aug 2026
- 2026Equilibrium Training of Energy-Based Models with Parallel Trajectory Tempering29 Jul 2026
- 2026Demystifying Multimodal Biomolecular Co-design With Intrinsic Geodesic Coupling1 Jun 2026
- 2026Efficient Long-Context Modeling in Diffusion Language Models via Block Approximate Sparse Attention19 May 2026
- 2026A Unified Measure-Theoretic View of Diffusion, Score-Based, and Flow Matching Generative Models7 May 2026
- 2026Generalized Discrete Diffusion from Snapshots22 Mar 2026
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- 2026Variational Bayesian Flow Network for Graph Generation30 Jan 2026
- 2026EvoEGF-Mol: Evolving Exponential Geodesic Flow for Structure-based Drug Design30 Jan 2026
- 2026Membership Inference Attacks Against Fine-tuned Diffusion Language Models27 Jan 2026
38 more
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- 20263D Molecule Generation from Rigid Motifs via SE(3) Flows23 Jan 2026
- 2025Generative Models for Crystalline Materials27 Nov 2025
- 2025SculptDrug : A Spatial Condition-Aware Bayesian Flow Model for Structure-based Drug Design16 Nov 2025
- 2025Transport-Coupled Bayesian Flows for Molecular Graph Generation11 Oct 2025
- 2025RFG: Test-Time Scaling for Diffusion Large Language Model Reasoning with Reward-Free Guidance29 Sep 2025
- 2025Prior-Guided Flow Matching for Target-Aware Molecule Design with Learnable Atom Number1 Sep 2025
- 2025Controllable 3D Molecular Generation for Structure-Based Drug Design Through Bayesian Flow Networks and Gradient Integration29 Aug 2025
- 2025MolMark: Safeguarding Molecular Structures through Learnable Atom-Level Watermarking25 Aug 2025
- 2025ShortListing Model: A Streamlined SimplexDiffusion for Discrete Variable Generation24 Aug 2025
- 2025Seed Diffusion: A Large-Scale Diffusion Language Model with High-Speed Inference4 Aug 2025
- 2025MolPIF: A Parameter Interpolation Flow Model for Molecule Generation18 Jul 2025
- 2025AMix-1: A Pathway to Test-Time Scalable Protein Foundation Model11 Jul 2025
- 2025A Survey on Latent Reasoning8 Jul 2025
- 2025Flexible Language Modeling in Continuous Space with Transformer-based Autoregressive Flows1 Jul 2025
- 2025LLaDA-V: Large Language Diffusion Models with Visual Instruction Tuning22 May 2025
- 2025Space Group Equivariant Crystal Diffusion16 May 2025
- 2025Piloting Structure-Based Drug Design via Modality-Specific Optimal Schedule12 May 2025
- 2025Target Concrete Score Matching: A Holistic Framework for Discrete Diffusion23 Apr 2025
- 2025IgCraft: A versatile sequence generation framework for antibody discovery and engineering25 Mar 2025
- 2025UniMoMo: Unified Generative Modeling of 3D Molecules for De Novo Binder Design25 Mar 2025
- 2025PharMolixFM: All-Atom Foundation Models for Molecular Modeling and Generation12 Mar 2025
- 2025Block Diffusion: Interpolating Between Autoregressive and Diffusion Language Models12 Mar 2025
- 2025Straight-Line Diffusion Model for Efficient 3D Molecular Generation4 Mar 2025
- 2025Continuous Diffusion Model for Language Modeling17 Feb 2025
- 2025Large Language Diffusion Models14 Feb 2025
- 2025Generative Modeling with Bayesian Sample Inference11 Feb 2025
- 2025Symmetry-Aware Bayesian Flow Networks for Crystal Generation5 Feb 2025
- 2025A Periodic Bayesian Flow for Material Generation4 Feb 2025
- 2024Posterior Mean Matching: Generative Modeling through Online Bayesian Inference17 Dec 2024
- 2024Sampling Out-of-Distribution Chemical Spaces via Bayesian Flow16 Dec 2024
- 2024Simple Guidance Mechanisms for Discrete Diffusion Models13 Dec 2024
- 2024Empower Structure-Based Molecule Optimization with Gradient Guided Bayesian Flow Networks20 Nov 2024
- 2024Energy-Based Diffusion Language Models for Text Generation28 Oct 2024
- 2024Marked Temporal Bayesian Flow Point Processes25 Oct 2024
- 2024Scaling up Masked Diffusion Models on Text24 Oct 2024
- 2024UniGEM: A Unified Approach to Generation and Property Prediction for Molecules14 Oct 2024
- 2024Simplified and Generalized Masked Diffusion for Discrete Data6 Jun 2024
50 newest of 62 All 62 (JSON)
- 2025Large Language Diffusion Modelscited by 872
- 2023Discrete Diffusion Modeling by Estimating the Ratios of the Data Distributioncited by 712
- 2024Simplified and Generalized Masked Diffusion for Discrete Datacited by 606
- 2025Block Diffusion: Interpolating Between Autoregressive and Diffusion Language Modelscited by 385
- 2024Scaling up Masked Diffusion Models on Textcited by 195
- 2025Seed Diffusion: A Large-Scale Diffusion Language Model with High-Speed Inferencecited by 173
- 2024Simple Guidance Mechanisms for Discrete Diffusion Modelscited by 148
- 2024Energy-Based Diffusion Language Models for Text Generationcited by 86
- 2024Categorical Flow Matching on Statistical Manifoldscited by 43
- 2023TokenCompose: Text-to-Image Diffusion with Token-level Supervisioncited by 40
- 2025Continuous Diffusion Model for Language Modelingcited by 29
- 2025Target Concrete Score Matching: A Holistic Framework for Discrete Diffusioncited by 25
12 most cited of 23 All 23 (JSON)
- 2026Efficient Long-Context Modeling in Diffusion Language Models via Block Approximate Sparse Attention19 May 2026
- 2026A Unified Measure-Theoretic View of Diffusion, Score-Based, and Flow Matching Generative Models7 May 2026
- 2026Generalized Discrete Diffusion from Snapshots22 Mar 2026
- 2026Variational Bayesian Flow Network for Graph Generation30 Jan 2026
- 2026Membership Inference Attacks Against Fine-tuned Diffusion Language Models27 Jan 2026
- 2026Auto-Regressive Masked Diffusion Models23 Jan 2026
- 2025Seed Diffusion: A Large-Scale Diffusion Language Model with High-Speed Inference4 Aug 2025
- 2025Target Concrete Score Matching: A Holistic Framework for Discrete Diffusion23 Apr 2025
- 2025Block Diffusion: Interpolating Between Autoregressive and Diffusion Language Models12 Mar 2025
- 2025Straight-Line Diffusion Model for Efficient 3D Molecular Generation4 Mar 2025
- 2025Continuous Diffusion Model for Language Modeling17 Feb 2025
- 2025Large Language Diffusion Models14 Feb 2025
12 newest of 23 All 23 (JSON)
- 2026Bayesian Flow Networks for Offline Trajectory Planningcited by 0
- 2026Bayesian Flow Networks for Offline Trajectory Planning25 Aug 2026
- 2024MolCRAFT: Structure-Based Drug Design in Continuous Parameter Spacecited by 48
- 2024UniGEM: A Unified Approach to Generation and Property Prediction for Moleculescited by 20
- 2024Arrows of Time for Large Language Modelscited by 18
- 2023Idempotent Generative Networkcited by 17
- 2025A Periodic Bayesian Flow for Material Generationcited by 15
- 2025Space Group Equivariant Crystal Diffusioncited by 15
- 2025UniMoMo: Unified Generative Modeling of 3D Molecules for De Novo Binder Designcited by 11
- 2025Symmetry-Aware Bayesian Flow Networks for Crystal Generationcited by 9
- 2025Flexible Language Modeling in Continuous Space with Transformer-based Autoregressive Flowscited by 8
- 2024Empower Structure-Based Molecule Optimization with Gradient Guided Bayesian Flow Networkscited by 6
- 2025Piloting Structure-Based Drug Design via Modality-Specific Optimal Schedulecited by 6
- 2025Prior-Guided Flow Matching for Target-Aware Molecule Design with Learnable Atom Numbercited by 6
12 most cited of 35 All 35 (JSON)
- 2026TreeRef-BFN: Equivariance-Free De Novo Molecule Generation based on 2D Topology and Internal 3D Geometry26 Sep 2026
- 2026Fused Bayesian Flow Networks for Dual-Target Molecular Design2 Aug 2026
- 2026Equilibrium Training of Energy-Based Models with Parallel Trajectory Tempering29 Jul 2026
- 2026Demystifying Multimodal Biomolecular Co-design With Intrinsic Geodesic Coupling1 Jun 2026
- 2026General Proximal Flow Networks28 Feb 2026
- 2026EvoEGF-Mol: Evolving Exponential Geodesic Flow for Structure-based Drug Design30 Jan 2026
- 20263D Molecule Generation from Rigid Motifs via SE(3) Flows23 Jan 2026
- 2025Generative Models for Crystalline Materials27 Nov 2025
- 2025SculptDrug : A Spatial Condition-Aware Bayesian Flow Model for Structure-based Drug Design16 Nov 2025
- 2025Transport-Coupled Bayesian Flows for Molecular Graph Generation11 Oct 2025
- 2025Prior-Guided Flow Matching for Target-Aware Molecule Design with Learnable Atom Number1 Sep 2025
- 2025Controllable 3D Molecular Generation for Structure-Based Drug Design Through Bayesian Flow Networks and Gradient Integration29 Aug 2025
12 newest of 35 All 35 (JSON)
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