mlsanityData to 7 Oct 2026

ReLU Strikes Back: Exploiting Activation Sparsity in Large Language Models

arXiv 2310.04564 ↗First posted 6 Oct 2023cs.LG cs.AIcited by 91

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Abstract (arXiv)

Large Language Models (LLMs) with billions of parameters have drastically transformed AI applications. However, their demanding computation during inference has raised significant challenges for deployment on resource-constrained devices. Despite recent trends favoring alternative activation functions such as GELU or SiLU, known for increased computation, this study strongly advocates for reinstating ReLU activation in LLMs. We demonstrate that using the ReLU activation function has a negligible impact on convergence and performance while significantly reducing computation and weight transfer. This reduction is particularly valuable during the memory-bound inference step, where efficiency is paramount. Exploring sparsity patterns in ReLU-based LLMs, we unveil the reutilization of activated neurons for generating new tokens and leveraging these insights, we propose practical strategies to substantially reduce LLM inference computation up to three times, using ReLU activations with minimal performance trade-offs.

Key facts. Cited by 91 papers in the map (data through 7 Oct 2026). Builds on 69 of its 84 references that are in the map. First posted on arXiv 6 Oct 2023.

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69 of 84 references.

References · 69

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Citing papers per year: 2023: 3; 2024: 33; 2025: 34; 2026: 21.

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  1. 2023PowerInfer: Fast Large Language Model Serving with a Consumer-grade GPUcited by 210
  2. 2024Cost-Efficient Large Language Model Serving for Multi-turn Conversations with CachedAttentioncited by 159
  3. 2024GEAR: An Efficient KV Cache Compression Recipe for Near-Lossless Generative Inference of LLMcited by 155
  4. 2023SparQ Attention: Bandwidth-Efficient LLM Inferencecited by 119
  5. 2024Fiddler: CPU-GPU Orchestration for Fast Inference of Mixture-of-Experts Modelscited by 69
  6. 2024ReLU2 Wins: Discovering Efficient Activation Functions for Sparse LLMscited by 66
  7. 2024Training-Free Activation Sparsity in Large Language Modelscited by 51
  8. 2024ProSparse: Introducing and Enhancing Intrinsic Activation Sparsity within Large Language Modelscited by 43
  9. 2024CATS: Contextually-Aware Thresholding for Sparsity in Large Language Modelscited by 41
  10. 2024Turbo Sparse: Achieving LLM SOTA Performance with Minimal Activated Parameterscited by 37
  11. 2025Beyond Matryoshka: Revisiting Sparse Coding for Adaptive Representationcited by 25
  12. 2024Q-Sparse: All Large Language Models can be Fully Sparsely-Activatedcited by 24
38 more
  1. 2024Configurable Foundation Models: Building LLMs from a Modular Perspectivecited by 22
  2. 2024Sparsing Law: Towards Large Language Models with Greater Activation Sparsitycited by 22
  3. 2025Mixture of Experts Made Intrinsically Interpretablecited by 22
  4. 2024Prompt-prompted Adaptive Structured Pruning for Efficient LLM Generationcited by 20
  5. 2024Learn To be Efficient: Build Structured Sparsity in Large Language Modelscited by 19
  6. 2025R-Sparse: Rank-Aware Activation Sparsity for Efficient LLM Inferencecited by 18
  7. 2025You Only Prune Once: Designing Calibration-Free Model Compression With Policy Learningcited by 16
  8. 2024ESPACE: Dimensionality Reduction of Activations for Model Compressioncited by 15
  9. 2025Instruction-Following Pruning for Large Language Modelscited by 14
  10. 2024Decomposing the Neurons: Activation Sparsity via Mixture of Experts for Continual Test Time Adaptationcited by 10
  11. 2024Efficient LLM Inference using Dynamic Input Pruning and Cache-Aware Maskingcited by 10
  12. 2025FloE: On-the-Fly MoE Inference on Memory-constrained GPUcited by 9
  13. 2025SparseLoRA: Accelerating LLM Fine-Tuning with Contextual Sparsitycited by 9
  14. 2024HiRE: High Recall Approximate Top-k Estimation for Efficient LLM Inferencecited by 7
  15. 2024Designing Large Foundation Models for Efficient Training and Inference: A Surveycited by 7
  16. 2025Activation Approximations Can Incur Safety Vulnerabilities Even in Aligned LLMs: Comprehensive Analysis and Defensecited by 7
  17. 2025Mustafar: Promoting Unstructured Sparsity for KV Cache Pruning in LLM Inferencecited by 7
  18. 2023Language Modeling on a SpiNNaker 2 Neuromorphic Chipcited by 6
  19. 2024Unification of Symmetries Inside Neural Networks: Transformer, Feedforward and Neural ODEcited by 6
  20. 2024Learning Neural Networks with Sparse Activationscited by 6
  21. 2025DuoGPT: Training-free Dual Sparsity through Activation-aware Pruning in LLMscited by 6
  22. 2025BlockFFN: Towards End-Side Acceleration-Friendly Mixture-of-Experts with Chunk-Level Activation Sparsitycited by 6
  23. 2024Maxwell's Demon at Work: Efficient Pruning by Leveraging Saturation of Neuronscited by 5
  24. 2024ReLUs Are Sufficient for Learning Implicit Neural Representationscited by 5
  25. 2024Exploring the Benefit of Activation Sparsity in Pre-trainingcited by 5
  26. 2024Post-Training Statistical Calibration for Higher Activation Sparsitycited by 5
  27. 2025μnit Scaling: Simple and Scalable FP8 LLM Trainingcited by 5
  28. 2025Temporal Action Detection Model Compression by Progressive Block Dropcited by 5
  29. 2025Polar Sparsity: High Throughput Batched LLM Inferencing with Scalable Contextual Sparsitycited by 5
  30. 2025Spark Transformer: Reactivating Sparsity in FFN and Attentioncited by 5
  31. 2025La RoSA: Enhancing LLM Efficiency via Layerwise Rotated Sparse Activationcited by 5
  32. 2025Universal Properties of Activation Sparsity in Modern Large Language Modelscited by 5
  33. 2026CSRv2: Unlocking Ultra-Sparse Embeddingscited by 5
  34. 2024Neuralink: Fast LLM Inference on Smartphones with Neuron Co-Activation Linkingcited by 4
  35. 2025Curvature Tuning: Provable Training-free Model Steering From a Single Parametercited by 4
  36. 2025PLM: Efficient Peripheral Language Models Hardware-Co-Designed for Ubiquitous Computingcited by 4
  37. 2026PowLU: An Activation Function for Stable Pre-Training of LLMscited by 4
  38. 2024The SkipSponge Attack: Sponge Weight Poisoning of Deep Neural Networkscited by 3

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