MultiLoRA: Democratizing LoRA for Better Multi-Task Learning
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Abstract (arXiv)
LoRA achieves remarkable resource efficiency and comparable performance when adapting LLMs for specific tasks. Since ChatGPT demonstrated superior performance on various tasks, there has been a growing desire to adapt one model for all tasks. However, the explicit low-rank of LoRA limits the adaptation performance in complex multi-task scenarios. LoRA is dominated by a small number of top singular vectors while fine-tuning decomposes into a set of less important unitary transforms. In this paper, we propose MultiLoRA for better multi-task adaptation by reducing the dominance of top singular vectors observed in LoRA. MultiLoRA scales LoRA modules horizontally and change parameter initialization of adaptation matrices to reduce parameter dependency, thus yields more balanced unitary subspaces. We unprecedentedly construct specialized training data by mixing datasets of instruction follow, natural language understanding, world knowledge, to cover semantically and syntactically different samples. With only 2.5% of additional parameters, MultiLoRA outperforms single LoRA counterparts and fine-tuning on multiple benchmarks and model scales. Further investigation into weight update matrices of MultiLoRA exhibits reduced dependency on top singular vectors and more democratic unitary transform contributions.
Key facts. Cited by 32 papers in the map (data through 7 Oct 2026). Builds on 27 of its 32 references that are in the map. First posted on arXiv 20 Nov 2023.
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27 of 32 references.
References · 27
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- 2020Language Models are Few-Shot Learnerscited by 32,199
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15 more
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- 2021On the Effectiveness of Adapter-based Tuning for Pretrained Language Model Adaptationcited by 147
- 2022AdaMix: Mixture-of-Adaptations for Parameter-efficient Model Tuningcited by 137
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- 2023One Adapter for All Programming Languages? Adapter Tuning for Code Search and Summarizationcited by 16
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Citing papers per year: 2024: 12; 2025: 15; 2026: 5.
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- 2024GaLore: Memory-Efficient LLM Training by Gradient Low-Rank Projectioncited by 447
- 2024HydraLoRA: An Asymmetric LoRA Architecture for Efficient Fine-Tuningcited by 118
- 2024Chain of LoRA: Efficient Fine-tuning of Language Models via Residual Learningcited by 80
- 2024A Survey on LoRA of Large Language Modelscited by 67
- 2024Memory-Efficient LLM Training with Online Subspace Descentcited by 37
- 2024Q-GaLore: Quantized GaLore with INT4 Projection and Layer-Adaptive Low-Rank Gradientscited by 36
- 2025Make LoRA Great Again: Boosting LoRA with Adaptive Singular Values and Mixture-of-Experts Optimization Alignmentcited by 22
- 2024VeLoRA: Memory Efficient Training using Rank-1 Sub-Token Projectionscited by 18
- 2025FedALT: Federated Fine-Tuning through Adaptive Local Training with Rest-of-World LoRAcited by 13
- 2025GaLore 2: Large-Scale LLM Pre-Training by Gradient Low-Rank Projectioncited by 13
- 2024Parameter-Efficient Fine-Tuning of Large Language Models using Semantic Knowledge Tuningcited by 10
- 2025Ensembles of Low-Rank Expert Adapterscited by 9
20 more
- 2024Task-Aware Low-Rank Adaptation of Segment Anything Modelcited by 6
- 2024Simple Drop-in LoRA Conditioning on Attention Layers Will Improve Your Diffusion Modelcited by 6
- 2025MetaTT: A Global Tensor-Train Adapter for Parameter-Efficient Fine-Tuningcited by 4
- 2025MoORE: SVD-based Model MoE-ization for Conflict- and Oblivion-Resistant Multi-Task Adaptationcited by 4
- 2024Multi LoRA Meets Vision: Merging multiple adapters to create a multi task modelcited by 3
- 2025Pay Attention to Small Weightscited by 3
- 2025One Model for All Tasks: Leveraging Efficient World Models in Multi-Task Planningcited by 3
- 2024SBoRA: Low-Rank Adaptation with Regional Weight Updatescited by 2
- 2025MetaLoRA: Tensor-Enhanced Adaptive Low-Rank Fine-tuningcited by 2
- 2026A Unified Study of LoRA Variants: Taxonomy, Review, Codebase, and Empirical Evaluationcited by 2
- 2025KARST: Multi-Kernel Kronecker Adaptation with Re-Scaling Transmission for Visual Classificationcited by 1
- 2025Memory-Efficient LLM Training by Various-Grained Low-Rank Projection of Gradientscited by 1
- 2025MLorc: Momentum Low-rank Compression for Memory Efficient Large Language Model Adaptationcited by 1
- 2025MASA: Rethinking the Representational Bottleneck in LoRA with Multi-A Shared Adaptationcited by 1
- 2025MeTA-LoRA: Data-Efficient Multi-Task Fine-Tuning for Large Language Modelscited by 1
- 2025FALQON: Accelerating LoRA Fine-tuning with Low-Bit Floating-Point Arithmeticcited by 1
- 2026ReMix: Reinforcement routing for mixtures of LoRAs in LLM finetuningcited by 1
- 2026Crab+: A Scalable and Unified Audio-Visual Scene Understanding Model with Explicit Cooperationcited by 0
- 2026PEML: Parameter-efficient Multi-Task Learning with Optimized Continuous Promptscited by 0
- 2026The Other Half of the Memory Wall: Serving 35B MoEs from SSD with Trained Routing Predictioncited by 0
- 2026The Other Half of the Memory Wall: Serving 35B MoEs from SSD with Trained Routing Prediction16 Sep 2026
- 2026PEML: Parameter-efficient Multi-Task Learning with Optimized Continuous Prompts13 May 2026
- 2026ReMix: Reinforcement routing for mixtures of LoRAs in LLM finetuning10 Mar 2026
- 2026Crab+: A Scalable and Unified Audio-Visual Scene Understanding Model with Explicit Cooperation4 Mar 2026
- 2026A Unified Study of LoRA Variants: Taxonomy, Review, Codebase, and Empirical Evaluation30 Jan 2026
- 2025FALQON: Accelerating LoRA Fine-tuning with Low-Bit Floating-Point Arithmetic28 Oct 2025
- 2025MeTA-LoRA: Data-Efficient Multi-Task Fine-Tuning for Large Language Models13 Oct 2025
- 2025MASA: Rethinking the Representational Bottleneck in LoRA with Multi-A Shared Adaptation7 Oct 2025
- 2025One Model for All Tasks: Leveraging Efficient World Models in Multi-Task Planning9 Sep 2025
- 2025Pay Attention to Small Weights26 Jun 2025
- 2025MoORE: SVD-based Model MoE-ization for Conflict- and Oblivion-Resistant Multi-Task Adaptation17 Jun 2025
- 2025MetaTT: A Global Tensor-Train Adapter for Parameter-Efficient Fine-Tuning10 Jun 2025
20 more
- 2025MLorc: Momentum Low-rank Compression for Memory Efficient Large Language Model Adaptation2 Jun 2025
- 2025Memory-Efficient LLM Training by Various-Grained Low-Rank Projection of Gradients3 May 2025
- 2025GaLore 2: Large-Scale LLM Pre-Training by Gradient Low-Rank Projection29 Apr 2025
- 2025MetaLoRA: Tensor-Enhanced Adaptive Low-Rank Fine-tuning1 Apr 2025
- 2025FedALT: Federated Fine-Tuning through Adaptive Local Training with Rest-of-World LoRA14 Mar 2025
- 2025Make LoRA Great Again: Boosting LoRA with Adaptive Singular Values and Mixture-of-Experts Optimization Alignment24 Feb 2025
- 2025KARST: Multi-Kernel Kronecker Adaptation with Re-Scaling Transmission for Visual Classification10 Feb 2025
- 2025Ensembles of Low-Rank Expert Adapters31 Jan 2025
- 2024Multi LoRA Meets Vision: Merging multiple adapters to create a multi task model21 Nov 2024
- 2024Parameter-Efficient Fine-Tuning of Large Language Models using Semantic Knowledge Tuning11 Oct 2024
- 2024Memory-Efficient LLM Training with Online Subspace Descent23 Aug 2024
- 2024Q-GaLore: Quantized GaLore with INT4 Projection and Layer-Adaptive Low-Rank Gradients11 Jul 2024
- 2024A Survey on LoRA of Large Language Models8 Jul 2024
- 2024SBoRA: Low-Rank Adaptation with Regional Weight Updates7 Jul 2024
- 2024VeLoRA: Memory Efficient Training using Rank-1 Sub-Token Projections28 May 2024
- 2024Simple Drop-in LoRA Conditioning on Attention Layers Will Improve Your Diffusion Model7 May 2024
- 2024HydraLoRA: An Asymmetric LoRA Architecture for Efficient Fine-Tuning30 Apr 2024
- 2024Task-Aware Low-Rank Adaptation of Segment Anything Model16 Mar 2024
- 2024GaLore: Memory-Efficient LLM Training by Gradient Low-Rank Projection6 Mar 2024
- 2024Chain of LoRA: Efficient Fine-tuning of Language Models via Residual Learning8 Jan 2024
- 2025Make LoRA Great Again: Boosting LoRA with Adaptive Singular Values and Mixture-of-Experts Optimization Alignmentcited by 22
- 2025FedALT: Federated Fine-Tuning through Adaptive Local Training with Rest-of-World LoRAcited by 13
- 2025MoORE: SVD-based Model MoE-ization for Conflict- and Oblivion-Resistant Multi-Task Adaptationcited by 4
- 2026The Other Half of the Memory Wall: Serving 35B MoEs from SSD with Trained Routing Predictioncited by 0
- 2026The Other Half of the Memory Wall: Serving 35B MoEs from SSD with Trained Routing Prediction16 Sep 2026
- 2025MoORE: SVD-based Model MoE-ization for Conflict- and Oblivion-Resistant Multi-Task Adaptation17 Jun 2025
- 2025FedALT: Federated Fine-Tuning through Adaptive Local Training with Rest-of-World LoRA14 Mar 2025
- 2025Make LoRA Great Again: Boosting LoRA with Adaptive Singular Values and Mixture-of-Experts Optimization Alignment24 Feb 2025
- 2024GaLore: Memory-Efficient LLM Training by Gradient Low-Rank Projectioncited by 447
- 2024HydraLoRA: An Asymmetric LoRA Architecture for Efficient Fine-Tuningcited by 118
- 2024Chain of LoRA: Efficient Fine-tuning of Language Models via Residual Learningcited by 80
- 2024A Survey on LoRA of Large Language Modelscited by 67
- 2024Memory-Efficient LLM Training with Online Subspace Descentcited by 37
- 2024Q-GaLore: Quantized GaLore with INT4 Projection and Layer-Adaptive Low-Rank Gradientscited by 36
- 2024VeLoRA: Memory Efficient Training using Rank-1 Sub-Token Projectionscited by 18
- 2025GaLore 2: Large-Scale LLM Pre-Training by Gradient Low-Rank Projectioncited by 13
- 2024Parameter-Efficient Fine-Tuning of Large Language Models using Semantic Knowledge Tuningcited by 10
- 2025Ensembles of Low-Rank Expert Adapterscited by 9
- 2024Task-Aware Low-Rank Adaptation of Segment Anything Modelcited by 6
- 2025MetaTT: A Global Tensor-Train Adapter for Parameter-Efficient Fine-Tuningcited by 4
12 most cited of 25 All 25 (JSON)
- 2026PEML: Parameter-efficient Multi-Task Learning with Optimized Continuous Prompts13 May 2026
- 2026ReMix: Reinforcement routing for mixtures of LoRAs in LLM finetuning10 Mar 2026
- 2026Crab+: A Scalable and Unified Audio-Visual Scene Understanding Model with Explicit Cooperation4 Mar 2026
- 2026A Unified Study of LoRA Variants: Taxonomy, Review, Codebase, and Empirical Evaluation30 Jan 2026
- 2025FALQON: Accelerating LoRA Fine-tuning with Low-Bit Floating-Point Arithmetic28 Oct 2025
- 2025MeTA-LoRA: Data-Efficient Multi-Task Fine-Tuning for Large Language Models13 Oct 2025
- 2025Pay Attention to Small Weights26 Jun 2025
- 2025MetaTT: A Global Tensor-Train Adapter for Parameter-Efficient Fine-Tuning10 Jun 2025
- 2025MLorc: Momentum Low-rank Compression for Memory Efficient Large Language Model Adaptation2 Jun 2025
- 2025Memory-Efficient LLM Training by Various-Grained Low-Rank Projection of Gradients3 May 2025
- 2025GaLore 2: Large-Scale LLM Pre-Training by Gradient Low-Rank Projection29 Apr 2025
- 2025MetaLoRA: Tensor-Enhanced Adaptive Low-Rank Fine-tuning1 Apr 2025
12 newest of 25 All 25 (JSON)