A Survey on Federated Fine-tuning of Large Language Models

• URL: http://arxiv.org/abs/2503.12016v2
• Date: Fri, 27 Jun 2025 07:42:47 GMT
• Title: A Survey on Federated Fine-tuning of Large Language Models
• Authors: Yebo Wu, Chunlin Tian, Jingguang Li, He Sun, Kahou Tam, Zhanting Zhou, Haicheng Liao, Zhijiang Guo, Li Li, Chengzhong Xu,
• Abstract summary: FedLLM offers a promising avenue for collaborative model adaptation while preserving data privacy.<n>To rigorously evaluate FedLLM, we undertake a thorough review of existing fine-tuning datasets and evaluation benchmarks.<n>We identify critical open challenges and outline promising research directions to foster future advancements in FedLLM.
• Score: 21.559090305077273
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Large Language Models (LLMs) have demonstrated impressive success across various tasks. Integrating LLMs with Federated Learning (FL), a paradigm known as FedLLM, offers a promising avenue for collaborative model adaptation while preserving data privacy. This survey provides a systematic and comprehensive review of FedLLM. We begin by tracing the historical development of both LLMs and FL, summarizing relevant prior research to set the context. Subsequently, we delve into an in-depth analysis of the fundamental challenges inherent in deploying FedLLM. Addressing these challenges often requires efficient adaptation strategies; therefore, we conduct an extensive examination of existing Parameter-Efficient Fine-tuning (PEFT) methods and explore their applicability within the FL framework. To rigorously evaluate the performance of FedLLM, we undertake a thorough review of existing fine-tuning datasets and evaluation benchmarks. Furthermore, we discuss FedLLM's diverse real-world applications across multiple domains. Finally, we identify critical open challenges and outline promising research directions to foster future advancements in FedLLM. This survey aims to serve as a foundational resource for researchers and practitioners, offering valuable insights into the rapidly evolving landscape of federated fine-tuning for LLMs. It also establishes a roadmap for future innovations in privacy-preserving AI. We actively maintain a GitHub repo \href{https://github.com/Clin0212/Awesome-Federated-LLM-Learning}{https://github.com/Clin0212/Awesome-Federated-LLM-Learning} to track cutting-edge advancements in this field.

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