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As AI moves beyond text, large language models (LLMs) increasingly power vision, audio, and document understanding; however, their high inference costs hinder real-time, scalable deployment. Conversely, smaller open-source models offer cost…

Computation and Language · Computer Science 2025-11-11 Mayank Saini , Arit Kumar Bishwas

We propose a novel approach to enhancing the performance and efficiency of large language models (LLMs) by combining domain prompt routing with domain-specialized models. We introduce a system that utilizes a BERT-based router to direct…

Computation and Language · Computer Science 2024-10-11 Toby Simonds , Kemal Kurniawan , Jey Han Lau

Large language models have achieved remarkable success in various tasks but suffer from high computational costs during inference, limiting their deployment in resource-constrained applications. To address this issue, we propose a novel…

Computation and Language · Computer Science 2025-09-11 Wenhao Zheng , Yixiao Chen , Weitong Zhang , Souvik Kundu , Yun Li , Zhengzhong Liu , Eric P. Xing , Hongyi Wang , Huaxiu Yao

Large language models (LLMs) have achieved remarkable progress across domains and applications but face challenges such as high fine-tuning costs, inference latency, limited edge deployability, and reliability concerns. Small language…

Computation and Language · Computer Science 2025-11-06 Fali Wang , Jihai Chen , Shuhua Yang , Ali Al-Lawati , Linli Tang , Hui Liu , Suhang Wang

Large Language Models (LLMs) have significantly advanced artificial intelligence by optimizing traditional Natural Language Processing (NLP) workflows, facilitating their integration into various systems. Many such NLP systems, including…

Computation and Language · Computer Science 2025-05-13 Jiliang Ni , Jiachen Pu , Zhongyi Yang , Kun Zhou , Hui Wang , Xiaoliang Xiao , Dakui Wang , Xin Li , Jingfeng Luo , Conggang Hu

Large Language Models (LLMs) have demonstrated remarkable capabilities, leading to a significant increase in user demand for LLM services. However, cloud-based LLM services often suffer from high latency, unstable responsiveness, and…

Networking and Internet Architecture · Computer Science 2025-08-04 Jin Yang , Qiong Wu , Zhiying Feng , Zhi Zhou , Deke Guo , Xu Chen

To support emerging language-based applications using dispersed and heterogeneous computing resources, the hybrid language model (HLM) offers a promising architecture, where an on-device small language model (SLM) generates draft tokens…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-26 Seungeun Oh , Jinhyuk Kim , Jihong Park , Seung-Woo Ko , Jinho Choi , Tony Q. S. Quek , Seong-Lyun Kim

Large language model (LLM) routers improve the efficiency of multi-model systems by directing each query to the most appropriate model while leveraging the diverse strengths of heterogeneous LLMs. Most existing approaches frame routing as a…

Computation and Language · Computer Science 2025-10-23 Canbin Huang , Tianyuan Shi , Yuhua Zhu , Ruijun Chen , Xiaojun Quan

Model merging aggregates Large Language Models (LLMs) finetuned on different tasks into a stronger one. However, parameter conflicts between models leads to performance degradation in averaging. While model routing addresses this issue by…

Machine Learning · Computer Science 2025-02-12 Kunfeng Lai , Zhenheng Tang , Xinglin Pan , Peijie Dong , Xiang Liu , Haolan Chen , Li Shen , Bo Li , Xiaowen Chu

While recent advances in large language models (LLMs) have significantly enhanced performance across diverse natural language tasks, the high computational and financial costs associated with their deployment remain substantial barriers.…

Computation and Language · Computer Science 2025-04-16 Soham Shah , Kumar Shridhar , Surojit Chatterjee , Souvik Sen

Large language models (LLMs) are increasingly accessed as remotely hosted services by edge and enterprise clients that cannot run frontier models locally. Since models vary widely in capability and price, routing queries to models that…

Machine Learning · Computer Science 2026-02-02 Baris Askin , Shivam Patel , Anupam Nayak , Andrea Vigano , Jiin Woo , Gauri Joshi , Carlee Joe-Wong

To address the growing demand for on-device LLM inference in resource-constrained environments, hybrid language models (HLM) have emerged, combining lightweight local models with powerful cloud-based LLMs. Recent studies on HLM have…

Machine Learning · Computer Science 2025-08-19 Jihoon Park , Seungeun Oh , Seong-Lyun Kim

Large language model (LLM) routing has emerged as a crucial strategy for balancing computational costs with performance by dynamically assigning queries to the most appropriate model based on query complexity. Despite recent advances…

Computation and Language · Computer Science 2025-04-11 Aly M. Kassem , Bernhard Schölkopf , Zhijing Jin

Large language models (LLMs) are transforming society, powering applications from smartphone assistants to autonomous driving. Yet cloud-based LLM services alone cannot serve a growing class of applications, including those operating under…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Liangqi Yuan , Wenzhi Fang , Shiqiang Wang , H. Vincent Poor , Christopher G. Brinton

Large Language Models (LLMs) herald a transformative era in artificial intelligence (AI). However, the expansive scale of data and parameters of LLMs requires high-demand computational and memory resources, restricting their accessibility…

Machine Learning · Computer Science 2024-11-26 Shengwen Ding , Chenhui Hu

Model routing is a simple technique for reducing the inference cost of large language models (LLMs), wherein one maintains a pool of candidate LLMs, and learns to route each prompt to the smallest feasible LLM. Existing works focus on…

Large language models (LLMs) have shown great potential in natural language processing and content generation. However, current LLMs heavily rely on cloud computing, leading to prolonged latency, high bandwidth cost, and privacy concerns.…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-05-24 Mingjin Zhang , Jiannong Cao , Xiaoming Shen , Zeyang Cui

Increasing demand for Large Language Models (LLMs) services imposes substantial deployment and computation costs on providers. LLM routing offers a cost-efficient solution by directing queries to the optimal LLM based on model and query…

Databases · Computer Science 2025-12-16 Fangzhou Wu , Sandeep Silwal

Large Language Models (LLMs) have garnered considerable attention owing to their remarkable capabilities, leading to an increasing number of companies offering LLMs as services. Different LLMs achieve different performance at different…

Software Engineering · Computer Science 2024-05-27 Yueyue Liu , Hongyu Zhang , Yuantian Miao , Van-Hoang Le , Zhiqiang Li

There is a rapidly growing number of large language models (LLMs) that users can query for a fee. We review the cost associated with querying popular LLM APIs, e.g. GPT-4, ChatGPT, J1-Jumbo, and find that these models have heterogeneous…

Machine Learning · Computer Science 2023-05-10 Lingjiao Chen , Matei Zaharia , James Zou