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Related papers: Universal Model Routing for Efficient LLM Inferenc…

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With the rapid growth of Large Language Models (LLMs) across various domains, numerous new LLMs have emerged, each possessing domain-specific expertise. This proliferation has highlighted the need for quick, high-quality, and cost-effective…

Artificial Intelligence · Computer Science 2024-10-25 Dimitris Stripelis , Zijian Hu , Jipeng Zhang , Zhaozhuo Xu , Alay Dilipbhai Shah , Han Jin , Yuhang Yao , Salman Avestimehr , Chaoyang He

Large Language Model (LLM)-based systems, i.e. interconnected elements that include an LLM as a central component, such as conversational agents, are usually designed with monolithic, static architectures that rely on a single,…

Artificial Intelligence · Computer Science 2025-07-22 Clovis Varangot-Reille , Christophe Bouvard , Antoine Gourru , Mathieu Ciancone , Marion Schaeffer , François Jacquenet

The rapid advancement of large language models (LLMs) and domain-specific AI agents has greatly expanded the ecosystem of AI-powered services. User queries, however, are highly diverse and often span multiple domains and task types,…

Multiagent Systems · Computer Science 2025-09-12 Xiyu Guo , Shan Wang , Chunfang Ji , Xuefeng Zhao , Wenhao Xi , Yaoyao Liu , Qinglan Li , Chao Deng , Junlan Feng

Researchers and practitioners operating on a limited budget face the cost-performance trade-off dilemma. The challenging decision often centers on whether to use a large LLM with better performance or a smaller one with reduced costs. This…

Computation and Language · Computer Science 2025-04-28 Guillem Ramírez , Alexandra Birch , Ivan Titov

The rapid proliferation of Large Language Models (LLMs) has led to a fragmented and inefficient ecosystem, a state of ``model lock-in'' where seamlessly integrating novel models remains a significant bottleneck. Current routing frameworks…

Machine Learning · Computer Science 2026-01-13 Cheng Yan , Wuyang Zhang , Zhiyuan Ning , Fan Xu , Ziyang Tao , Lu Zhang , Bing Yin , Yanyong Zhang

Inference-time computation has greatly enhanced the performance of large language models (LLMs) on challenging reasoning tasks, but this strategy can incur high inference costs. One solution is to route intermediate chain-of-thought (CoT)…

Artificial Intelligence · Computer Science 2026-05-08 Wenwen Si , Insup Lee , Osbert Bastani

Multi-turn, long-horizon tasks are increasingly common for large language models (LLMs), but solving them typically requires many sequential model invocations, accumulating substantial inference costs. Here, we study cost-aware multi-turn…

Computation and Language · Computer Science 2026-04-28 Yiqun Zhang , Hao Li , Zihan Wang , Shi Feng , Xiaocui Yang , Daling Wang , Bo Zhang , Lei Bai , Shuyue Hu

Routing large language models (LLMs) is a new paradigm that uses a router to recommend the best LLM from a pool of candidates for a given input. In this paper, our comprehensive analysis with more than 8,500 LLMs reveals a novel model-level…

Computation and Language · Computer Science 2025-05-21 Zhongzhan Huang , Guoming Ling , Yupei Lin , Yandong Chen , Shanshan Zhong , Hefeng Wu , Liang Lin

Large language model (LLM) routing assigns each query to the most suitable model from an ensemble. We introduce LLMRouterBench, a large-scale benchmark and unified framework for LLM routing. It comprises over 400K instances from 21 datasets…

Artificial Intelligence · Computer Science 2026-01-13 Hao Li , Yiqun Zhang , Zhaoyan Guo , Chenxu Wang , Shengji Tang , Qiaosheng Zhang , Yang Chen , Biqing Qi , Peng Ye , Lei Bai , Zhen Wang , Shuyue Hu

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

Travel choice analysis is crucial for understanding individual travel behavior to develop appropriate transport policies and recommendation systems in Intelligent Transportation Systems (ITS). Despite extensive research, this domain faces…

Artificial Intelligence · Computer Science 2024-06-25 Xuehao Zhai , Hanlin Tian , Lintong Li , Tianyu Zhao

Large Language Models (LLMs) deliver state-of-the-art performance across many tasks but impose high computational and memory costs, limiting their deployment in resource-constrained or real-time settings. To address this, we propose…

Computation and Language · Computer Science 2025-11-14 Nikunj Gupta , Bill Guo , Rajgopal Kannan , Viktor K. Prasanna

Large language models (LLMs) demonstrate remarkable capabilities, but their broad deployment is limited by significant computational resource demands, particularly energy consumption during inference. Static, one-model-fits-all inference…

Performance · Computer Science 2026-03-02 Thomas Ziller , Shashikant Ilager , Alessandro Tundo , Ezio Bartocci , Leonardo Mariani , Ivona Brandic

LLM cascades and model routing promise lower inference cost by sending easy queries to a small model and escalating hard ones to a large model, but most deployed routers use uncalibrated confidence scores and require per-workload threshold…

Machine Learning · Computer Science 2026-05-20 Varun Kotte

In language tasks that require extensive human--model interaction, deploying a single "best" model for every query can be expensive. To reduce inference cost while preserving the quality of the responses, a large language model (LLM) router…

Machine Learning · Computer Science 2025-12-24 Yichi Zhang , Fangzheng Xie , Shu Yang , Chong Wu

The proliferation of Large Language Models (LLMs) has created a diverse ecosystem of models with highly varying performance and costs, necessitating effective query routing to balance performance and expense. Current routing systems often…

Computation and Language · Computer Science 2026-03-03 Hang Zheng , Hongshen Xu , Yongkai Lin , Shuai Fan , Lu Chen , Kai Yu

As large language models (LLMs) grow in scale and specialization, routing--selecting the best model for a given input--has become essential for efficient and effective deployment. While recent methods rely on complex learned routing…

Machine Learning · Computer Science 2026-05-18 Yang Li

The integration of wireless communications and Large Language Models (LLMs) is poised to unlock ubiquitous intelligent services, yet deploying them in wireless edge-device collaborative environments presents a critical trade-off between…

Information Theory · Computer Science 2025-08-18 Rui Bao , Nan Xue , Yaping Sun , Zhiyong Chen

The rapid advancement of large language models has unlocked remarkable capabilities across a diverse array of natural language processing tasks. However, the considerable differences among available LLMs-in terms of cost, performance, and…

Artificial Intelligence · Computer Science 2025-05-23 Yifan Zhang , Xinkui Zhao , Zuxin Wang , Guanjie Cheng , Yueshen Xu , Shuiguang Deng , Jianwei Yin

Large Reasoning Models (LRMs) excel in structured tasks by emulating deliberate human reasoning but often suffer from overthinking, degrading performance and wasting resources. One possible baseline is to deploy both LLM and LRM, then route…

Computation and Language · Computer Science 2025-10-09 Jaeseong Lee , Dayoung Kwon , seung-won hwang