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Related papers: Lookahead Routing for Large Language Models

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Large language models (LLMs) achieve state-of-the-art accuracy on complex reasoning tasks by generating multiple chain-of-thought (CoT) traces, but using a fixed token budget per query leads to over-computation on easy inputs and…

Artificial Intelligence · Computer Science 2026-02-03 Katrina Brown , Aneesh Muppidi , Rana Shahout

Autoregressive decoding of large language models (LLMs) is memory bandwidth bounded, resulting in high latency and significant wastes of the parallel processing power of modern accelerators. Existing methods for accelerating LLM decoding…

Machine Learning · Computer Science 2024-02-06 Yichao Fu , Peter Bailis , Ion Stoica , Hao Zhang

We propose a novel framework that leverages large language models (LLMs) to guide the rank selection in tensor network models for higher-order data analysis. By utilising the intrinsic reasoning capabilities and domain knowledge of LLMs,…

Machine Learning · Computer Science 2024-10-15 Giorgos Iacovides , Wuyang Zhou , Danilo Mandic

Reasoning language models have demonstrated remarkable performance on many challenging tasks in math, science, and coding. Choosing the right reasoning model for practical deployment involves a performance and cost tradeoff at two key…

Artificial Intelligence · Computer Science 2026-03-12 Nigel Fernandez , Branislav Kveton , Ryan A. Rossi , Andrew S. Lan , Zichao Wang

The proliferation of Large Language Models (LLMs) with varying capabilities and costs has created a need for efficient model selection in AI systems. LLM routers address this need by dynamically choosing the most suitable model for a given…

Machine Learning · Computer Science 2024-10-30 Zesen Zhao , Shuowei Jin , Z. Morley Mao

Large language models (LLMs) excel in most NLP tasks but also require expensive cloud servers for deployment due to their size, while smaller models that can be deployed on lower cost (e.g., edge) devices, tend to lag behind in terms of…

Large Language Models (LLMs) have shown remarkable performance on general Question Answering (QA), yet they often struggle in domain-specific scenarios where accurate and up-to-date information is required. Retrieval-Augmented Generation…

Computation and Language · Computer Science 2026-02-13 Haoyue Bai , Haoyu Wang , Shengyu Chen , Zhengzhang Chen , Lu-An Tang , Wei Cheng , Haifeng Chen , Yanjie Fu

Single large language models (LLMs) often fall short when faced with the ever-growing range of tasks, making a single-model approach insufficient. We address this challenge by proposing ORI (O Routing Intelligence), a dynamic framework that…

Computation and Language · Computer Science 2025-02-18 Ahmad Shadid , Rahul Kumar , Mohit Mayank

Large language models (LLMs) have been widely adopted due to their remarkable performance across various applications, driving the accelerated development of a large number of diverse models. However, these individual LLMs show limitations…

Computation and Language · Computer Science 2025-06-13 Kaushal Kumar Maurya , KV Aditya Srivatsa , Ekaterina Kochmar

Large Language Models (LLMs) for complex reasoning is often hindered by high computational costs and latency, while resource-efficient Small Language Models (SLMs) typically lack the necessary reasoning capacity. Existing collaborative…

Computation and Language · Computer Science 2026-01-09 Chengsong Huang , Tong Zheng , Langlin Huang , Jinyuan Li , Haolin Liu , Jiaxin Huang

Large language model (LLM) routing aims to exploit the specialized strengths of different LLMs for diverse tasks. However, existing approaches typically focus on selecting LLM architectures while overlooking parameter settings, which are…

Computation and Language · Computer Science 2026-01-12 Zihang Tian , Rui Li , Jingsen Zhang , Xiaohe Bo , Wei Huo , Xu Chen

Travel behavior prediction is a core problem in transportation demand management and is traditionally addressed using numerical models calibrated on observed data. With recent advances in large language models (LLMs), new opportunities have…

Machine Learning · Computer Science 2026-03-12 Baichuan Mo , Hanyong Xu , Ruoyun Ma , Jung-Hoon Cho , Dingyi Zhuang , Xiaotong Guo , Jinhua Zhao

Deploying large language models (LLMs) in edge-cloud environments requires an efficient routing strategy to balance cost and response quality. Traditional approaches prioritize either human-preference data or accuracy metrics from benchmark…

Networking and Internet Architecture · Computer Science 2025-02-18 Tuo Zhang , Asal Mehradfar , Dimitrios Dimitriadis , Salman Avestimehr

Large Language Models (LLMs) demonstrate substantial accuracy gains when augmented with reasoning modes such as chain-of-thought and inference-time scaling. However, reasoning also incurs significant costs in inference latency and token…

Emerging Technologies · Computer Science 2025-10-13 Chen Wang , Xunzhuo Liu , Yuhan Liu , Yue Zhu , Xiangxi Mo , Junchen Jiang , Huamin Chen

Large Language Model (LLM) routing is a pivotal technique for navigating a diverse landscape of LLMs, aiming to select the best-performing LLMs tailored to the domains of user queries, while managing computational resources. However,…

Computation and Language · Computer Science 2025-05-23 Haochen Shi , Tianshi Zheng , Weiqi Wang , Baixuan Xu , Chunyang Li , Chunkit Chan , Tao Fan , Yangqiu Song , Qiang Yang

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

Efficiently routing queries to the optimal large language model (LLM) is crucial for optimizing the cost-performance trade-off in multi-model systems. However, most existing routers rely on single-model selection, making them susceptible to…

Machine Learning · Computer Science 2026-03-10 Sai Hao , Hao Zeng , Hongxin Wei , Bingyi Jing

While reasoning-augmented large language models (RLLMs) significantly enhance complex task performance through extended reasoning chains, they inevitably introduce substantial unnecessary token consumption, particularly for simpler problems…

Computation and Language · Computer Science 2025-05-28 Yang He , Xiao Ding , Bibo Cai , Yufei Zhang , Kai Xiong , Zhouhao Sun , Bing Qin , Ting Liu

Multimodal large language models (MLLMs) have advanced rapidly, yet heterogeneity in architecture, alignment strategies, and efficiency means that no single model is uniformly superior across tasks. In practical deployments, workloads span…

Artificial Intelligence · Computer Science 2026-01-27 Haoxuan Ma , Guannan Lai , Han-Jia Ye

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