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Large Language Models (LLMs) struggle with long-context reasoning, not only due to the quadratic scaling of computational complexity with sequence length but also because of the scarcity and expense of annotating long-context data. There…

Computation and Language · Computer Science 2025-04-18 Linda He , Jue Wang , Maurice Weber , Shang Zhu , Ben Athiwaratkun , Ce Zhang

The ability of large language models (LLMs) to recall and retrieve information from long contexts is critical for many real-world applications. Prior work (Liu et al., 2023) reported that LLMs suffer significant drops in retrieval accuracy…

Information Retrieval · Computer Science 2025-11-11 Max McKinnon

Position-controlled evaluation is standard for retrieval tasks such as Needle-in-a-Haystack and RULER, but mainstream reasoning benchmarks do not control positional placement of target tasks in long contexts. We audit 11 long-context…

Computation and Language · Computer Science 2026-05-25 Chuyifei Zhang , Hongyu Cui , Xiaowen Huang , Jitao Sang

Large Language Models (LLMs) have made significant progress in dialogue, yet redundant memory contexts severely limit their effectiveness in long-term dialogue agents. External memory systems have been proposed to improve memory…

Information Retrieval · Computer Science 2026-05-28 Tan Wang , Yunwei Dong

Efficient on-device language models around 1 billion parameters are essential for powering low-latency AI applications on mobile and wearable devices. However, achieving strong performance in this model class, while supporting long context…

Large language models (LLMs) now solve multi-step problems by emitting extended chains of thought. During the process, they often re-derive the same intermediate steps across problems, inflating token usage and latency. This saturation of…

Machine Learning · Computer Science 2025-09-17 Aniket Didolkar , Nicolas Ballas , Sanjeev Arora , Anirudh Goyal

Large Language Models (LLMs) exhibit catastrophic performance degradation when processing contexts approaching certain critical thresholds, even when information remains relevant. This intelligence degradation-defined as over 30% drop in…

Computation and Language · Computer Science 2026-01-23 Weiwei Wang , Jiyong Min , Weijie Zou

Embedding vision-language models (VLMs) are typically pretrained with short text windows (<77 tokens), which forces the truncation of long-format captions. Yet, the distribution of biomedical captions from large-scale open source literature…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Min Woo Sun , Alejandro Lozano , Javier Gamazo Tejero , Vishwesh Nath , Xiao Xiao Sun , James Burgess , Yuhui Zhang , Kun Yuan , Robert Tibshirani , Sean Huver , Serena Yeung-Levy

Recent advancements in long-context language models (LCLMs) promise to transform Retrieval-Augmented Generation (RAG) by simplifying pipelines. With their expanded context windows, LCLMs can process entire knowledge bases and perform…

Computation and Language · Computer Science 2025-06-10 Yifu Qiu , Varun Embar , Yizhe Zhang , Navdeep Jaitly , Shay B. Cohen , Benjamin Han

Large language model (LLM) agents on multi-step tasks suffer reasoning degradation, looping, drift, stuck states, at rates up to 30% on hard tasks. Current solutions include hard step limits (abrupt) or LLM-as-judge monitoring (10-15%…

Artificial Intelligence · Computer Science 2026-04-16 Rafflesia Khan , Nafiul Islam Khan

Recent advances have been improving the context windows of Large Language Models (LLMs). To quantify the real long-context capabilities of LLMs, evaluators such as the popular Needle in a Haystack have been developed to test LLMs over a…

Software Engineering · Computer Science 2024-06-11 Jiawei Liu , Jia Le Tian , Vijay Daita , Yuxiang Wei , Yifeng Ding , Yuhan Katherine Wang , Jun Yang , Lingming Zhang

Purpose: To evaluate the accuracy and reasoning ability of DeepSeek-R1 and three other recently released large language models (LLMs) in bilingual complex ophthalmology cases. Methods: A total of 130 multiple-choice questions (MCQs) related…

Computation and Language · Computer Science 2025-02-26 Pusheng Xu , Yue Wu , Kai Jin , Xiaolan Chen , Mingguang He , Danli Shi

Although large language models (LLMs) demonstrate impressive performance for many language tasks, most of them can only handle texts a few thousand tokens long, limiting their applications on longer sequence inputs, such as books, reports,…

Computation and Language · Computer Science 2024-06-21 Yushi Bai , Xin Lv , Jiajie Zhang , Hongchang Lyu , Jiankai Tang , Zhidian Huang , Zhengxiao Du , Xiao Liu , Aohan Zeng , Lei Hou , Yuxiao Dong , Jie Tang , Juanzi Li

Large language models (LLMs) excel across diverse natural language processing tasks but face resource demands and limited context windows. Although techniques like pruning, quantization, and token dropping can mitigate these issues, their…

Computation and Language · Computer Science 2025-08-04 Ammar Ahmed , Sheng Di , Franck Cappello , Zirui Liu , Jingoo Han , Ali Anwar

We present the first comprehensive, large-scale study of training long-context vision language models up to 344K context, targeting long-document visual question answering with measured transfer to long-context text. While several such…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Austin Veselka

Long-context memory systems often fail under fixed budgets, but end-to-end evaluation does not reveal whether evidence was discarded during compression or preserved but never retrieved. We introduce a four-condition diagnostic protocol that…

Computation and Language · Computer Science 2026-05-26 Jiangnan Yu , Kisson Songqi Lin , Jilong Wu

Existing benchmarks for evaluating long-context language models (LCLMs) primarily focus on long-context recall, requiring models to produce short responses based on a few critical snippets while processing thousands of irrelevant tokens. We…

Computation and Language · Computer Science 2025-09-30 Xi Ye , Fangcong Yin , Yinghui He , Joie Zhang , Howard Yen , Tianyu Gao , Greg Durrett , Danqi Chen

Recent large language models (LLMs) have demonstrated versatile capabilities in long-context scenarios. Although some recent benchmarks have been developed to evaluate the long-context capabilities of LLMs, there is a lack of benchmarks…

Computation and Language · Computer Science 2024-10-08 Lei Wang , Shan Dong , Yuhui Xu , Hanze Dong , Yalu Wang , Amrita Saha , Ee-Peng Lim , Caiming Xiong , Doyen Sahoo

Enabling long-context understanding remains a key challenge in scaling existing sequence models -- a crucial component in developing generally intelligent models that can process and operate over long temporal horizons that potentially…

Machine Learning · Computer Science 2025-02-05 Hao Liu , Wilson Yan , Matei Zaharia , Pieter Abbeel

Recently, significant efforts have been devoted to enhancing the long-context capabilities of Large Language Models (LLMs), particularly in long-context reasoning. To facilitate this research, we propose \textbf{DetectiveQA}, a dataset…

Computation and Language · Computer Science 2025-03-17 Zhe Xu , Jiasheng Ye , Xiaoran Liu , Xiangyang Liu , Tianxiang Sun , Zhigeng Liu , Qipeng Guo , Linlin Li , Qun Liu , Xuanjing Huang , Xipeng Qiu