collaborators

20 papers

cs.LG2026

ClawTrack: Towards Trace-Level Evaluation and Improvement of Real-World Autonomous Agents

Xingjian Wu, Xuhang Zhu, Xingchen Liu +6

As LLM-based agents are deployed in complex, multi-step workflows, a critical evaluation gap has emerged: most existing benchmarks judge only final outcomes, unable to distinguish…

cs.LG2026

Contrastive Reinforced Policy Optimization via Privileged Self-Distillation

Xingjian Wu, Junlin Liu, Xingchen Liu +6

Recent advances in post-training Large Language Models (LLMs) increasingly rely on Reinforcement Learning with Verifiable Rewards (RLVR) or On-Policy Self-Distillation (OPSD). Whil…

cs.CL2026

OPERA: Aligning Open-Ended Reasoning via Objective Perplexity-based Reinforcement Learning

Wenxuan Jiang, Zining Fan, Zijian Zhang +6

Reinforcement Learning (RL) has enabled LLMs to excel in objective reasoning tasks such as mathematics and code generation. However, applying RL to open-ended tasks, such as creati…

cs.CL2026

ATLAS: All-round Testing of Long-context Abilities across Scales

Deli Huang, Cunguang Wang, Hongyin Tang +15

Long-context language models now advertise context windows up to millions of tokens, yet evaluations typically report a single length or a narrow task family, masking two failure m…

cs.AI2026

AgentEscapeBench: Evaluating Out-of-Domain Tool-Grounded Reasoning in LLM Agents

Zhengkang Guo, Yiyang Li, Lin Qiu +7

As LLM-based agents increasingly rely on external tools, it is important to evaluate their ability to sustain tool-grounded reasoning beyond familiar workflows and short-range inte…

cs.AI2026

HeavySkill: Heavy Thinking as the Inner Skill in Agentic Harness

Jianing Wang, Linsen Guo, Zhengyu Chen +8

Recent advances in agentic harness with orchestration frameworks that coordinate multiple agents with memory, skills, and tool use have achieved remarkable success in complex reaso…

cs.CL2026

General365: Benchmarking General Reasoning in Large Language Models Across Diverse and Challenging Tasks

Junlin Liu, Shengnan An, Shuang Zhou +10

Contemporary large language models (LLMs) have demonstrated remarkable reasoning capabilities, particularly in specialized domains like mathematics and physics. However, their abil…

cs.CV2026

LARY: A Latent Action Representation Yielding Benchmark for Generalizable Vision-to-Action Alignment

Dujun Nie, Fengjiao Chen, Qi Lv +4

While the shortage of explicit action data limits Vision-Language-Action (VLA) models, human action videos offer a scalable yet unlabeled data source. A critical challenge in utili…

cs.CL2026

TR-ICRL: Test-Time Rethinking for In-Context Reinforcement Learning

Wenxuan Jiang, Yuxin Zuo, Zijian Zhang +8

In-Context Reinforcement Learning (ICRL) enables Large Language Models (LLMs) to learn online from external rewards directly within the context window. However, a central challenge…

cs.CV2026

LongCat-Next: Lexicalizing Modalities as Discrete Tokens

Meituan LongCat Team, Bin Xiao, Chao Wang +86

The prevailing Next-Token Prediction (NTP) paradigm has driven the success of large language models through discrete autoregressive modeling. However, contemporary multimodal syste…

cs.AI2026

LongCat-Flash-Prover: Advancing Native Formal Reasoning via Agentic Tool-Integrated Reinforcement Learning

Jianing Wang, Jianfei Zhang, Qi Guo +24

We introduce LongCat-Flash-Prover, a flagship 560-billion-parameter open-source Mixture-of- Experts (MoE) model that advances Native Formal Reasoning in Lean4 through agentic tool-…

cs.CL2025

UniHetero: Could Generation Enhance Understanding for Vision-Language-Model at Large Data Scale?

Fengjiao Chen, Minhao Jing, Weitao Lu +3

Vision-language large models are moving toward the unification of visual understanding and visual generation tasks. However, whether generation can enhance understanding is still u…

cs.CV2025

EvalTalker: Learning to Evaluate Real-Portrait-Driven Multi-Subject Talking Humans

Yingjie Zhou, Xilei Zhu, Siyu Ren +11

Speech-driven Talking Human (TH) generation, commonly known as "Talker," currently faces limitations in multi-subject driving capabilities. Extending this paradigm to "Multi-Talker…

cs.CV2025

Q-REAL: Towards Realism and Plausibility Evaluation for AI-Generated Content

Shushi Wang, Zicheng Zhang, Chunyi Li +7

Quality assessment of AI-generated content is crucial for evaluating model capability and guiding model optimization. However, most existing quality assessment datasets and models…

cs.CL2025

AMO-Bench: Large Language Models Still Struggle in High School Math Competitions

Shengnan An, Xunliang Cai, Xuezhi Cao +8

We present AMO-Bench, an Advanced Mathematical reasoning benchmark with Olympiad level or even higher difficulty, comprising 50 human-crafted problems. Existing benchmarks have wid…

cs.CL2025

UNO-Bench: A Unified Benchmark for Exploring the Compositional Law Between Uni-modal and Omni-modal in Omni Models

Chen Chen, ZeYang Hu, Fengjiao Chen +6

Multimodal Large Languages models have been progressing from uni-modal understanding toward unifying visual, audio and language modalities, collectively termed omni models. However…

cs.CL2025

SOP-Maze: Evaluating Large Language Models on Complicated Business Standard Operating Procedures

Jiaming Wang, Zhe Tang, Zehao Jin +5

As large language models (LLMs) are widely deployed as domain-specific agents, many benchmarks have been proposed to evaluate their ability to follow instructions and make decision…

cs.SD2025

Audio Turing Test: Benchmarking the Human-likeness of Large Language Model-based Text-to-Speech Systems in Chinese

Xihuai Wang, Ziyi Zhao, Siyu Ren +9

Recent advances in large language models (LLMs) have significantly improved text-to-speech (TTS) systems, enhancing control over speech style, naturalness, and emotional expression…

cs.CV2025

ViC-Bench: Benchmarking Visual-Interleaved Chain-of-Thought Capability in MLLMs with Free-Style Intermediate State Representations

Xuecheng Wu, Jiaxing Liu, Danlei Huang +8

Visual-Interleaved Chain-of-Thought (VI-CoT) enables Multi-modal Large Language Models (MLLMs) to continually update their understanding and decision space based on step-wise inter…

cs.CV2025

Q-Eval-100K: Evaluating Visual Quality and Alignment Level for Text-to-Vision Content

Zicheng Zhang, Tengchuan Kou, Shushi Wang +9

Evaluating text-to-vision content hinges on two crucial aspects: visual quality and alignment. While significant progress has been made in developing objective models to assess the…