LLM Agent Evaluation

LLM: Large Language Model

Overview

The field studies whether language-model agents can use tools, manage state, follow instructions, and achieve users’ goals across multi-step interactions. Benchmarks place agents in executable settings such as coding repositories, websites, terminals, business workflows, and medical or scientific tasks, while methods use hidden tests, state checks, trajectory analysis, and simulated users to assess performance. Evaluation increasingly includes cost, latency, privacy, safety, consistency, and process quality—not just whether the final answer is correct. Results remain difficult to compare because harnesses and scoring choices can change rankings, and strong performance on short or isolated tasks often fails to transfer to long-horizon real-world work.

Latest papers

CardsList

1,221 papers231 papers in the last four weeks, up 62% on the four weeks before. 1.3% of all new papers.

  1. Can LLM Teams Play What? Where? When?

    May 28, 2026Anastasia Kotelnikova, Viktor Byzov, Maria Dolzhenkova +1Multi-Agent LLM SystemsLLM Agent Evaluation

  2. SpecBench: Evaluating Specification-Level Reasoning for Software Engineering LLM Agents

    May 28, 2026Grant Hamblin, Kevin Song, Zhanda Zhu +4Requirements EngineeringSoftware Engineering Agents

  3. Specialize Roles, Mix Deployments: Pushing the Cost-Accuracy Frontier of LLM Agent Teams

    May 28, 2026Yinsicheng Jiang, Liang Cheng, Yeqi Huang +6Multi-Agent LLM SystemsLLM Agent Evaluation

  4. HEART-Bench: Do LLMs Make Persona-Consistent Decisions?

    May 28, 2026Weihan Peng, Chenxu Zhang, Qianao Wang +7Personality Modeling in Language ModelsHuman Behavior Simulation

  5. Does The Way You Plan Matter? An Empirical Study of Planning Representations for LLM Web Agents

    May 28, 2026Alejandra Zambrano, Sara Vera Marjanovic, Imene Kerboua +2LLM Agent EvaluationLLM Agent Planning

  6. Redundant or Necessary? A Benchmark for Detecting Redundant Steps in Agent Trajectories

    May 28, 2026Liang Zhu, Bo Yang, Zhinuo Zhou +5LLM Agent EvaluationAgent Trajectory Analysis

  7. Evolutionary Dynamics of Cooperation in Next-Generation LLM Agent Systems: A Cross-Provider Empirical Extension

    May 28, 2026Francisco León Zúñiga BolívarMulti-Agent LLM SystemsLLM Agent Evaluation

  8. Realistic honeypot evaluations for scheming propensity

    May 28, 2026Victoria Krakovna, David Lindner, Lewis Ho +2LLM Agent EvaluationAI Agent Safety

  9. PTCG-Bench: Can LLM Agents Master Pokémon Trading Card Game?

    May 28, 2026Dongdong Hua, Yifei Sun, Renhong Huang +3Game-Playing AgentsLLM Agent Evaluation

  10. BenchTrace: A Benchmark for Testing Reflection Ability and Controlled Evolution in LLM Agents

    May 28, 2026Jiahao Huang, Fei Cheng, Junfeng Jiang +2LLM Agent EvaluationSelf-Reflection in Language Model Agents

  11. Hallucination Mitigation with Agentic AI, Nested Learning, and AI Sustainability via Semantic Caching

    May 27, 2026Diego Gosmar, Deborah A. DahlAI Agent ReliabilityMulti-Agent LLM Systems

  12. Frontier LLM-based agents can overcome the ontology curation bottleneck for natural phenotypes

    May 27, 2026James P. Balhoff, Hilmar LappLLM-Assisted AnnotationLLM Agent Evaluation

  13. Do Agents Need Semantic Metadata? A Comparative Study in Agentic Data Retrieval

    May 27, 2026Shiyu Chen, Tarfah Alrashed, Alon Halevy +1LLM Agent EvaluationAgentic Retrieval

  14. LiveBrowseComp: Are Search Agents Searching, or Just Verifying What They Already Know?

    May 27, 2026HuiMing Fan, Xiao Wang, Zheng Chu +5Computer-Use Agent BenchmarksLLM Agent Evaluation

  15. Evaluating the Realism of LLM-powered Social Agents: A Case Study of Reactions to Spanish Online News

    May 27, 2026Alejandro Buitrago López, Alberto Ortega Pastor, Javier Pastor-Galindo +1LLM Agent EvaluationLarge Language Model-Based Social Simulation

  16. A Matter of TASTE: Improving Coverage and Difficulty of Agent Benchmarks

    May 27, 2026Tomer Keren, Nitay Calderon, Asaf Yehudai +3Computer-Use Agent BenchmarksTool-Use Evaluation

  17. Beyond One Path: Evaluating and Enhancing Divergent Thinking in Interactive LLM Agents

    May 27, 2026Jihyeong Park, Ingeol Baek, Jeonghyun Park +1LLM Agent EvaluationAI Agent Benchmarks

  18. From Knowing to Doing: A Memory-Controlled Benchmark for LLM Trading Agents on Stock Markets

    May 27, 2026Taojie Zhu, Wentao Zhao, Rui Sun +7Benchmark ContaminationLLM Agent Evaluation

  19. OR-Space: A Full-Lifecycle Workspace Benchmark for Industrial Optimization Agents

    May 27, 2026Chenyu Zhou, Xinyun Lu, Jiangyue Zhao +3LLM Agent EvaluationAI Agent Benchmarks

  20. Ask Now, Use Later: Benchmarking the Proactivity Gap in Long-Lived LLM Agents

    May 27, 2026Bin Wu, Guanyun Zou, Bingbing Wang +2Proactive AssistanceLLM Agent Memory

  21. Harness-Bench: Evaluating Agent Harnesses across Models and Realistic Workflows

    May 27, 2026Yilun Yao, Xinyu Tan, Chao-Hsuan Liu +10Computer-Use Agent BenchmarksAI Agent Reliability

  22. UniACE: A Unified Framework for Evaluating LLM Agentic Capabilities

    May 27, 2026Pengyu Zhu, Lijun Li, Yaxing Lyu +8LLM Agent EvaluationAI Agent Benchmarks

  23. Got a Secret? LLM Agents Can't Keep It: Evaluating Privacy in Multi-Agent Systems

    May 26, 2026Aman Priyanshu, Supriti Vijay, Esha PahwaAI Agent Safety BenchmarksMulti-Agent LLM Systems

  24. UserHarness: Harnessing User Minds for Stronger Agent Theory-of-Mind

    May 26, 2026Cheng Qian, Jiayu Liu, Heng JiTheory of MindLLM Agent Evaluation