Kazem Faghih

Kazem Faghih

PhD Student in Computer Science
University of Maryland, College Park

Advised by Prof. Soheil Feizi

I'm a Computer Science PhD student at the University of Maryland, College Park, advised by Prof. Soheil Feizi. I work on LLM evaluation, reliability, and agentic AI. I study how model behavior changes across equivalent user requests, tool descriptions, and agentic interactions, and I develop better ways to evaluate and improve the reliability of these systems.

Before my PhD, I worked across machine learning research, software engineering, and large-scale data systems, including GPU-accelerated sequence search at the Max Planck Institute and industry work on language models, retrieval-augmented generation, and distributed systems.

Open to Summer 2027 research internships in LLM research, AI evaluation, reliability, and agentic AI.

Portrait of Kazem Faghih

Research

  1. LLM evaluation & reliability

    Looking beyond benchmark accuracy to ask whether a model behaves consistently when equivalent requests are phrased differently.

  2. Agentic & tool-augmented LLMs

    How agents choose and use tools, how sensitive those choices are to tool descriptions and context, and the security of the ecosystems agents rely on.

  3. Better evaluation methods

    Developing evaluation methods that show where a model can be relied on and where it falls short, so that reliability can be measured and improved.

News

  • 2026Your LLM Agents are Temporally Blind accepted to Findings of ACL 2026.
  • 2025Tool Preferences in Agentic LLMs are Unreliable accepted to the EMNLP 2025 Main Conference.
  • Jan 2025Started my PhD at the University of Maryland with Prof. Soheil Feizi, supported by a Dean’s Fellowship.

Publications

  1. arXiv
  2. arXiv

    Same Question, Different Answers: Evaluating LLM Reliability Beyond Accuracy

    K Faghih*, Y Cheng*, S Saha, M Pournemat, A Gerami, S Feizi

  3. Findings of ACL 2026

    Your LLM Agents are Temporally Blind: The Misalignment Between Tool Use Decisions and Human Time Perception

    Y Cheng*, A S Moakhar*, C Fan*, P Hosseini, K Faghih, Z Sodagar, W Wang, S Feizi

  4. arXiv

    Quantifying Document Impact in RAG-LLMs

    A Gerami, K Faghih, R Duraiswami

  5. EMNLP 2025

    Tool Preferences in Agentic LLMs are Unreliable

    K Faghih*, W Wang*, Y Cheng*, S Bharti, G Sriramanan, S Balasubramanian, P Hosseini, S Feizi

    Shows that surface-level edits to tool descriptions can raise selection probability by more than 20× in some settings.

Experience

  1. Jan 2025 – PresentCollege Park, MD

    University of MarylandResearch

    Research Assistant · Advisor: Prof. Soheil Feizi

    Research on LLM and agent reliability: how model behavior varies across user formulations, tool interfaces, and agentic settings.

  2. Apr 2024 – Nov 2024Tehran, Iran

    YektanetIndustry

    Software Engineer

    Built retention-marketing infrastructure for 100M+ contacts delivering 100K+ SMS/push messages per minute, and a user-location service at ~4K requests/second.

  3. Jun 2023 – Apr 2024Tehran, Iran

    Mofid SecuritiesIndustry

    ML Engineer & Data Scientist

    Led development of a Persian generative language model (data curation, pre-training, fine-tuning, evaluation) and built a production retrieval-augmented chatbot.

  4. Aug 2022 – Apr 2023Göttingen, Germany

    Max Planck Institute for Multidisciplinary SciencesResearch

    Research Assistant · Prof. Johannes Söding, with Prof. Martin Steinegger

    Developed a new GPU prefilter for MMseqs2, the protein sequence-search tool used in workflows such as AlphaFold and ColabFold, using CUDA-parallelized ungapped alignment. It ran about 2× faster than the optimized CPU version at comparable sensitivity.

  5. Jun 2022 – Jan 2023Tehran, Iran

    Sharif University of TechnologyResearch

    Research Assistant · Prof. Ali Sharif-Zarchi

    Studied representation learning for peptide-HLA binding prediction using protein language models, AlphaFold-derived representations, and multiple-sequence alignments.

  6. Jul 2020 – Sep 2021Tehran, Iran

    Cafebazaar / Balad MapsIndustry

    Software Engineer & Data Engineer

    Ran backend and data services processing ~200M map records per day; migrated high-throughput services from Django/REST to Go/gRPC on Kubernetes.

  7. Jun 2019 – Sep 2019Tehran, Iran

    NimboIndustry

    Big Data Intern

    Built a distributed search-engine prototype over ~100M documents with Hadoop, Spark, Kafka, Elasticsearch, and PageRank.

Education

  1. Jan 2025 – Expected Dec 2028

    University of Maryland, College Park

    Ph.D. in Computer Science

    Advisor: Prof. Soheil Feizi · Dean’s Fellowship

  2. 2017 – 2022

    Sharif University of Technology

    B.Sc. in Computer Engineering

    Tehran, Iran

Honors & Service

  • 2025Dean’s Fellowship, University of Maryland. Awarded on admission for outstanding academic achievement.
  • 20172nd place nationally out of 145,000+ participants (Mathematics & Physics) in Iran’s university entrance exam (Konkour).
  • ServiceReviewer: ACL, NeurIPS