Researcher

Aohan Zeng

Also known as 曾奥涵

Aohan Zeng researches language models, agent systems, and multimodal reasoning. He coauthored FastMoE in 2021, GLM-130B in 2022, AgentTuning in 2023, and LongBench and GLM-4-Voice in 2024. GLM-4.5 expanded his work to vision-language models and agentic reasoning in 2025; he also discussed smaller mixture-of-experts models at an August 2025 AMA. In 2026, he coauthored GLM-5 and IF-CRITIC; he is a Z.ai researcher and a computer-science PhD student at Tsinghua University.

Now at
Zhipu AI
Works
40
Citations
1,150
h-index
11
Badges

Publication numbers from OpenAlex, as of 18 October 2026.

Timeline

  1. 2021–2022

    From FastMoE to GLM-130B

    In 2021, he coauthors FastMoE, a PyTorch system for distributed mixture-of-experts training. In 2022, he coauthors GLM-130B, a bilingual language model with 130 billion parameters.

  2. 2023

    Tuning language models for agents

    In 2023, he coauthors AgentTuning, a method that enhances LLM agent abilities while maintaining general language-model capabilities.

  3. 2024

    Measuring long context

    He coauthors LongBench, a bilingual multitask benchmark for long-context understanding, in 2024.

  4. 2024

    Building a spoken chatbot

    In 2024, he coauthors GLM-4-Voice, an end-to-end chatbot for real-time spoken conversations in Chinese and English.

  5. July 2025–August 2025

    Vision and agentic GLM models

    In July 2025, he coauthors GLM-4.1V-Thinking and GLM-4.5V, vision-language models for multimodal reasoning. In August 2025, he coauthors GLM-4.5, an open-source model for agentic, reasoning, and coding tasks.

  6. August 2025

    Discussing smaller MoE models

    At GLM-4.5's public AMA in August 2025, he says the team will consider releasing smaller mixture-of-experts models.

  7. 2026

    GLM-5 and IF-CRITIC

    In 2026, he coauthors GLM-5, a foundation model aimed at agentic engineering, and IF-CRITIC, an LLM critic for instruction-following evaluation.

  8. Since 2024

    Z.ai researcher and Tsinghua PhD student

    He joins Z.ai as a researcher in 2024 and is a computer-science PhD student at Tsinghua University, where he starts in 2021.

Career

  1. Since 2024Zhipu AIResearcher

Education

  1. From 2021Tsinghua UniversityPhD

Most-cited works

  1. GLM-130B: An Open Bilingual Pre-trained Model2022 · 281 citations
  2. ChatGLM: A Family of Large Language Models from GLM-130B to GLM-4 All Tools2024 · 183 citationsWith Li Juanzi
  3. LongBench: A Bilingual, Multitask Benchmark for Long Context Understanding2024 · Annual Meeting of the Association for Computational Linguistics (ACL) · 169 citationsWith Li Juanzi
  4. xTrimoPGLM: Unified 100B-Scale Pre-trained Transformer for Deciphering the Language of Protein2023 · 108 citations
  5. AgentBench: Evaluating LLMs as Agents2023 · 75 citations

Sources and credits

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  1. FastMoE: A Fast Mixture-of-Expert Training System arxiv.org. Checked 18 October 2026.
  2. GLM-130B: An Open Bilingual Pre-trained Model arxiv.org. Checked 18 October 2026.
  3. AgentTuning: Enabling Generalized Agent Abilities for LLMs arxiv.org. Checked 18 October 2026.
  4. LongBench: A Bilingual, Multitask Benchmark for Long Context Understanding aclanthology.org. Checked 18 October 2026.
  5. GLM-4-Voice: Towards Intelligent and Human-Like End-to-End Spoken Chatbot arxiv.org. Checked 18 October 2026.
  6. GLM-4.5V and GLM-4.1V-Thinking: Towards Versatile Multimodal Reasoning with Scalable Reinforcement Learning zhipuai.cn. Checked 18 October 2026.
  7. GLM-4.5: Agentic, Reasoning, and Coding (ARC) Foundation Models arxiv.org. Checked 18 October 2026.
  8. 智谱 GLM-4.5 团队深夜爆料:上下文要扩、小模型在路上,还承诺尽快发新模型! infoq.cn. Checked 18 October 2026.
  9. GLM-5: from Vibe Coding to Agentic Engineering arxiv.org. Checked 18 October 2026.
  10. IF-CRITIC: Towards a Fine-Grained LLM Critic for Instruction-Following Evaluation aclanthology.org. Checked 18 October 2026.
  11. Aohan Zeng alphaxiv.org. Checked 18 October 2026.