GLM-Z1-Rumination: An Open Frontier-Class Reasoning Model Through Test-Time Scaling

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https://www.prnewswire.com/news-releases/zai-unveils-new-glm-open-source-models-with-world-class-reasoning-performance-302429306.html

Connected researchers

Jingren Zhou is Chief Technology Officer of Alibaba Cloud. Public speaker biographies describe him as a computer scientist and entrepreneur whose work includes large-scale AI and cloud systems.

Zhifeng Chen's public homepage describes him as a distinguished software engineer at Google Brain focused on large-scale computer systems and machine learning applications.

Z.ai report author listed on GLM-Z1, GLM-4.5, GLM-4.1V/4.5V, and GLM-5 materials, with report-backed work on reasoning, coding, agentic, and multimodal models.

Z.ai report author listed on GLM-Z1, GLM-4.5, GLM-4.1V/4.5V, and GLM-5 materials, with report-backed work on reasoning, agentic, and multimodal models.

Public report authorship links Yizhe Yang to the GLM-Z1-Rumination: An Open Frontier-Class Reasoning Model Through Test-Time Scaling at Z.ai.

Public report authorship links Pengxiang Cheng to the GLM-Z1-Rumination: An Open Frontier-Class Reasoning Model Through Test-Time Scaling at Z.ai.

Xueyan Zou is an assistant professor in the College of AI at Tsinghua University. Her official Tsinghua page says she works on interactive embodied intelligence powered by world models, dexterous control and sensing, and embodied foundation models, after receiving a Ph.D. in computer science from the University of Wisconsin-Madison and then becoming a postdoctoral fellow at UC San Diego's Contextual Robotics Institute.

Public report authorship links Xinhua Cheng to the GLM-Z1-Rumination: An Open Frontier-Class Reasoning Model Through Test-Time Scaling at Z.ai.

Public report authorship links Zhongzheng Ren to the GLM-Z1-Rumination: An Open Frontier-Class Reasoning Model Through Test-Time Scaling at Z.ai.

Yuxiang Zheng is a Ph.D. student in electrical and computer engineering at Memorial University of Newfoundland. The homepage says Yuxiang Zheng received double B.Eng. degrees in electronics and electrical engineering from the University of Glasgow and the University of Electronic Science and Technology of China in 2021, an M.Sc. with distinction in communications and signal processing from Imperial College London in 2022, and studies reinforcement learning and quantum machine learning for 6G vehicular networks.

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Jingren Zhou

Zhifeng Chen

Yipeng Wang

Zihan Jiang

Yizhe Yang

Pengxiang Cheng

Xueyan Zou

Xinhua Cheng

Zhongzheng Ren

Yuxiang Zheng