Haoran (Jensen) Yuan

PhD Student · Computer Engineering · University of Illinois Urbana-Champaign

My research focuses on efficient AI, especially on how to make embodied AI generalizable, scalable, and efficient. I build visuo-tactile world-action models that adapt pretrained video models to touch without separate tactile pretraining, letting robots reason about contact that cameras cannot see. I also develop lossless parallel drafting methods that speed up large-model inference several times without changing its outputs. I am also interested in representation learning and recursive self-improvement (RSI), and I am currently exploring agentic robotics and reinforcement learning for world-action models.

I am a PhD student in PLAN Lab at UIUC, advised by Prof. Ismini Lourentzou. I have also worked with BAIR at UC Berkeley and Hao AI Lab at UC San Diego. Before my PhD, I received an M.S. in Computer Engineering from UIUC, a dual B.S. from UIUC and Zhejiang University, and interned as a software engineer at Snowflake.

News

Research Experience

PLAN Lab, University of Illinois Urbana-Champaign
Graduate Researcher / Ph.D. Student
2025.09 ~ present · Urbana, IL · Advisor: Ismini Lourentzou
Visiting Researcher
2026.04 ~ present · Berkeley, CA · Advisors: Wei Zhan, Ismini Lourentzou, and Trevor Darrell
Hao AI Lab, UC San Diego
Research Collaborator
2026.02 ~ present · San Diego, CA · Advisor: Hao Zhang
Software Engineering Intern
2025.05 ~ 2025.08 · Menlo Park, CA · Predictive autoscaling for GS clusters

Education

University of Illinois Urbana-Champaign
Ph.D. in Computer Engineering
2026.08 ~ present · Advisor: Ismini Lourentzou
M.S. in Computer Engineering
2024.09 ~ 2026.05
B.S. in Electrical Engineering, Minor in Computer Science
2020.09 ~ 2024.06
Zhejiang University
B.Eng. in Computer Engineering (ZJU-UIUC dual degree)
2020.09 ~ 2024.06 · Hangzhou, China

Research

* equal contribution  ·  † project lead  ·  ‡ equal advising  ·  highlighted papers are projects I led

DexTacWAM: A Visuo-Tactile World-Action Model for Dexterous Manipulation
Haoran Yuan†, Zekai Wang, Boning Shao, Haoran Lu, Trevor Darrell, Ismini Lourentzou‡, Wei Zhan‡
arXiv, 2026 Project Lead

Extends a video diffusion world model with fingertip touch on a 22-DoF bimanual robot so it can predict contact the cameras cannot see. Reaches 70.6% average success on six real-robot tasks, against 38.0% for the strongest baseline.

VTAM: Video-Tactile-Action Models for Complex Physical Interaction Beyond VLAs
Haoran Yuan*†, Weigang Yi*, Zhenyu Zhang*, Wendi Chen*, Yuchen Mo, Jiashi Yin, Xinzhuo Li, Xiangyu Zeng, Chuan Wen, Cewu Lu, Katherine Driggs-Campbell, Ismini Lourentzou
arXiv, 2026 Project Lead

Adds tactile streams to a pretrained video transformer through lightweight modality-transfer fine-tuning, with a tactile regularization loss that keeps vision from dominating. Reaches 90% average success on contact-rich tasks such as chip pick-and-place and cucumber peeling.

JetSpec++
JetSpec++: Foresight Parallel Drafting with Self Refinements
Zhaoxiang Feng*, Lanxiang Hu*, Haoran Yuan, Yu-Yang Qian, Jihui Yang, Peng Zhao, Yibo Zhu, Tajana Rosing, Hao Zhang
arXiv, 2026 Core Contributor

Conditions each drafted token on its full branch history and pre-drafts the next block during verification. Up to 7.45× faster than autoregressive decoding and 1.54× faster than DSpark on Qwen3-8B.

JetSpec causal draft head
JetSpec: Breaking the Scaling Ceiling of Speculative Decoding with Parallel Tree Drafting
Lanxiang Hu, Zhaoxiang Feng, Yulun Wu, Haoran Yuan, Yujie Zhao, Yu-Yang Qian, Bojun Wang, Peng Zhao, Daxin Jiang, Yibo Zhu, Tajana Rosing, Hao Zhang
arXiv, 2026 Core Contributor

A causal draft head that emits a full speculative tree in one forward pass while keeping the target model's autoregressive factorization along every branch. Up to 9.64× end-to-end speedup on Qwen3-8B (MATH-500).