Xuanchi Ren

I am currently working at a stealth-mode startup. Previously, I was a senior research scientist at the NVIDIA Spatial Intelligence Lab. I received my Ph.D. from the University of Toronto, advised by Prof. Sanja Fidler. During my undergraduate years at HKUST, I was supervised by Prof. Qifeng Chen.

My research interests are in computer vision, particularly world models and generative modeling.

Email  /  CV  /  Google Scholar  /  Github

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News
  • Jun. 2026: We released NVIDIA OmniDreams and Cosmos 3.
  • May 2026: PiD and Gamma-World are out on arXiv.
  • Apr. 2026: Lyra 2.0 (SIGGRAPH Asia 2026) and MoRight (ECCV 2026) are out on arXiv.
  • Jan. 2026: Lyra and ChronoEdit are accepted to ICLR 2026.
  • Aug. 2025: We released ViPE, a video pose engine for 3D geometric perception.
  • Jun. 2025: We released Cosmos-Drive-Dreams. InfiniCube is accepted to ICCV 2025.
  • Mar. 2025: Cosmos-Transfer1 was featured in Jensen Huang's GTC 2025 keynote.
  • Feb. 2025: GEN3C is accepted to CVPR 2025 as a Highlight. Difix3D+ is accepted to CVPR 2025 as an Oral and selected as a Best Paper Award Candidate.
  • Sep. 2024: SCube is accepted to NeurIPS 2024.
  • Feb. 2024: XCube is accepted to CVPR 2024 as a Highlight.
Publications   (show selected / show by date)

* denotes equal contribution, † denotes equal advising.

Employment
Stealth-mode startup Jul. 2026 - Present
Senior Research Scientist at NVIDIA Spatial Intelligence Lab May 2026 - Jul. 2026
Research Scientist at NVIDIA Spatial Intelligence Lab Sep. 2025 - Apr. 2026
Research Intern at NVIDIA Spatial Intelligence Lab Nov. 2022 - Sep. 2025
Research Intern at Microsoft Research Asia Jun. 2020 - Dec. 2021
Education
Ph.D. in Computer Science at University of Toronto Sep. 2022 - Sep. 2026
B.Eng. in Computer Science and B.Sc. in General Mathematics at HKUST Aug. 2017 - Jun. 2022
Exchange student in Computer Science at EPFL Feb. 2020 - Jun. 2020

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