Qiao Sun
CV

Qiao Sun

Undergraduate at MITStudent Researcher at Google DeepMind

Portrait of Qiao Sun

I am an undergraduate at MIT, studying AI and mathematics. I am currently a Student Researcher on the Foundational AI Research team at Google DeepMind in Cambridge, MA. I work with my host, Deqing Sun, on optimization for recurrent methods and looped models.

Since 2024, I have also been an undergraduate researcher in the He Vision Group at MIT, advised by Kaiming He. There, I work on generative modeling and fast image generation.

I seek to understand how learning and computation give rise to intelligence, and what the next level of intelligence could be. My methods and topics have changed before and will change again, as they should. I hold them loosely, and hold firmly to the curiosity I started with.

01

Research Experience

  1. Google DeepMind

    Jul 2026 – Present

    Ongoing research on optimization for recurrent methods and looped models.

  2. He Vision Group, MIT

    Sep 2024 – Present
    • Research on generative modeling, fast image generation, visual understanding, and AI agents.
    • One of the group’s infrastructure admins, helping coordinate compute resources and access.
02

Selected Papers

ICML 2025

Is Noise Conditioning Necessary for Denoising Generative Models?

Qiao Sun*, Zhicheng Jiang*, Hanhong Zhao*, Kaiming He

Revisits whether diffusion and flow-matching models need noise conditioning, reimplementing eight denoising generative models across several datasets. Proposes uEDM, a noise-unconditional diffusion model with competitive performance, with theory that matches the observed behavior.

CVPR 2026Highlight

Bidirectional Normalizing Flow: From Data to Noise and Back

Yiyang Lu*†, Qiao Sun*†, Xianbang Wang*, Zhicheng Jiang, Hanhong Zhao, Kaiming He

Revisits normalizing flows with a learned reverse map, removing explicit inverse-flow computation and slow autoregressive inference. Hidden-state alignment guides the reverse model, enabling single-evaluation generation with state-of-the-art results among normalizing flows.

ICML 2026

One-step Latent-free Image Generation with Pixel Mean Flows

Yiyang Lu*, Susie Lu*, Qiao Sun*, Hanhong Zhao*, Zhicheng Jiang, Xianbang Wang, Tianhong Li, Zhengyang Geng, Kaiming He

A strong baseline for one-step, latent-free image generation in pixel space, using MeanFlow with x-prediction. Reaches 2.22 FID on ImageNet 256×256 and 2.48 FID on ImageNet 512×512.

* Equal contribution · † Project lead

03

Education

Massachusetts Institute of Technology

Sep 2024 – Present

Tsinghua University

Sep 2023 – Jul 2024
04

Professional Experience

Ubiquant Investment (Jiukun Quant)

Jun – Aug 2025
  • Researched quantitative strategy ideas and backtesting workflows in Python.
  • Evaluated factor robustness, risk and turnover, and strategy diagnostics with statistical tests and visualization.
  • Built reproducible tools for experiment tracking, factor validation, and portfolio-performance analysis.
05

Projects

Fast Humanoid Loco-Manipulation via Flow Matching

2025

Reimplemented a BeyondMimic-style humanoid loco-manipulation pipeline with simulated data preparation, diffusion training, and post-hoc control guidance. Replacing DDPM sampling with flow matching gave lower-latency control with 5 sampling steps.

06

Honors & Awards

  • Top17

    Putnam Mathematical Competition

    2025

  • 2nd

    Putnam Mathematical Competition

    2024

  • 11th

    International Mathematical Olympiad

    Gold Medal · 2023

  • 1st

    Chinese Mathematical Olympiad

    Gold Medal, perfect score · 2022

  • Top70

    Alibaba Global Mathematics Competition

    Excellent Award, among 50,000+ participants · 2022–2024