Haoxiang Sun
Hi there 👋, I’m Haoxiang Sun (噿µ©ç¿”), a 4th-year undergrad at Renmin University of China, pursuing a dual degree in CS and Finance. My research focuses on Language Models. I am currently visiting UC Berkeley, fortunate to work with Sewon Min. Previously, I had a great time working with Manling Li and Zihan Wang at Northwestern, and with Xin Zhao at Renmin.
During my visit, I took CS 288: Advanced NLP (A+, highest score among ~150 students, taught by Sewon Min and Alane Suhr) and CS 294-258: Computational Models of Language Use (A+, top 4 out of ~25 students, taught by Alane Suhr).
Note: My UC Berkeley email hxiang.sun@berkeley.edu will soon be deactivated. Please reach me at hxiang.sun@gmail.com.
One of my favorite things about living in the Bay Area is exploring on foot and by public transit (BART, Caltrain, Muni, and more). A go-to adventure of mine is taking BART to Powell Street Station, walking through Chinatown up to Fisherman’s Wharf, and then strolling along the waterfront all the way back to Embarcadero Station. I also love riding buses across the Richmond-San Rafael Bridge, the Golden Gate Bridge, and the Bay Bridge. Another frequent trip of mine is taking Caltrain from San Francisco all the way down to San Jose, grabbing a seat on the upper deck and enjoying the scenery along the way. I’m also a big fan of the vibe around Ocean Beach in San Francisco. When I’m not out exploring the Bay Area, I also enjoy playing Minecraft, especially on the Hypixel server, where my favorite game modes are Capture the Wool and Bed Wars (particularly Rush and Castle 40v40).
Publications & Preprints
Challenging the Boundaries of Reasoning: An Olympiad-Level Math Benchmark for Large Language Models
Auriga: Harness-Governed LLM Agents for Effective Throughput Optimization in EOV Permissioned Blockchains
Enhancing LLM Reasoning with Reward-guided Tree Search
LLMBox: A Comprehensive Library for Large Language Models
Selected Awards
- 2026 CCF Elite Collegiate Award 103 awardees nationwide
- 2026 SenseTime Scholarship 30 awardees nationwide
- 2024, 2025 National Scholarship (×2) Ministry of Education, top 0.4% nationwide
- 2024 Asia Team Champion Asia Terminal, hosted by Citadel | Citadel Securities
- 2022 Silver Medal, China Mathematical Olympiad (CMO) 2nd in the Anhui team at the final
- 2021, 2022 First Prize (×2), Chinese High School Mathematics League Anhui Province
- 2021 Gold Medal, China Southeast Mathematical Olympiad
Teaching & Services
- 2026 Teaching Assistant, BAIR-NCKU Summer Program RAG course taught by Sewon Min
Invited Talks
- Sep 4, 2026 Models All the Way Down: Auditing the Invisible Dependencies of Modern LLMs Slides Open Ecosystem Team, Allen Institute for AI (w/ Sanjay Adhikesaven, P1-41)
- Jul 7, 2026 OlymMATH: An Olympiad-Level Math Benchmark for LLMs Slides The 64th Annual Meeting of the Association for Computational Linguistics
- Jun 8, 2026 ModSleuth Demonstration Slides Open Ecosystem Demo Day, Allen Institute for AI
Blog Posts
Friend Links
It seems to be a tradition to keep some links here, and I am happy to carry it on. Many of the people here are researchers I deeply admire, and I have been lucky to learn from them as collaborators, mentors, and friends. The order shuffles on every refresh, and the list is always open. Just let me know if you’d like to be here too.




