Fanqi Wan

Researcher, Stepfun

Joined

June 2023

Names

Fanqi Wan (Preferred)

Emails

****@mail2.sysu.edu.cn (Confirmed)

Personal Links

Career & Education History

Researcher

Stepfun (stepfun.com)

2025 – Present

MS student

SUN YAT-SEN UNIVERSITY (sysu.edu.cn)

2022 – 2025

Undergrad student

Xi'an Jiaotong University (xjtu.edu.cn)

2018 – 2022

Advisors, Relations & Conflicts

No relations added

Expertise

Large Language Model

2023 – Present

Instruction-Tuning

2023 – Present

Model Fusion

2023 – Present

Task-Oriented Dialogue

2022 – Present

Publications

Self-Evolution Fine-Tuning for Policy Optimization
Ruijun Chen, Jiehao Liang, Shiping Gao, Fanqi Wan, Xiaojun Quan
- EMNLP2024 Findings
- Readers: Everyone
SoLoPO: Unlocking Long-Context Capabilities in LLMs via Short-to-Long Preference Optimization
Huashan Sun, Shengyi Liao, Yansen Han, Yu Bai, Yang Gao, Cheng Fu, Weizhou Shen, Fanqi Wan, Ming Yan, Ji Zhang, Fei Huang
- ICLR 2026 Poster
- Readers: Everyone
SPELL: Self-Play Reinforcement Learning for Evolving Long-Context Language Models
Ziyi Yang, Weizhou Shen, Chenliang Li, Ruijun Chen, Fanqi Wan, Ming Yan, Xiaojun Quan, Fei Huang
- ICLR 2026 Poster
- Readers: Everyone
FuseRL: Dense Preference Optimization for Heterogeneous Model Fusion
Longguang Zhong, Fanqi Wan, Ziyi Yang, Guosheng Liang, Tianyuan Shi, Xiaojun Quan
- ICLR 2026 Conference Withdrawn Submission
- Readers: Everyone
Advantage-Guided Distillation for Preference Alignment in Small Language Models
Shiping Gao, Fanqi Wan, Jiajian Guo, Xiaojun Quan, Qifan Wang
- ICLR 2025 Spotlight
- Readers: Everyone
Let Large Language Models Find the Data to Train Themselves
Fanqi Wan, Deng Cai, Shijue Huang, Xiaojun Quan, Mingxuan Wang
- ICLR 2025 Conference Withdrawn Submission
- Readers: Everyone
FuseChat: Knowledge Fusion of Chat Models
Fanqi Wan, Longguang Zhong, Ziyi Yang, Ruijun Chen, Xiaojun Quan
- ICLR 2025 Conference Withdrawn Submission
- Readers: Everyone
Weighted-Reward Preference Optimization for Implicit Model Fusion
Ziyi Yang, Fanqi Wan, Longguang Zhong, Tianyuan Shi, Xiaojun Quan
- ICLR 2025 Poster
- Readers: Everyone
Knowledge Fusion of Large Language Models
Fanqi Wan, Xinting Huang, Deng Cai, Xiaojun Quan, Wei Bi, Shuming Shi
- ICLR 2024 poster
- Readers: Everyone
Retrieval-Generation Alignment for End-to-End Task-Oriented Dialogue System
Weizhou Shen, Yingqi Gao, Canbin Huang, Fanqi Wan, Xiaojun Quan, Wei Bi
- EMNLP 2023 Main
- Readers: Everyone

View all 14 publications

Co-Authors

View all 35 co-authors