Jingsong Sun

Experience

Research Intern, RL Team — Kimi (Moonshot AI)
May 2026 – Present
Kimi K3 and post-training for LLM agents; Agents Last Exam; continual learning.
Visiting Student — UC Berkeley
Fall 2025
Tool-use agents and audio-agent evaluation, with Prof. Joseph Gonzalez.
Research Intern — Tsinghua University
Apr. 2025 – Feb. 2026
Training dynamics of loop Transformers on graph connectivity tasks, with Prof. Kaifeng Lyu.

Selected Work

Kimi K3: Open Frontier Intelligence
Kimi Team (including Jingsong Sun)
Technical Report 2026
Real-Time Audio Tool Bench: Evaluating Tool Use in Multi-Turn Voice Interaction
Jingsong Sun, et al.
Under review at ICLR 2027
Exploring the Robustness of In-Context Learning with Noisy Labels
Chen Cheng, Xinzhi Yu, Haodong Wen, Jingsong Sun, Guanzhang Yue, Yihao Zhang, Zeming Wei
ICASSP 2025