Jiacheng Chen

Papers on Lattice

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Research focus

Tool Use & Agents (2)Eval Frameworks & Benchmarks (1)Recommendation & Information Retrieval (1)Reasoning & Chain-of-Thought (1)Scaling Laws & Emergent Abilities (1)

Frequent co-authors

Yu Cheng (2)Zhilin Wang (1)Han Song (1)Hanxiao Song (1)

Papers (3)

Jul 2, 2026

Tsinghua AIJul 2, 2026·also UMacau, UT Austin

EvoPolicyGym: Evaluating Autonomous Policy Evolution in Interactive Environments

GPT-5.5 not only tops the leaderboard in policy evolution but also reveals critical insights into how agents can optimize performance through strategic feedback utilization.

Zhilin Wang, Han Song, Hanxiao Song +15

Eval Frameworks & Benchmarks Tool Use & Agents

Jun 30, 2026

Jiacheng Chen +20Jun 30, 2026·also UQ

ShopX: A Foundation Model for Intent-to-Item Fulfillment in Agentic Shopping

ShopX transforms agentic shopping by seamlessly translating complex intents into item-space actions, outperforming traditional retrieval-based systems.

Jiacheng Chen, Manxi Lin, Dunxian Huang +18

Recommendation & Information Retrieval Tool Use & Agents

Jun 11, 2026

Tsinghua AIJun 11, 2026·also Birmingham, CUHK, Fudan, MiniMax +1

MaxProof: Scaling Mathematical Proof with Generative-Verifier RL and Population-Level Test-Time Scaling

MaxProof's innovative test-time scaling enables an AI to outperform human champions in mathematical proof competitions.

Jiacheng Chen, Xinyu Zhang, Shunkai Zhang +23

Reasoning & Chain-of-Thought Scaling Laws & Emergent Abilities

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Jiacheng Chen

Research focus

Frequent co-authors

Papers (3)