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Tianhao Cheng

4 accepted papers

2026

Blending Supervised and Reinforcement Fine-Tuning with Prefix Sampling

ICML 2026poster

Existing LLMs-post-training techniques are broadly categorized into supervised fine-tuning (SFT) and reinforcement fine-tuning (RFT). Each paradigm presents a distinct trade-off: (1) SFT excels at mimicking demonstration data, but can lead to problematic generalization as a form of behaviour cloning…

Cited by 0SourceScholar
2026

Synthesizing Multimodal Verifiable Game Data to Boost VLMs' General Reasoning

ICLR 2026poster

Vision-language reinforcement learning (RL) has primarily focused on narrow domains (e.g. geometry or chart reasoning). This leaves broader training scenarios and resources underexplored, limiting the exploration and learning of Vision Language Models (VLMs) through RL. We find video games inherentl…

Cited by 0SourcecodeScholar
2025

OpenCoder: The Open Cookbook for Top-Tier Code Large Language Models

ACL 2025long

Code LLMs have been widely used in various domains, including code generation, logical reasoning, and agent systems. However, open-access code LLMs mostly only release weights, lacking key features such as reproducible data pipelines and transparent training protocols, which are crucial for advancin…

2025

SuperGPQA: Scaling LLM Evaluation across 285 Graduate Disciplines

NeurIPS 2025poster

Large language models (LLMs) have demonstrated remarkable proficiency in mainstream academic disciplines such as mathematics, physics, and computer science. However, human knowledge encompasses over 200 specialized disciplines, far exceeding the scope of existing benchmarks. The capabilities of LLMs…

Cited by 215SourceScholar