Tencent Advertising Technology

Sep 4, 2026 · Artificial Intelligence

Scaling Model Width Alone Hurts AUC: Two Seniors' 1000-Experiment TAAC 2026 Breakthrough

Two senior undergraduates won the Scaling Law Original Breakthrough Award and 10th place in the academic track at the 2026 Tencent Advertising Algorithm Competition by running nearly 1000 experiments, discovering that increasing model width alone reduces AUC unless accompanied by new informative tokens, leading to their CoSFormer architecture that scales capacity and information jointly.