TY - GEN T1 - Can Confidence Estimates Decide When Chain-of-Thought Is Necessary for LLMs? T2 - arXiv PY - 2026/01/08 AU - Lewis-Lim S AU - Tan X AU - Zhao Z AU - Aletras N ED - DO - DOI: 10.48550/arxiv.2510.21007 Y2 - 2026/01/29 ER -