Why Models Know But Don’t Say: Chain-of-Thought Faithfulness Divergence Between Thinking Tokens and Answers in Open-Weight Reasoning Models
arXiv:2603.26410v1 Announce Type: new
Abstract: Extended-thinking models expose a second text-generation channel (“thinking tokens”) alongside the user-visible answer. This study examines 12 open-weight reasoning models on MMLU and GPQA questions pair…