# Making LLMs Say What They Think: Measuring and Improving CoT-Interpretability Alignment > Source: > Published: 2026-10-07 02:30:46+00:00 Chain-of-thought (CoT) traces often serve as a proxy for how Large Language Models (LLMs) arrive at their answers. However, growing evidence shows that models' CoT often fails to reflect their internal computations and can be changed without affecting their final answers. In this work, we measure an