New paper: output similarity doesn't imply process similarity in LLMs

ValerioCapraro · x · 2026-10-13

The author argues one of the biggest mistakes in the AI debate is conflating output similarity with process similarity: a machine behaving like us doesn't mean it thinks like us.

A new paper illustrates the point: humans and two LLMs repeatedly chose between standard and slower delivery, and all three responded similarly on the surface. But deeper analysis shows the underlying decision processes differ, demonstrating that similar outputs do not imply similar underlying mechanisms. Paper link included.

Related event: Zhejiang Study: LLMs Decide Like Humans but Adapt Differently(2 posts)→

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