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Evidence for Limited Metacognition in LLMs

arxiv.org/abs/2509.21545

quality89

Updated 4 h ago · first seen 11 Sept 2026

paper_01M294FRTTGQVAC9JGX15H8MW8

Published
11 Sept 2026
T1 · 4 h ago
arXiv
2509.21545
T1 · 4 h ago
Category
cs.LG
T1 · 4 h ago

Abstract

The possibility of LLM self-awareness and even sentience is gaining increasing public attention and has major safety and policy implications, but the science of measuring them is still in a nascent state. Here we introduce a novel methodology for quantitatively evaluating metacognitive abilities in LLMs. Taking inspiration from research on metacognition in nonhuman animals, our approach eschews model self-reports and instead tests to what degree models can strategically deploy knowledge of internal states. Using two experimental paradigms, we demonstrate that frontier LLMs introduced since early 2024 show increasingly strong evidence of certain metacognitive abilities, specifically the ability to assess and utilize their own confidence in their ability to answer factual and reasoning questions correctly and the ability to anticipate what answers they would give and utilize that information appropriately. We buttress these behavioral findings with an analysis of the token probabilities returned by the models, which suggests the presence of an upstream internal signal that could provide the basis for metacognition. We further find that these abilities 1) are limited in resolution, 2) emerge in context-dependent manners, and 3) seem to be qualitatively different from those of humans. We also report intriguing differences across models of similar capabilities, suggesting that LLM post-training may have a role in developing metacognitive abilities.

Authors 1

Christopher Ackerman

Specification

Official page

Source:arXiv (Atom API + RSS)T1observed 4 h agohigh

Arxiv announce type
replace

Source:arXiv (Atom API + RSS)T1observed 4 h agohigh

arXiv id
2509.21545

Source:arXiv (Atom API + RSS)T1observed 4 h agohigh

Categories
cs.LG, cs.AI

Source:arXiv (Atom API + RSS)T1observed 4 h agohigh

PDF

Source:arXiv (Atom API + RSS)T1observed 4 h agohigh

Primary category
cs.LG

Source:arXiv (Atom API + RSS)T1observed 4 h agohigh

Published
11 Sept 2026

Source:arXiv (Atom API + RSS)T1observed 4 h agohigh

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Provenance

Attributed facts

9

Source tiers

T19

Freshest observation

4 h ago

Conflicts

None