Model size defines a core trade-off: too-large SLMs answer without the cognitive structure while too-small SLMs break instruction-following coherence¶
Claim · All claims
Evidence · 1 study · designr2·q1
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person · recheck by 2029: tool and model accuracy changes quickly
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q1 i? The authors report that if the model is too large, the SLM answers correctly on its own without needing the proposed cognitive structure, while if too small, its coherence in following rigid instructions breaks down, defining the core trade-off between explicit control and scalable coverage. → Hyeongdon Moon 2026
Evidence¶
Hyeongdon Moon 2026¶
Hyeongdon Moon, Carolyn Rosé, and John Stamper. (2026). Cognitive Agent Compilation for Explicit Problem Solver Modeling. https://arxiv.org/abs/2605.07040 doi:10.48550/arxiv.2605.07040
q1 · i? · design · r2
Authors' challenge analysis from the proof of concept (Section 6.1), describing the 'curse of prior knowledge'. They state this "defines the core trade-off in CAC between explicit control and scalable coverage". No effect sizes are printed.
"If the model is too large, the SLM answers correctly on its own without needing the proposed cognitive structure; conversely, if the model is too small, its coherence in following rigid instructions breaks down."
Discussion¶
Related Claims¶
- An SLM executor under tight constraints can drive a Cognitive Agent through formatted outputs and logit-based action selection, yielding partial rather than full explainability — related
- A 4-bit quantized 27B local Teacher LLM generated knowledge in the required format, suggesting accessible-resource implementations may be feasible
- MCQs generated by the generate-then-validate SLM pipeline are generally answerable and unambiguous, as judged by seven human experts
- At the implementation checkpoint, several groups added an explicit human-approval step after encountering local-LLM structured-output reliability limitations — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
curse-of-prior-knowledge-size-tradeoff |
title |
Model size defines a core trade-off: too-large SLMs answer without the cognitive structure while too-small SLMs break instruction-following coherence |
description |
Model size defines a core trade-off: too-large SLMs answer without the cognitive structure while too-small SLMs break instruction-following coherence |
status |
review |
evidence_strength |
weak |
newest_evidence |
2026 |
recheck_by |
2029 |
generated |
by process:wiki-ingest on 2026-10-11 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — hyeongdon-moon-2026 |
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