Honest Abstention Transfer in Small-Corpus Supervised Fine-Tuning: Measured Refusals and Confabulations in a 4B Estate-Tuned Model

Measures abstention transfer in a production 4B estate-tuned model with an 8-probe held-out suite. Reports verbatim: correct refusals for unmeasured-value probes AND confabulated citations on citation-shaped probes. Defines the eval-driven DPO counterweight protocol built from measured failures.

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-11-06
DOI
https://doi.org/10.5281/zenodo.24005478
Primary Topic
Topic Modeling
Type
preprint
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preprint

Honest Abstention Transfer in Small-Corpus Supervised Fine-Tuning: Measured Refusals and Confabulations in a 4B Estate-Tuned Model

Stephen P. Lutar
2 links
Zenodo (CERN European Organization for Nuclear Research)
Topic Modeling
preprint

Honest Abstention Transfer in Small-Corpus Supervised Fine-Tuning: Measured Refusals and Confabulations in a 4B Estate-Tuned Model

Stephen P. Lutar
preprint en

Abstract

Measures abstention transfer in a production 4B estate-tuned model with an 8-probe held-out suite. Reports verbatim: correct refusals for unmeasured-value probes AND confabulated citations on citation-shaped probes. Defines the eval-driven DPO counterweight protocol built from measured failures.

Zenodo (CERN European Organization for Nuclear Research)
Topic Modeling
DOIOpen Access PDFOpenAlex
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Honest Abstention Transfer in Small-Corpus Supervised Fine-Tuning: Measured Refusals and Confabulations in a 4B Estate-Tuned Model — Stephen P. Lutar · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS