Preprint
Aug 2026
ProbGuard: Calibrated Safety Risk Estimation from LLM Output Distributions
This work proposes the first completely probabilistic architecture-agnostic guardrail to leverage the LLM early output distributional signals for estimating and calibrating the safety probability, thereby enabling early stopping of unsafe ongoing outputs.
Xinzhe Huang, Biwu Yao, Kedong Xiu et al.
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