{"slug": "improved-confidence-estimates-for-black-box-large-language-models", "title": "Improved Confidence Estimates for Black-Box Large Language Models", "summary": "Researchers at arXiv (paper 2608.19323v1) introduced a method that improves uncertainty quantification for black-box large language models by training simple classifiers on existing scores and correctness of similar queries, consistently outperforming zero-shot scores with minimal computational overhead.", "body_md": "arXiv:2608.19323v1 Announce Type: new\nAbstract: Uncertainty quantification (UQ) is essential for the safe deployment of large language models (LLMs). Existing methods, from verbalized confidence to ones requiring multiple generations, are often zero-shot and produce scores quantifying uncertainty without the need for labelled data. Nonetheless, in practice one must always evaluate their performance on a dataset of interest before deployment. In this work we show that, by leveraging this dataset, we consistently outperform these existing scores. Specifically, we build simple classifiers that predict LLM response correctness by using these scores and the correctness of similar queries as features. Our method produces minimal computational overhead, making it a cheap and straightforward enhancement for UQ in LLMs for real-world applications.", "url": "https://wpnews.pro/news/improved-confidence-estimates-for-black-box-large-language-models", "canonical_source": "https://arxiv.org/abs/2608.19323", "published_at": "2026-08-21 04:00:00+00:00", "updated_at": "2026-08-21 04:16:08.708209+00:00", "lang": "en", "topics": ["large-language-models", "machine-learning", "ai-research"], "entities": ["arXiv"], "alternates": {"html": "https://wpnews.pro/news/improved-confidence-estimates-for-black-box-large-language-models", "markdown": "https://wpnews.pro/news/improved-confidence-estimates-for-black-box-large-language-models.md", "text": "https://wpnews.pro/news/improved-confidence-estimates-for-black-box-large-language-models.txt", "jsonld": "https://wpnews.pro/news/improved-confidence-estimates-for-black-box-large-language-models.jsonld"}}