Hugging Face Daily Papers · · 3 min read

Enoki: Efficient Multi-Level Hallucination Detection

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Excited to share Enoki — a framework for efficient, fine-grained hallucination detection.</p>\n<p>The key idea is simple: use text-anchored relational facts as a shared representation for both claim-level verification and span-level localization. This avoids costly claim-to-span alignment while staying competitive at claim level and improving fine-grained localization.</p>\n<p>We’re also releasing EnokiQA, our dual-granularity dataset. 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Papers
arxiv:2609.00581

Enoki: Efficient Multi-Level Hallucination Detection

Published on Sep 1
· Submitted by
Julia Belikova
on Sep 7

Abstract

Enoki is an open information extraction framework that unifies claim-level verification and span-level hallucination localization through shared relational facts, reducing resource use while improving detection accuracy.

Ensuring factuality remains a critical challenge for deploying LLMs in high-stakes settings. Existing hallucination detectors usually operate at a single level: claim-level methods provide interpretable factual units, while span-level methods localize unsupported text. Bridging these views is costly, as LLM-heavy pipelines require multiple decomposition and verification calls, and modular systems need additional claim-to-span alignment. We propose Enoki, an Open Information Extraction framework for multi-level hallucination detection. Enoki extracts text-anchored relational facts, verifies them against evidence, and projects unsupported facts back to hallucinated spans. This shared representation enables claim-level verification and span-level localization without requiring separate alignment. Enoki supports LLM-based, encoder-based, and rule-based extraction regimes, balancing accuracy and inference cost through a common interface. Experiments show that Enoki remains competitive with strong claim-level systems while using fewer resources and achieves superior performance on fine-grained span- and entity-level localization. We also release EnokiQA, a dual-granularity dataset with aligned claim-level verification and span-level localization annotations.

Community

Excited to share Enoki — a framework for efficient, fine-grained hallucination detection.

The key idea is simple: use text-anchored relational facts as a shared representation for both claim-level verification and span-level localization. This avoids costly claim-to-span alignment while staying competitive at claim level and improving fine-grained localization.

We’re also releasing EnokiQA, our dual-granularity dataset. Feedback and discussions are very welcome!

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