CutPaste&Find: Efficient Multimodal Hallucination Detector with Visual-aid Knowledge Base
On the map: LLM reasoning → Hallucination detection and mitigation
Abstract (arXiv)
Large Vision-Language Models (LVLMs) have demonstrated impressive multimodal reasoning capabilities, but they remain susceptible to hallucination, particularly object hallucination where non-existent objects or incorrect attributes are fabricated in generated descriptions. Existing detection methods achieve strong performance but rely heavily on expensive API calls and iterative LVLM-based validation, making them impractical for large-scale or offline use. To address these limitations, we propose CutPaste&Find, a lightweight and training-free framework for detecting hallucinations in LVLM-generated outputs. Our approach leverages off-the-shelf visual and linguistic modules to perform multi-step verification efficiently without requiring LVLM inference. At the core of our framework is a Visual-aid Knowledge Base that encodes rich entity-attribute relationships and associated image representations. We introduce a scaling factor to refine similarity scores, mitigating the issue of suboptimal alignment values even for ground-truth image-text pairs. Comprehensive evaluations on benchmark datasets, including POPE and R-Bench, demonstrate that CutPaste&Find achieves competitive hallucination detection performance while being significantly more efficient and cost-effective than previous methods.
Key facts. Cited by 4 papers in the map (data through 7 Oct 2026). Placed in Hallucination detection and mitigation, one of 17 directions in LLM reasoning. Builds on 34 of its 44 references that are in the map. First posted on arXiv 18 Feb 2025.
Builds on
34 of 44 references.
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22 more
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Built on by
Citing papers per year: 2025: 3; 2026: 1.
4 papers.
- 2025A Survey of Multimodal Hallucination Evaluation and Detectioncited by 26
- 2025Journey Before Destination: On the importance of Visual Faithfulness in Slow Thinkingcited by 5
- 2025More Bias, Less Bias: BiasPrompting for Enhanced Multiple-Choice Question Answeringcited by 1
- 2026MEVER: Multi-Modal and Explainable Claim Verification with Graph-based Evidence Retrievalcited by 0
- 2026MEVER: Multi-Modal and Explainable Claim Verification with Graph-based Evidence Retrieval10 Feb 2026
- 2025Journey Before Destination: On the importance of Visual Faithfulness in Slow Thinking13 Dec 2025
- 2025More Bias, Less Bias: BiasPrompting for Enhanced Multiple-Choice Question Answering25 Nov 2025
- 2025A Survey of Multimodal Hallucination Evaluation and Detection25 Jul 2025
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- 2026Beyond the Global Scores: Fine-Grained Token Grounding as a Robust Detector of LVLM Hallucinations
- 2025Visual hallucination detection in large vision-language models via evidential conflict
- 2026VisER: Visual Evidence and Reliance for Object Hallucination Detection in LVLMs
- 2026HalluScope: Fine-grained Hallucination Diagnosis for Multimodal Large Language Models
- 2026TruthLens: Object Hallucination Detection via Self-Evaluating Truthfulness Scores in LVLMs
- 2025Seeing is Believing: Rich-Context Hallucination Detection for MLLMs via Backward Visual Grounding
- 2024Beyond Logit Lens: Contextual Embeddings for Robust Hallucination Detection & Grounding in VLMs