Failing to See or Failing to Know? Attributing Errors in Vision-Language Models
On the map: Multimodal LLMs / vision-language models → VLM benchmarks and visual reasoning
Abstract (arXiv)
Vision-language models (VLMs) can recognize entities in clear images yet still fail when answering questions that require factual knowledge beyond what is directly observable. Prior work has either examined individual failure modes in isolation or treated incorrect answers as monolithic, binary failures. We propose a tree-structured framework that organizes failures in knowledge-intensive visual question answering into model-specific operational outcomes. Across two datasets and four VLMs, we observe consistent distributions of operational outcomes: some failures occur before entity recognition, while others persist after the relevant entity is recognized. Visual token representations are most informative for recognition-related decisions. Prompt hidden states predict answer success more effectively, although factual-access attribution remains difficult and exhibits only a weak signal. These pre-generation signals support attribution-guided routing to targeted interventions, including image repair, entity support, question rewriting, and factual evidence.
Key facts. Cited by 1 paper in the map (data through 7 Oct 2026). Placed in VLM benchmarks and visual reasoning, one of 16 directions in Multimodal LLMs / vision-language models. Builds on 27 of its 47 references that are in the map. First posted on arXiv 6 Jul 2026.
Builds on
27 of 47 references.
Closest ancestors · 4
Same direction, newest first
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- 2024CVQA: Culturally-diverse Multilingual Visual Question Answering Benchmark10 Jun
Other references · 23
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- 2023Can Pre-trained Vision and Language Models Answer Visual Information-Seeking Questions?cited by 203
- 2024Lookback Lens: Detecting and Mitigating Contextual Hallucinations in Large Language Models Using Only Attention Mapscited by 140
- 2023Encyclopedic VQA: Visual questions about detailed properties of fine-grained categoriescited by 105
11 more
- 2022Retrieval Augmented Visual Question Answering with Outside Knowledgecited by 93
- 2023FaithScore: Fine-grained Evaluations of Hallucinations in Large Vision-Language Modelscited by 44
- 2025Uncertainty Quantification for LLMs through Minimum Bayes Risk: Bridging Confidence and Consistencycited by 30
- 2025A Head to Predict and a Head to Question: Pre-trained Uncertainty Quantification Heads for Hallucination Detection in LLM Outputscited by 20
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- 2026HALP: Detecting Hallucinations in Vision-Language Models without Generating a Single Tokencited by 13
- 2024Unconditional Truthfulness: Learning Unconditional Uncertainty of Large Language Modelscited by 9
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- 2025Losing the Plot: How VLM responses degrade on imperfect chartscited by 5
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Citing papers per year: 2026: 1.
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