Are VLMs Seeing or Just Saying? Uncovering the Illusion of Visual Re-examination
On the map: Multimodal LLMs / vision-language models → VLM benchmarks and visual reasoning
Abstract (arXiv)
Vision-Language Models (VLMs) often produce self-reflective statements like "let me check the figure again" during reasoning. Do such statements trigger genuine visual re-examination, or are they merely learned textual patterns? We investigate this via VisualSwap, an image-swap probing framework: after a model reasons over an image, we replace it with a visually similar but semantically different one and test whether the model notices. We introduce VS-Bench, 800 image pairs curated from MathVista, MathVerse, MathVision, and MMMU-Pro. Experiments on Qwen3-VL, Kimi-VL, and ERNIE-VL reveal a striking failure: models overwhelmingly miss the swap, with accuracy dropping by up to 60%. Counterintuitively, thinking models are nearly 3x more vulnerable than their instructed counterparts, and scaling offers no mitigation. Multi-turn user instructions restore visual grounding, but self-generated reflective statements during continuous generation do not. Attention analysis explains why: user instructions substantially elevate attention to visual tokens, whereas self-reflection does not. Current VLMs tend to say rather than actually see when claiming to perform visual re-examination. Our code and dataset are available at the project page: https://visualswap.github.io
Key facts. Cited by 12 papers 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 39 of its 45 references that are in the map. First posted on arXiv 15 May 2026.
Builds on
39 of 45 references.
Closest ancestors · 5
Same direction, newest first
- 2025Kimi-VL Technical Report10 Apr
- 2024MathVerse: Does Your Multi-modal LLM Truly See the Diagrams in Visual Math Problems?21 Mar
- 2024Measuring Multimodal Mathematical Reasoning with MATH-Vision Dataset22 Feb
- 2023MathVista: Evaluating Mathematical Reasoning of Foundation Models in Visual Contexts3 Oct
- 2022Flamingo: a Visual Language Model for Few-Shot Learning29 Apr
Other references · 34
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- 2025Qwen2.5-VL Technical Reportcited by 5,418
- 2023Improved Baselines with Visual Instruction Tuningcited by 4,362
- 2024Qwen2-VL: Enhancing Vision-Language Model's Perception of the World at Any Resolutioncited by 4,151
- 2023Reflexion: Language Agents with Verbal Reinforcement Learningcited by 4,064
22 more
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Built on by
Citing papers per year: 2026: 12.
12 papers.
- 2026Visual Access Boundaries in Vision-Language Model Reasoningcited by 2
- 2026Veritas++: Value-aware On-Policy Distillation for Perception-Enhanced AIGI Detectioncited by 2
- 2026Do Text Edits Generalize to Visual Generation? Benchmarking Cross-Modal Knowledge Editing in UMMscited by 1
- 2026VisualFLIP: Do Predictions Depend on Task-Critical Visual Evidence in Multimodal Reasoning?cited by 1
- 2026Recompute or Reuse? Diagnosing and Mitigating Textual Shortcuts in VLM Self-Reflectioncited by 0
- 2026EDCT-Bench: Uncovering Faithfulness Gaps in VLMs via Explanation-Driven Counterfactual Testingcited by 0
- 2026Retrieved but Not Delivered: Multimodal Memory Delivery for Long-Term Agentscited by 0
- 2026Certified Interface Aliases: Exact Collisions in Vision-Language Preprocessing, and When They Existcited by 0
- 2026InfoEdit: Probing Global Layout Reasoning in Infographic Editingcited by 0
- 2026AnswerMap: Faithful Spatial Interpretability of VLMs from Answer Posteriorscited by 0
- 2026A Low Grounding Score Is Not an Ungrounded Judge: Identifying the Perceptibility Confound in Multimodal Oversightcited by 0
- 2026Pay for the Fault, Not the Flow: Label-Free In-Flow Multi-Agent Workflow Optimizationcited by 0
- 2026Pay for the Fault, Not the Flow: Label-Free In-Flow Multi-Agent Workflow Optimization1 Oct 2026
- 2026AnswerMap: Faithful Spatial Interpretability of VLMs from Answer Posteriors28 Sep 2026
- 2026InfoEdit: Probing Global Layout Reasoning in Infographic Editing27 Sep 2026
- 2026Certified Interface Aliases: Exact Collisions in Vision-Language Preprocessing, and When They Exist26 Sep 2026
- 2026Retrieved but Not Delivered: Multimodal Memory Delivery for Long-Term Agents26 Sep 2026
- 2026EDCT-Bench: Uncovering Faithfulness Gaps in VLMs via Explanation-Driven Counterfactual Testing16 Sep 2026
- 2026A Low Grounding Score Is Not an Ungrounded Judge: Identifying the Perceptibility Confound in Multimodal Oversight9 Sep 2026
- 2026Recompute or Reuse? Diagnosing and Mitigating Textual Shortcuts in VLM Self-Reflection3 Aug 2026
- 2026Veritas++: Value-aware On-Policy Distillation for Perception-Enhanced AIGI Detection29 Jul 2026
- 2026Visual Access Boundaries in Vision-Language Model Reasoning14 Jul 2026
- 2026VisualFLIP: Do Predictions Depend on Task-Critical Visual Evidence in Multimodal Reasoning?5 Jun 2026
- 2026Do Text Edits Generalize to Visual Generation? Benchmarking Cross-Modal Knowledge Editing in UMMs30 May 2026
Similar, not cited
Close in wording, no citation either way
- 2026ReGround: Restoring Visual Grounding in Multi-Step Reasoning through Self-Diagnosis and Visual Re-Examination
- 2026Investigating Relational Reasoning in VLMs
- 2026Seeing without Looking: Do Vision-Language Benchmarks Really Test Vision?
- 2025Mixed Signals: Decoding VLMs' Reasoning and Underlying Bias in Vision-Language Conflict
- 2026Improving Visual Reasoning with Iterative Evidence Refinement
- 2025Look-Back: Implicit Visual Re-focusing in MLLM Reasoning
- 2026Do VLMs Perceive or Recall? Probing Visual Perception vs. Memory with Classic Visual Illusions
- 2026Reasoning Dynamics and the Limits of Monitoring Modality Reliance in Vision-Language Models