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AgentFoX: LLM Agent-Guided Fusion with eXplainability for AI-Generated Image Detection

About

The realism of AI-generated images (AIGI) poses increasing challenges for reliable forensic detection, where heterogeneous expert detectors may produce conflicting predictions across diverse generative sources and post-processing conditions. Existing multi-expert fusion methods rely on fixed rules or learned fusion strategies, offering limited ability to assess sample-specific reliability, execute rigorous adjudication of conflicts, and provide evidence-grounded explanations. We propose AgentFoX, an LLM-driven agentic multi-expert framework for AIGI detection that employs a command-and-reasoning core to perform evidence fusion. Following predefined guidelines, the core coordinates designated subtasks to collect semantic and signal-level evidence, reason over structured contexts to determine authenticity, and generate an auditable report for explainability. During this process, Expert Profiles are constructed for model-centric reliability assessment, while Clustering Profiles are built for data-centric contextual analysis, jointly establishing evidence contexts for conflict resolution. Extensive evaluations across diverse benchmarks demonstrate the robustness and generalizability of AgentFoX under complex conditions.

Yangxin Yu, Yue Zhou, Bin Li, Kaiqing Lin, Haodong Li, Jiangqun Ni, Bo Cao• 2026

Related benchmarks

TaskDatasetResultRank
AI-generated image detectionWildFake (All)
F1 Score93.26
32
AI-generated image detectionX-Fuse
Overall (F1)80.87
21
AI-generated image detectionWIRA All
F1 Score95.79
17
AI-generated image detectionWIRA and WildFake Overall
F1 Score94.88
17
Cross-domain AI-generated image detectionAIGCDetect
F1 Score75.58
15
Cross-domain AI-generated image detectionAIGIBench
F1 Score89.75
15
Cross-domain AI-generated image detectionChameleon
F1 Score69.14
15
Cross-domain AI-generated image detectionCommunity Forensics
F1 Score91.5
15
Cross-domain AI-generated image detectionWIRA
F1 Score73.23
15
Cross-domain AI-generated image detectionGenImage
F1 Score78.54
15
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