Seeing What Should Be Heard: Diagnosing and Repairing Cross-Modal Shortcuts in Omni-Modal LLMs

arXiv:2609.36798 · cs.CV, cs.CL, cs.LG · Submitted 2026-09-29 · Read on arXiv

cs.CV, cs.CL, cs.LG

Submitted: 2026-09-29

Updated: 2026-09-29

Code: https://github.com/OpenBMB/MiniCPM-o

Terminology

• Accuracy — 37× in this paper · explained in 1 episode
• Hallucination — 21× in this paper · explained in 3 episodes
• GRPO — 15× in this paper · explained in 6 episodes
• Benchmark — 13× in this paper · explained in 2 episodes
• Fine-Tuning — 8× in this paper · explained in 5 episodes
• Generalization — 8× in this paper · explained in 13 episodes
• Reinforcement Learning — 6× in this paper · explained in 4 episodes
• Trace — 4× in this paper · explained in 2 episodes
• Verification — 3× in this paper · explained in 2 episodes
• Zero-Shot Generalization — 3× in this paper · explained in 5 episodes
• Ablation — 2× in this paper · explained in 1 episode
• Adaptation — 2× in this paper · explained in 1 episode
• Generative AI — 2× in this paper · explained in 2 episodes
• LoRA Adapters — 2× in this paper · explained in 3 episodes
• Robustness — 2× in this paper · explained in 5 episodes
• Ablation study — 1× in this paper · explained in 1 episode
• Aggregation — 1× in this paper · explained in 1 episode
• Consistency — 1× in this paper · explained in 3 episodes
• Core — 1× in this paper · explained in 2 episodes
• Decode — 1× in this paper · explained in 2 episodes
• Edge Devices — 1× in this paper · explained in 2 episodes
• Grounding — 1× in this paper · explained in 3 episodes
• Hallucination Mitigation — 1× in this paper · explained in 2 episodes
• Large Language Model (LLM) — 1× in this paper · explained in 3 episodes
• Large Language Models (LLMs) — 1× in this paper · explained in 6 episodes
• Multimodal Integration — 1× in this paper · explained in 2 episodes
• Multimodal Reasoning — 1× in this paper · explained in 5 episodes
• Reasoning Traces — 1× in this paper · explained in 3 episodes
• Supervised Fine-Tuning (SFT) — 1× in this paper · explained in 8 episodes

Sources

• Separate First, Fuse Later: Mitigating Cross-Modal Interference in Audio-Visual LLMs Reasoning with Modality-Specific Chain-of-Thought
• DeepSeekMath: Pushing the Limits of Mathematical Reasoning in Open Language Models
• When Vision Speaks for Sound
• Escape the Language Prior: Mitigating Late-Stage Modality Collapse in Audio Reasoning via Modality-Aware Policy Optimization
• Qwen2.5-Omni Technical Report
• HumanOmniV2: From Understanding to Omni-Modal Reasoning with Context
• R1-Omni: Explainable Omni-Multimodal Emotion Recognition with Reinforcement Learning

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