Propose an approach for designing the architecture of your multimodal AI system. Explain how you would handle the unique characteristics of each input modality and address the challenges of integrating their representations.

Design a modular architecture with separate modules for processing each input modality (e.g., convolutional neural networks for images, recurrent neural networks for text). Use attention mechanisms or feature fusion techniques to integrate the representations from different modalities. This allows the system to leverage the strengths of each modality and address the challenges of multimodal data.