Hulk's approach differs from traditional task-specific models in several key ways. Firstly, Hulk adopts a unified framework that can handle multiple human-centric tasks without the need for task-specific fine-tuning. This contrasts with traditional models that are designed and optimized for specific tasks, requiring significant effort to adapt them to new tasks. Additionally, Hulk condenses diverse inputs and outputs into four modalities, simplifying the model architecture and enhancing flexibility across different tasks. In contrast, traditional models often have specialized designs tailored to individual tasks, leading to less versatility and scalability.