Global companies are rapidly posting job openings for GPT-4 positions, indicating a surge in demand in the field of large language models. Prominent firms such as Microsoft, Citigroup, and Merck are actively recruiting professionals skilled in GPT-4, driving the application of AI technology in customer service and operational efficiency. The job roles span across various domains, including AI integration engineers at Skype, AI full-stack engineering leaders at Citigroup, and AI/ML engineers at Merck, showcasing the wide-ranging applications of GPT-4 across different industries. The emergence of GPT-4 offers abundant opportunities for professionals in deep learning, machine learning, and natural language processing.