A McKinsey report estimates generative AI could add $2.6 to $4.4 trillion in value globally, particularly in customer operations, marketing, software engineering, and R&D. Many enterprises are developing generative AI applications on AWS, prompting a need for understanding cost-optimization strategies. The article discusses factors influencing costs in AWS for generative AI, including model selection, data volume, and usage patterns, emphasizing the importance of efficient design for widespread adoption and realization of AI's potential.