The PyTorch Lightning open source framework has been adopted across thousands of organizations to build, train, fine-tune, and deploy AI models at scale. In the last two years, PyTorch Lightning has powered the generative AI revolution. Many of the leading generative AI models, such as Stable Diffusion and SDXL, as well as new architectures like Hyena and RWKV, have been trained with PyTorch Lightning. Lightning AI enables organizations to implement their AI strategy faster and cheaper through the PyTorch Lightning ecosystem. In this interactive lightning talk, see how to use the cloud for the whole generative AI lifecycle, from data preparation to the deployment of AI-based products.