GenAI has real-world applications and generates revenue for companies, leading to heavy investments in research.Before powering an application with Large Language Models (LLMs), define the use case clearly and assess resource availability.Choose between training a model from scratch or using pre-trained models like 1B, 10B, or 100B+ parameter models based on specific use cases.Enhance the model by providing additional context using methods like prompt engineering or reinforced learning with human feedback.Evaluate the model manually or using metrics like ROUGE scores to ensure proper functioning and extract performance insights.Optimize the model by quantizing weights and pruning to reduce memory requirements, computing costs, and improve performance.Pre-trained models like ChatGPT and FLAN-T5 can be utilized and fine-tuned, followed by deployment for application use cases.Powering applications with LLMs involves a step-by-step process from defining use cases to optimizing and deploying models.The process includes choosing the right model, enhancing it with additional data, evaluating performance, and fine-tuning for efficient deployment.Utilizing techniques like RAG and metrics like ROUGE scores can ensure model effectiveness and alignment with application requirements.Overall, leveraging LLMs for applications requires strategic planning, evaluation, optimization, and deployment to maximize performance.