Evaluating large language models (LLMs) is a complex task that requires a combination of metrics to ensure reliability, accuracy, and fairness. To maintain model performance after deployment, continuous monitoring through platforms like Galileo ensures that models remain accurate and relevant even as input data changes post-deployment. This holistic approach involves using advanced tools like our GenAI Studio, which streamlines the evaluation process, allowing for more efficient model development and optimization. By incorporating comprehensive evaluation strategies and real-time monitoring, engineers can fine-tune their LLMs to deliver accurate, reliable, and efficient results in real-world applications.