This podcast episode discusses the evolving landscape of evaluating LLM applications versus LLMs themselves, emphasizing the necessity for application-centric evaluation tools that cater to builders who may not possess deep machine learning expertise. Shahul explores the distinctions between traditional software testing and LLM evaluation, advocating for a nuanced understanding of output variability and the integration of metrics-driven development to assess performance. Furthermore, the episode highlights the significance of tailored metrics, the use of synthetic data for testing, and the future of LLM applications, culminating in the belief that a strong focus on data quality and evaluation practices is essential for the responsible advancement of LLM technology.