LLM Lens is an observability platform designed specifically for large language model (LLM) applications. It helps developers and MLOps teams monitor, debug, and optimize their LLM-powered features by providing real-time insights into prompt and response flows, token usage, latency, and model accuracy. The platform integrates seamlessly with existing development environments, offering tools to identify performance bottlenecks, track regressions, and ensure the reliability of AI deployments. It leverages standards like OpenTelemetry for data collection and encourages best practices like robust type hinting in Python for better code quality and easier debugging within LLM pipelines.