You have probably heard of OpenTelemetry in the context of traces. But did you know OpenTelemetry also supports metrics with a comprehensive, forward-looking data model and SDKs? When it comes to metrics, one thinks of Prometheus, but Otel metrics provide exciting ideas such as cumulative deltas, exponential histograms, and more! This talk will demystify everything about Otel Metrics, from the data model to APIs to how to get started. We will cover the differences between Otel Metrics and Prometheus and explain the reasons why people get excited about using Otel Metrics.