Runs, Traces, Spans: AI Observability EXPLAINED in 30 Seconds!

Hinzugefügt: 2026-04-30

[00:00:00]Let's define the four most important concepts. First, we have runs, and these can also be known as sessions. A run is one complete execution of your prompt or agent from start to finish. It records the entire conversation between the user and the assistant. Next, we have trace.

[00:00:12]A trace captures the whole trajectory the assistant took to generate the final output in an interaction. A run can have several traces. Finally, we have span. A span is the minimum unit of information within a trace. It captures the immediate thought, tool call, or generated asset. A trace is composed of multiple spans.