Span
One unit of work in a trace. Each span has a name, start time, duration, and metadata. In agent tracing, spans cover LLM calls, tool executions, and loop iterations, nested in a hierarchy.
Also calledtrace spanspans
Where you meet this in practice
Foundation of AI opens one full lesson to anyone. No account, no card, the whole lesson.
Read the free lessonAbout this glossary
Plain-English definitions of the AI and AI agent terms that turn up in vendor pitches, product decisions and team conversations.