Encyclopedia Evalica / Observability / Service Level Indicator (SLI)
Service Level Indicator (SLI)
/'ser.vuhs 'leh.vuhl 'ih.nduh.kay.ter ess.el.eye/A measured signal of service performance (latency, availability, error rate). SLIs are the raw measurements you track. (noun)
“Tool-call success rate is one of our SLIs.”
Related Observability terms
- Active observability •
- AI observability •
- Alert / threshold •
- Dashboard •
- Data flywheel •
- Deep search •
- Drift •
- Error rate •
- Feedback loop •
- Logs •
- Model drift •
- Online evaluation (production scoring) •
- P50 / P95 / P99 (Percentiles) •
- Sampling rate •
- Service Level Objective (SLO) •
- Time-to-first-token (TTFT) •
- Token usage / cost tracking •
- Topics
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