also SLI, SLA, service level
An SLI is what you measure (say, the share of answers under 5 seconds). An SLO is your target for it (99 percent). An SLA is the promise to a customer, with consequences if missed.
You have done this if
You set a target that 95 percent of chat responses start streaming within 2 seconds and alerted on it.
Say it in a review
Our SLO is 99 percent of answers grounded and under 8 seconds over 28 days.
On the AI Application map Observability