Building With LLMs
Production/40 min

Cost and Observability

Track the signals that make AI features operational: cost, latency, quality, errors, and user feedback.

Lesson

AI systems need product telemetry and model telemetry. A feature can be technically online and still fail users through slow, expensive, or low-quality outputs.

Teams should monitor cost per task, latency, fallback rates, evaluation scores, and user feedback from day one.

Objectives

Choose core AI metrics.
Connect metrics to product risk.
Create a launch monitoring checklist.

Practice

Create a dashboard outline for an AI feature.
Define alerts for cost, latency, and failed tool calls.

Next action

Write a launch-readiness checklist for a small LLM app.