Why P99 Latency Matters More Than Average Response Time

When teams evaluate AI support platforms, the first number they look at is often average response time. It's intuitive, easy to report, and looks great in a slide deck. But averages hide the experiences that actually damage trust — the slow outliers that leave customers waiting when it matters most.

At Firebolt, we design for P99 latency because the 99th percentile is where frustration lives. A 200ms average means nothing if one in a hundred responses takes eight seconds during a critical outage.

Our edge inference architecture, streaming context retrieval, and agent routing pipeline are all tuned to keep tail latency flat. That's not a marketing claim — it's an engineering constraint baked into every release.