Why it matters

A/B enables data-driven LLM improvement. Understanding shapes practice.

Advertisement

The architecture

Feature flag routes 50/50.

Measure metrics per arm.

Statistical test + declare winner.

LLM A/B flowRoute 50/50feature flagMeasure per armquality + latency + costStatistical testdeclare winnerGrowthBook, LaunchDarkly, Split.io, Statsig cover LLM A/B
A/B test.
Advertisement

How it works end to end

Feature flag routing.

Metrics: quality (judge / user feedback), latency, cost.

Sample size for significance.