How to Compare AI Service Quality Before and After a Prompt Change

A prompt change can improve one task while altering answers on others. Reviewing only the request that motivated the change can miss regressions.

What to check

Use a versioned set of representative and edge-case inputs, compare outcomes and citations, and check refusals, latency, and human corrections. Remove sensitive content from evaluation data.

Recommended next step

Require acceptance criteria and a rollback path for prompt updates. Informatix Systems can help evaluate AI systems and production changes.