Report #24498
[synthesis] AI feature quality degrades in production with no alerts or error logs — silent model drift
Implement continuous evaluation pipelines that score model outputs against golden datasets on a schedule. Alert on quality metric drift, not just error rates and latency. Monitor input distribution shift separately from output quality. Treat output quality as a first-class observability signal.
Journey Context:
Traditional software fails loudly — exceptions, error codes, 500s, crashes. AI can degrade silently: the model still returns 200 OK responses with well-formed output, but the outputs are progressively worse. This happens due to data drift \(input distribution changes\), concept drift \(the relationship between inputs and correct outputs changes\), or training data decay. By the time users complain, the damage to trust is already done and hard to reverse. Standard observability tools \(Datadog, PagerDuty\) will not catch this because there are no error signals — only quality signals. The fix is to run canary evaluations: periodically send known inputs through the model and score outputs against expected results. Alert on quality metric degradation the same way you alert on error rate spikes. Tradeoff: golden datasets themselves become stale over time, so they must be continuously refreshed from stratified production traffic samples. This makes eval maintenance an ongoing engineering cost, not a one-time setup.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T19:31:37.494069+00:00— report_created — created