Evaluation harness
Offline, online, drift.
If you can't measure it, you can't ship it. Our evaluation harness wires offline benchmarks, online A/B, and drift detection into a single dashboard, so the team sees what shipped, what regressed, and what's about to.
Why most eval suites are theatre
Public benchmarks measure things your customers don't care about. Internal benchmarks measure things your team forgot to update. A useful eval harness is opinionated about your data, your failure modes, and your customer-visible outcomes — and refreshes itself on a schedule the team trusts.
Layers of evaluation
Offline benchmark
Curated test set drawn from production traffic. Versioned, reviewed, refreshed quarterly.
LLM-as-judge
Cheap, scalable scoring with calibrated agreement against human raters.
Online A/B
Per-customer cohorts, statistical significance built into the dashboard.
Drift detection
Input distribution alerts. Output distribution alerts. Eval-score-over-time alerts.
Human review
Sampled traces queued to operators with a 24-hour SLA on labeling.
Red-team battery
Adversarial prompts run before every model promotion. Failures gate the release.