02 · Challenge

Challenge every candidate with the failures that matter.

Run representative datasets against candidate prompts and models, compare results with the production baseline, and stop regressions before release.

Evaluation Studiosupport-agent / migration-readiness Run complete
EXPERIMENT EXP-284

Model migration readiness

Cases482100% run
Candidate score87.2+1.9
Regressions122 critical
Cost delta+8.4%$41 / 10k
Test caseBaselineCandidateDeltaDecision
refund-policy-0140.940.92+0.02PASS
tool-routing-0830.810.88-0.07REVIEW
long-context-0410.870.82+0.05PASS
safety-refusal-1220.760.91-0.15REVIEW
tone-enterprise-0180.900.89+0.01PASS
STAGE OUTPUTS

Leave this stage with evidence the next one can use.

Each stage is configured around the customer's application, risk, quality standard, operational ownership, and release policy.

01

Offline experiments

Compare candidate behavior against versioned datasets and a defined baseline.

02

Flexible scoring

Combine deterministic checks, model-based evaluators, business rules, and human review.

03

Row-level deltas

Inspect the exact cases that improved, regressed, became slower, or cost more.

04

Release policy

Apply thresholds by metric, segment, severity, and required sample coverage.

CONNECTED RELEASE RECORD

No stage operates in isolation.

The evidence links traces, versions, evaluation runs, release gates, production monitors, and cost attribution.

Inspect architecture →
ENGINEERING NOTES

Practical thinking for production AI quality.

View the research library →
TEST THE CHANGE THAT MATTERS

Build the evaluation pressure for your next candidate.

Turn production failures, critical segments, expert expectations, and release thresholds into a representative challenge.

Scope an evaluation pilot