LLM evaluation architecture — benchmark, arena, judge, adversarial, regression

Why architecture matters here

LLM eval fails when only public benchmarks are used. Architecture matters because benchmark + product + adversarial + human review compose.

The architecture: every piece explained

The top strip is the suite. Model candidate. Benchmark suite. Chat arena. LLM judge.

The middle row is safety + domain. Adversarial suite. Regression set. Domain-specific eval. Cost + latency.

The lower rows are ops. Metrics + report. Human review. Ops — reproducibility + governance.

End-to-end flow

End-to-end: new checkpoint. Benchmark suite runs. Arena battles. Adversarial passes. Regression on golden set. Domain eval on 200 product tasks. Cost + latency measured. Human sample audit. Report published to team.