System

The AI system (model + tool + platform configuration) being operated. Distinct from the operator.

Model identifiers, tool identifiers, platform identifiers from session metadata.

System-level aggregates of token pillars across operators.

Different systems support different operating relationships — system choice affects operator performance.

Compare the same operator across different systems to isolate system effects.

System-level yield distributions, system-level SNR distributions.

If system-level metrics show no difference across systems after controlling for operator, the system is not a meaningful unit.

17 platforms tracked. System-level differences observed in field data.

System effects are confounded with task selection and workflow differences.

SigRank methodology, Upsilon architecture. Architecture: mos2es.com/architecture.