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Why Elo Grades Eloquence the Way It Does
Inside the multi-phase grading architecture — and the research that shapes every metric.
Christian Perez · Founder, AltivumJun 19, 20261 min read
Elo grades in three phases: deterministic pre-processing, parallel expert analysis, and synthesis. Each phase exists because the research on language assessment says it should.
Measurement before judgment
We compute what can be computed exactly before asking a model to assess anything subjective. Filler rate, lexical density, and readability are arithmetic, not opinion.
A score you cannot explain is a score you cannot trust.
How the experts divide the work
Three focused expert passes run in parallel, each scoped to a domain it can reason about well.
const experts = [
discourse, // coherence + structure
language, // syntax + vocabulary
audience, // engagement + persuasion
]The synthesis pass calibrates the experts against the computed metrics and your history, producing the final report.