ℹ️ About the Tests

Excess Word Ratio: Flags overused, formalized vocabulary common in LLMs.

Type-Token Ratio: Measures diversity of word use. Lower = more repetition.

Lexical Richness: Ratio of unique words adjusted by length (entropy-like).

Average Sentence Length: AI often favors longer, clause-heavy sentences.

Verb / Adjective Ratio: AI tends to overuse action and descriptive words.

Trigram Repetition: Repeating the same 3-word patterns is typical in AI writing.

Pronoun Ratio: Human text often includes "I", "we", etc. AI text less so.

Inspired by: https://www.science.org/doi/10.1126/sciadv.adt3813