How GPTZero Works
GPTZero made perplexity and burstiness famous, then quietly retired both. Here is what its classifier measures now, what a report actually shows, and where the tool says its own limits are.
PhD in natural language processing, with years spent building NLP applications end to end. Moe works on text analysis: lexical and syntactic structure, and what separates machine-generated prose from human prose statistically. He has been experimenting with computational linguistics since the early days of NLTK, spaCy and WordNet, and still writes most of his tooling in Python.
GPTZero made perplexity and burstiness famous, then quietly retired both. Here is what its classifier measures now, what a report actually shows, and where the tool says its own limits are.
APA says spell it out. Chicago says it depends on the discipline. MLA says nothing is wrong with it at all. What three major style guides actually say about contractions, and why the real fix for stiff prose is not adding them back in.
Arabic academic writing has its own AI tells: calque openers, stacked hedges, and a flattened rhythm that Modern Standard Arabic does not normally use. Here is how those tells show up, how universities across the Arab world are responding, and what a humanizer needs to preserve when the source language is Arabic.
TextPulse runs as a single engine across more than 60 languages, but detector adoption, register norms, and citation habits differ from country to country. This hub explains why language-specific humanization matters and links to in-depth guides for 15 languages, from Indonesian to Hindi.
Vietnamese formal writing has its own AI tells: a fixed rotation of Sino-Vietnamese transition openers that ChatGPT reaches for far more often than a person would. This guide breaks down what flags Vietnamese AI text, how Vietnamese universities handle detection, and what a humanizer has to preserve to keep citations and terminology intact.
Academic Spanish has its own AI tells: calqued phrases, stacked hedges, and a flatter rhythm than a trained reader expects. This post covers what triggers a flag, what universities across Spain and Latin America currently say about disclosure, and what a humanizer needs to preserve to survive review.